CN116205002A - Link simulation method and device, nonvolatile storage medium and computer equipment - Google Patents
Link simulation method and device, nonvolatile storage medium and computer equipment Download PDFInfo
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- CN116205002A CN116205002A CN202310209359.9A CN202310209359A CN116205002A CN 116205002 A CN116205002 A CN 116205002A CN 202310209359 A CN202310209359 A CN 202310209359A CN 116205002 A CN116205002 A CN 116205002A
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Abstract
The invention discloses a connecting rod simulation method, a connecting rod simulation device, a nonvolatile storage medium and computer equipment. Wherein the method comprises the following steps: establishing a geometric model of each of a plurality of components included in the connecting rod, wherein the plurality of components include bolts; establishing a simulation model of the connecting rod according to the respective geometric models of the plurality of components; applying a bolt pretightening force load to the simulation model for simulation to obtain a bolt pretightening force simulation result; applying stress load to the simulation model to simulate, so as to obtain a stress simulation result; and determining a connecting rod working condition simulation result of the connecting rod according to the bolt pretightening force simulation result and the stress simulation result. The invention solves the technical problem that the simulation of the connecting rod is inaccurate because the deformation of the connecting rod caused by the bolt pretightening force is not considered in the prior art.
Description
Technical Field
The invention relates to the field of mechanical engineering, in particular to a connecting rod simulation method and device, a nonvolatile storage medium and computer equipment.
Background
The power machine with crank connecting rod structure includes piston, connecting rod, crankshaft and other moving parts, and features that the reciprocating motion and rotating motion are converted mutually, and in the conversion of reciprocating motion and rotating motion, the connecting rod is one bridge for converting two kinds of motion modes, so that the connecting rod has complicated motion mode, including both rotating motion and reciprocating motion. In order to ensure that the reliability is comprehensively evaluated in the design process of the product, the reliability faults of the connecting rod are avoided when a prototype or a product subsequently put into the market occur, the enterprise cost is reduced, the competitiveness of the product is improved, the connecting rod is required to be comprehensively simulated before the prototype is produced, and the working condition of the connecting rod is checked and verified.
In view of the high requirements of the motion form and importance of the connecting rod on the reliability of the connecting rod, it is important to develop a reliable and rapid calculation method.
The connecting rod is an assembly body, fig. 1 is a schematic view of a connecting rod structure provided according to the prior art, and as shown in fig. 1, the connecting rod comprises a connecting rod body (1), a connecting rod cover (4), a connecting rod bolt (3) and a connecting rod small end bearing (5), and a connecting rod big end bearing (2). The connecting rod bolt has the function of providing enough bolt pretightening force to firmly assemble the connecting rod body, the connecting rod cover and the bearing together, the connecting rod body, the connecting rod cover and the bearing are complex in processing and assembling process due to the existence of the connecting rod bolt pretightening force, the surface of a connecting rod bearing hole is not in a standard circular structure after the connecting rod body and the connecting rod cover are assembled under the effect of the connecting rod bolt pretightening force, the surface of the bearing hole is seriously deformed, the bearing hole is required to be in a standard circular structure in the installation state, the deformation is required to be processed and removed by adopting a boring processing method, the connecting rod assembly body after boring is disassembled, and then the connecting rod body, the connecting rod cover and the bearing are finally assembled, so that the inner surface of the bearing hole becomes the standard circular shape after the assembling is finished, and a necessary bearing oil film can be formed in working. The simulation process of the connecting rod in the related art is not consistent with the actual connecting rod assembly process, and the working characteristics of the actual connecting rod cannot be reflected.
In view of the above problems, no effective solution has been proposed at present.
Disclosure of Invention
The embodiment of the invention provides a connecting rod simulation method, a device, a nonvolatile storage medium and computer equipment, which at least solve the technical problem that the connecting rod simulation is inaccurate due to deformation of the connecting rod caused by the bolt pretightening force in the prior art.
According to an aspect of an embodiment of the present invention, there is provided a link simulation method including: establishing a geometric model of each of a plurality of components included in the connecting rod, wherein the plurality of components include bolts; establishing a simulation model of the connecting rod according to the respective geometric models of the plurality of components; applying a bolt pretightening force load to the simulation model for simulation to obtain a bolt pretightening force simulation result; applying stress load to the simulation model to simulate, so as to obtain a stress simulation result; and determining a connecting rod working condition simulation result of the connecting rod according to the bolt pretightening force simulation result and the stress simulation result.
Optionally, determining a connecting rod working condition simulation result of the connecting rod according to the bolt pretightening force simulation result and the stress simulation result, including: determining bolt pretightening force tensor data from a bolt pretightening force simulation result; determining stress tensor data from the stress simulation result; and superposing and calculating the bolt pretightening force tensor data and the stress tensor data to obtain a connecting rod working condition simulation result.
Optionally, applying stress load to the simulation model to simulate, so as to obtain a stress simulation result, including: determining the variation range of stress applied to a test connecting rod matched with the connecting rod model in the working process; determining stress load according to the change range of the stress; and applying stress load to the simulation model to simulate according to the stress constraint condition corresponding to the stress load, so as to obtain a stress simulation result.
Optionally, according to a stress constraint condition corresponding to the stress load, applying the stress load to the simulation model to simulate the stress load, so as to obtain a stress simulation result, including: under the condition that the stress load comprises a tension load, applying tension load to the simulation model according to a tension constraint condition corresponding to the tension load to simulate, so as to obtain a tension simulation result, wherein the stress constraint condition comprises the tension constraint condition, and the stress simulation result comprises the tension simulation result; and/or under the condition that the stress load comprises a pressure load, applying the pressure load to the simulation model according to a pressure constraint condition corresponding to the stress load to simulate, so as to obtain a pressure simulation result, wherein the stress constraint condition comprises a tension constraint condition, and the stress simulation result comprises a pressure simulation result.
Optionally, applying a bolt pretightening force load to the simulation model to simulate, so as to obtain a bolt pretightening force simulation result, including: obtaining a variation range of bolt pretightening force, wherein the bolt pretightening force is a force generated by tightening a bolt when a test connecting rod matched with the type of the connecting rod is processed; determining the bolt pre-tightening force load according to the change range of the bolt pre-tightening force; and applying bolt pre-tightening force load to the simulation model according to the bolt pre-tightening force constraint condition corresponding to the bolt pre-tightening force load to simulate, so as to obtain a bolt pre-tightening force simulation result.
Optionally, the method further comprises: acquiring a connecting rod working state evaluation rule; and according to the working condition evaluation rule of the connecting rod, evaluating the working condition simulation result of the connecting rod to obtain the working condition evaluation result of the connecting rod.
Optionally, the method further comprises: applying bearing interference load to the simulation model to simulate, and obtaining a bearing interference simulation result, wherein the plurality of parts comprise bearings; and determining the comprehensive working condition simulation result of the connecting rod according to the working condition simulation result of the connecting rod and the interference simulation result of the bearing.
According to another aspect of the embodiment of the present invention, there is also provided a link simulation apparatus including: a first modeling module for establishing a geometric model of each of a plurality of components included in the connecting rod, wherein the plurality of components include bolts; the second modeling module is used for establishing a simulation model of the connecting rod according to the respective geometric models of the plurality of components; the first simulation module is used for simulating the bolt pretightening force load applied to the simulation model to obtain a bolt pretightening force simulation result; the second simulation module is used for simulating the stress load applied to the simulation model to obtain a stress simulation result; the determining module is used for determining the connecting rod working condition simulation result of the connecting rod according to the bolt pretightening force simulation result and the stress simulation result.
According to still another aspect of the embodiments of the present invention, there is further provided a nonvolatile storage medium, the nonvolatile storage medium including a stored program, wherein when the program runs, a device on which the nonvolatile storage medium is controlled to execute any one of the link simulation methods described above.
According to still another aspect of the embodiment of the present invention, there is further provided a computer device, including a processor, configured to execute a program, where the program executes any one of the link simulation methods described above.
In the embodiment of the invention, the mode of respectively applying the bolt pretightening force load and the stress load to the simulation model of the connecting rod is adopted, and the aim of simulating the stress received by the connecting rod under the condition that the connecting rod bearing hole is not deformed is achieved by combining the bolt pretightening force simulation result and the stress simulation result, so that the technical effect that the simulation process of the connecting rod is more close to the actual working condition of the connecting rod is achieved, and the technical problem that the simulation of the connecting rod is inaccurate due to the fact that the deformation of the connecting rod caused by the bolt pretightening force is not considered in the prior art is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic illustration of a connecting rod structure provided in accordance with the prior art;
FIG. 2 shows a block diagram of the hardware architecture of a computer terminal for implementing a link emulation method;
FIG. 3 is a flow chart of a link simulation method provided according to an embodiment of the present invention;
FIG. 4 is a schematic illustration of a link simulation process provided in accordance with an alternative embodiment of the present invention;
FIG. 5 is a schematic illustration of two conditions of a connecting rod provided in accordance with an alternative embodiment of the present invention;
fig. 6 is a block diagram of a link simulator provided in accordance with an alternative embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In accordance with an embodiment of the present invention, a method embodiment of link simulation is provided, it being noted that the steps illustrated in the flowchart of the figures may be performed in a computer system, such as a set of computer executable instructions, and, although a logical order is illustrated in the flowchart, in some cases, the steps illustrated or described may be performed in an order other than that illustrated herein.
The method embodiment provided in the first embodiment of the present application may be executed in a mobile terminal, a computer terminal or a similar computing device. Fig. 2 shows a hardware block diagram of a computer terminal for implementing the link simulation method. As shown in fig. 2, the computer terminal 10 may include one or more (shown as 102a, 102b, … …,102 n) processors (which may include, but are not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data. In addition, the method may further include: a display, an input/output interface (I/O interface), a Universal Serial BUS (USB) port (which may be included as one of the ports of the BUS), a network interface, a power supply, and/or a camera. It will be appreciated by those of ordinary skill in the art that the configuration shown in fig. 2 is merely illustrative and is not intended to limit the configuration of the electronic device described above. For example, the computer terminal 10 may also include more or fewer components than shown in FIG. 2, or have a different configuration than shown in FIG. 2.
It should be noted that the one or more processors and/or other data processing circuits described above may be referred to herein generally as "data processing circuits. The data processing circuit may be embodied in whole or in part in software, hardware, firmware, or any other combination. Furthermore, the data processing circuitry may be a single stand-alone processing module or incorporated, in whole or in part, into any of the other elements in the computer terminal 10. As referred to in the embodiments of the present application, the data processing circuit acts as a processor control (e.g., selection of the path of the variable resistor termination to interface).
The memory 104 may be used to store software programs and modules of application software, such as program instructions/data storage devices corresponding to the link simulation method in the embodiments of the present invention, and the processor executes the software programs and modules stored in the memory 104, thereby executing various functional applications and data processing, that is, implementing the link simulation method of the application program. Memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory located remotely from the processor, which may be connected to the computer terminal 10 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The display may be, for example, a touch screen type Liquid Crystal Display (LCD) that may enable a user to interact with a user interface of the computer terminal 10.
Fig. 3 is a flow chart of a connecting rod simulation method according to an embodiment of the present invention, as shown in fig. 3, the method includes the following steps:
in step S302, a geometric model of each of a plurality of components included in the connecting rod is built, wherein the plurality of components include bolts.
In this step, the connecting rod includes a plurality of components, so that the simulation of the connecting rod is as close to the actual working condition of the connecting rod as possible, and respective geometric models of the plurality of components included in the connecting rod can be respectively built. The connecting rod comprises a plurality of parts, and the plurality of parts can be a connecting rod body, a connecting rod cover, a connecting rod bolt, a connecting rod bearing, a cross pin (piston pin) and a crank pin (connecting rod neck). Because the connecting rod structure is loaded greatly and the structure is complex, the geometric structure mutation of the connecting rod is serious under the working condition, and the stress concentration phenomenon of the geometric structure mutation part is serious, each detail in the connecting rod needs a special attention area, so that the geometric model of each of a plurality of parts can contain all structural design details, structures such as chamfer angles, oil holes and bolt holes are not simplified, and the technical effect of increasing the accuracy of simulation results can be realized.
Step S304, establishing a simulation model of the connecting rod according to the geometric model of each of the plurality of components.
In this step, the geometric models of the plurality of components may be spliced according to the actual structure of the connecting rod, and a simulation model of the entire connecting rod may be built, and the simulation software used may be finite element simulation software. The connection relationship between the plurality of components in the connecting rod may be defined in the finite element simulation software in a contact pair manner, and the load is transferred between the respective components through the connection relationship of the contact pair, that is, the force of interaction between each pair of contact surfaces may be calculated by the simulation software by providing a plurality of pairs of contact surfaces in the simulation software.
And step S306, applying a bolt pretightening force load to the simulation model to simulate, and obtaining a bolt pretightening force simulation result.
And step S308, applying stress load to the simulation model to simulate, and obtaining a stress simulation result.
Because the stress simulation is carried out on the connecting rod immediately after the bolt pre-tightening force is simulated in the prior art, the deformation of the bearing hole in the connecting rod is caused by the bolt pre-tightening force, and the bearing hole of the connecting rod is not in a standard circle when the stress simulation is carried out on the connecting rod. Under the actual working condition, a technician can process the non-standard round bearing hole into a standard round by adopting a boring mode, so that the bearing hole is the standard round when the connecting rod works. This results in the prior art that the simulation of the connecting rod is not in line with the actual working conditions, so that the simulation result has low accuracy.
In the two steps, the bolt pretightening force load can be independently applied to the simulation model to simulate, and a bolt pretightening force simulation result of the connecting rod under the bolt pretightening force is obtained; the simulation model can be independently simulated by applying stress load to obtain a stress simulation result of the connecting rod under stress, and the simulation of the stress of the connecting rod is performed under the condition that the bearing hole is standard round. Compared with the prior art, the connecting rod simulation method provided by the invention is closer to the actual working condition when the connecting rod stress is simulated.
And step S310, determining a connecting rod working condition simulation result of the connecting rod according to the bolt pretightening force simulation result and the stress simulation result.
In the step, after the bolt pretightening force simulation result and the stress simulation result are obtained respectively, the bolt pretightening force simulation result and the stress simulation result can be synthesized, and the connecting rod working condition simulation result is obtained. The connecting rod working condition simulation result considers the influence of the bolt pretightening force on the connecting rod, and also realizes the simulation of the connecting rod stress when the bearing hole is in a standard circle, so that the connecting rod working condition simulation method provided by the invention is more close to the actual working condition of the connecting rod, and the obtained connecting rod working condition simulation result is more accurate.
Through the steps, the mode of respectively applying the bolt pretightening force load and the stress load to the simulation model of the connecting rod is adopted, and the purpose of simulating the stress received by the connecting rod under the condition that the connecting rod bearing hole is not deformed is achieved by combining the bolt pretightening force simulation result and the stress simulation result, so that the technical effect that the simulation process of the connecting rod is closer to the actual working condition of the connecting rod is achieved, and the technical problem that the connecting rod simulation is inaccurate due to the fact that deformation caused by the bolt pretightening force to the connecting rod is not considered in the prior art is solved.
As an alternative embodiment, according to the bolt pretightening force simulation result and the stress simulation result, the connecting rod working condition simulation result of the connecting rod is determined, and the method can be realized by the following steps: determining bolt pretightening force tensor data from a bolt pretightening force simulation result; determining stress tensor data from the stress simulation result; and superposing and calculating the bolt pretightening force tensor data and the stress tensor data to obtain a connecting rod working condition simulation result.
Optionally, after the simulation software is used to simulate the connecting rod, the simulation result generally includes various data, for example, may include displacement data of each component in the connecting rod, and may also include tensor data of the force received by each component. The method for combining the bolt pre-tightening force simulation result and the stress simulation result can be that bolt pre-tightening force tensor data in the bolt pre-tightening force simulation result and stress tensor data in the stress simulation result are respectively extracted, and the bolt pre-tightening force tensor data and the stress tensor data are subjected to superposition calculation to obtain stress data of the whole connecting rod, namely the connecting rod working condition simulation result. The superposition calculation performed on the bolt pretightening force tensor data and the stress tensor data can be linear superposition calculation; other types of data can be extracted from the bolt pretightening force simulation result, the same type of data is extracted from the stress simulation result, and the two types of data are comprehensively calculated to obtain the connecting rod working condition simulation result. It should be noted that, the link working condition simulation result of the connecting rod determined according to the bolt pretightening force simulation result and the stress simulation result may be implemented by simulation software, or may be further written with a program to perform data processing on the simulation result output by the simulation software, so as to obtain the link working condition simulation result.
As an alternative embodiment, the stress load applied to the simulation model is simulated to obtain a stress simulation result, which can be realized by the following steps: determining the variation range of stress applied to a test connecting rod matched with the connecting rod model in the working process; determining stress load according to the change range of the stress; and applying stress load to the simulation model to simulate according to the stress constraint condition corresponding to the stress load, so as to obtain a stress simulation result.
Optionally, when the simulation model is simulated by considering the external stress of the connecting rod alone, the change range of the stress possibly suffered by the connecting rod under the actual working condition can be determined first, and the determination mode can be to determine the change range of the stress suffered by the test connecting rod matched with the connecting rod model in the working process; after the stress change received by the connecting rod is determined, the magnitude of the stress load applied to the connecting rod in the simulation process can be determined according to the change range of the stress, and the maximum stress in the stress change range can be determined as the value of the stress load, because when the simulation result of the connecting rod when the stress is maximum is normal, the simulation result of the connecting rod under other stresses is also normal; after the stress load is determined, stress constraint conditions corresponding to the stress load can be set in simulation software, and the connecting rod is simulated to obtain a stress simulation result.
As an alternative embodiment, according to the stress constraint condition corresponding to the stress load, the stress load is applied to the simulation model to simulate, so as to obtain a stress simulation result, which can be realized by the following steps: under the condition that the stress load comprises a tension load, applying tension load to the simulation model according to a tension constraint condition corresponding to the tension load to simulate, so as to obtain a tension simulation result, wherein the stress constraint condition comprises the tension constraint condition, and the stress simulation result comprises the tension simulation result; and/or under the condition that the stress load comprises a pressure load, applying the pressure load to the simulation model according to a pressure constraint condition corresponding to the stress load to simulate, so as to obtain a pressure simulation result, wherein the stress constraint condition comprises a tension constraint condition, and the stress simulation result comprises a pressure simulation result.
Optionally, under the actual working condition, the stress load born by the connecting rod can come from any angle, the value of the stress load can also be changed, in the process of changing the stress load of the connecting rod, when the piston (the cross head) is at the two positions of the upper (outer) dead point and the lower (inner) dead point, opposite trends of compression and pulling are respectively generated on the connecting rod, and the stress at other positions is in the range of the two stress states, so that the tension load and/or the pressure load are respectively exerted on the simulation model to simulate, namely, the stress simulation of the connecting rod can comprise the tension simulation and the pressure simulation of the connecting rod, and can also comprise the tension simulation or the pressure simulation only. Before the tension simulation, the relative positions of all the parts in the connecting rod are required to be adjusted so that the connecting rod is clung to the contact surface generating the tension to the connecting rod; similarly, before the pressure simulation is performed, the relative positions of the components in the connecting rod need to be adjusted so that the connecting rod is in close contact with the contact surface where the pressure is generated on the connecting rod.
As an alternative embodiment, the bolt pretightening force load applied to the simulation model is simulated to obtain a bolt pretightening force simulation result, which can be realized by the following steps: obtaining a variation range of bolt pretightening force, wherein the bolt pretightening force is a force generated by tightening a bolt when a test connecting rod matched with the type of the connecting rod is processed; determining the bolt pre-tightening force load according to the change range of the bolt pre-tightening force; and applying bolt pre-tightening force load to the simulation model according to the bolt pre-tightening force constraint condition corresponding to the bolt pre-tightening force load to simulate, so as to obtain a bolt pre-tightening force simulation result.
Optionally, when the influence of the bolt pretightening force on the connecting rod is considered independently, the change range of the bolt pretightening force can be obtained firstly, the change range of the bolt pretightening force can be obtained by measuring the force generated by tightening the bolt when the test connecting rod matched with the model of the connecting rod is processed, and the change range of the bolt pretightening force can also be obtained according to the setting parameters of a machine for tightening the bolt in the actual processing process. The bolt pretightening force load can be determined according to the variation range of the bolt pretightening force, for example, the bolt pretightening force load can be determined to be the maximum value in the variation range of the bolt pretightening force, the bolt pretightening force load can be determined to be the minimum value in the variation range of the bolt pretightening force, the bolt pretightening force load can be determined to be the average value in the variation range of the bolt pretightening force, and of course, different bolt pretightening force load values can be determined and the bolt pretightening force simulation can be performed respectively.
As an alternative embodiment, this can also be achieved by the following steps: acquiring a connecting rod working state evaluation rule; and according to the working condition evaluation rule of the connecting rod, evaluating the working condition simulation result of the connecting rod to obtain the working condition evaluation result of the connecting rod.
Optionally, after the link working condition simulation result is obtained, link working condition evaluation rules specified by industry or company can be obtained, and the link working condition simulation result obtained by link simulation is evaluated, so that the link working condition evaluation result can be obtained.
As an alternative embodiment, this can also be achieved by the following steps: applying bearing interference load to the simulation model to simulate, and obtaining a bearing interference simulation result, wherein the plurality of parts comprise bearings; and determining the comprehensive working condition simulation result of the connecting rod according to the working condition simulation result of the connecting rod and the interference simulation result of the bearing.
Optionally, the simulation model can be independently simulated by applying the bearing interference load, the variation range of the bearing interference of the connecting rod under the actual working condition is firstly obtained, the value of the bearing interference load is set according to the variation range, the minimum value of the variation range of the bearing interference can be set as the value of the bearing interference load to simulate, a first bearing interference simulation result is obtained, the back pressure evaluation rule of the connecting rod bearing specified by the industry or the company can be obtained, the first bearing interference simulation result is evaluated, and the back pressure evaluation result of the connecting rod bearing can be obtained; the maximum value of the variation range of the bearing interference can be set as the value of the bearing interference load to simulate, so as to obtain a second bearing interference simulation result, the strength evaluation rule of the connecting rod bearing specified by the industry or the company can be obtained, the second bearing interference simulation result is evaluated, and the strength evaluation result of the connecting rod bearing can be obtained; the comprehensive working condition simulation result of the connecting rod can be comprehensively determined according to the bearing interference simulation result and the connecting rod working condition simulation result, the connecting rod fatigue safety coefficient evaluation rule specified by the industry or the company is obtained, the comprehensive working condition simulation result of the connecting rod is evaluated, and the connecting rod fatigue safety coefficient evaluation result can be obtained.
Optionally, when different types of loads are applied to the simulation model to simulate, different constraint conditions corresponding to the different types of loads are required to be set. For example, when the bolt preload load is applied to simulate, all of the plurality of components included in the connecting rod may be restrained; when bearing interference load is applied for simulation, the bearing can not be restrained, but other parts of the connecting rod need to be restrained; when the simulation is performed by applying the stress load, the connecting rod body and the connecting rod cover may not be constrained, but the crank pin (connecting rod neck) may be constrained.
As a specific embodiment, fig. 4 is a schematic diagram of a link simulation process according to an alternative embodiment of the present invention, and as shown in fig. 4, the link simulation process mainly includes: the method comprises the following specific steps of construction of a connecting rod geometric model, connecting rod grid division, connecting rod operation condition definition, connection relation definition among all components in a connecting rod, simulation and combined superposition processing of simulation results:
(1) Building a connecting rod geometric model: the connecting rod structure is loaded greatly, the structure is complex, the geometric structure mutation of the connecting rod is serious under the working condition, the stress concentration phenomenon of the geometric structure mutation part is serious, and each detail in all the connecting rods is a special attention area, so that the geometric model of each part of the connecting rod must contain all structural design details, and chamfering, oil holes and bolt holes cannot be simplified at will.
(2) Dividing a connecting rod grid: because the structure of the connecting rod is a symmetrical structure, the simulation model can be processed by adopting a 1/4 symmetrical model, a 1/2 symmetrical model or a full model, and the method provided by the invention is applicable to the symmetrical model and the full model except that symmetrical constraint needs to be added when the symmetrical model is adopted. The division of the connecting rod grid must consider both the accuracy of the calculation result and the calculation timeliness, so the method of dividing the grid is as follows: the grids of the connecting rod stress concentration area and the concerned area are relatively dense, such as a connecting rod bolt table transition fillet of a large head cover, a small head oil hole, a large head and rod body transition fillet, a small head hole edge and the like, wherein at least 4 layers of grids are distributed in the area, and the grid size is 2-5mm; the joint surface of the connecting rod body and the connecting rod cover, the joint surface of the connecting rod bolt head and the joint surface, the joint surface of the bolt thread part and the connecting rod screwing part, the joint surface of the connecting rod upper shoe and the lower shoe, the joint surface of the connecting rod shoe and the connecting rod shoe seat hole and the joint surface grid of the connecting rod shoe and the crank pin (connecting rod neck) are processed in a mode of one-to-one correspondence by adopting nodes; the grid growth rate is 1.5-2.5; the connecting rod bearings and bolts may be of both first order hexahedral and second order tetrahedral units, except that all component grid types must be of second order tetrahedral units; the minimum size of each type of grid is more than or equal to 0.5mm and less than or equal to 15mm; the minimum angle of the triangular mesh is more than or equal to 10 degrees, and the maximum angle is less than or equal to 140 degrees; the collapse degree of the tetrahedral mesh is more than or equal to 0.1; the key fillet area and the thread area need to be further processed in a sub-model mode, and the size of the sub-model grid is as follows: 0.2-2mm.
(3) And (3) defining the operation condition of the connecting rod: the stress load applied to the connecting rod can come from any angle, the value of the stress load can also be changed, in the process of changing the stress load of the connecting rod, when the piston (the cross head) is positioned at the upper (outer) dead point and the lower (inner) dead point, opposite trends of compression and pulling are respectively generated on the connecting rod, the stress of other positions is within the range of the two stress states, so that the dynamic load of 360 degrees can be equivalent to a working condition that the time point is taken as the upper (outer) dead point and the lower (inner) dead point, fig. 5 is a schematic diagram of the two working conditions of the connecting rod, as shown in fig. 5, the state characteristic 1 is the working condition 1, the cross head (the piston) is positioned at the outer (upper) dead point, the in-cylinder pressure load is the lowest, and the pressure load applied to the connecting rod is the largest; the state characteristic 2 is that the working condition 2 and the cross head (piston) are positioned at the inner (lower) dead point position, at the moment, the in-cylinder pressure load is highest, and the tension load born by the connecting rod is largest.
(4) The connection relation between each part in the connecting rod is defined as follows: the connection relation among a plurality of parts in the connecting rod is defined in a contact pair mode in finite element simulation software, load is transmitted between the parts through the connection relation of the contact pair, and the connecting rod assembly simulation mainly comprises two types, namely a general contact pair and a thread contact pair. A typical contact pair comprises the following: the connecting rod body is in contact with the connecting rod cover; the connecting rod bolt head is in contact with the connecting rod cover; the upper tile and the lower tile of the connecting rod are in contact with each other; the connecting rod tile is in contact with the connecting rod tile seat hole; the connecting rod shoe is in contact with the crank pin (connecting rod neck); a piston (cross head) pin is in contact with the small end of the connecting rod; the threaded contact pair comprises the following: the screw thread of the bolt is in contact with the screw thread of the connecting rod.
(5) The simulation includes applying and constraining the load of the simulation model as follows:
load application: the connecting rod analysis only comprises 9 load analysis steps, and the steps are as follows: load step 1: determining a minimum bolt pre-tightening force load step, namely determining the bolt pre-tightening force load according to the minimum value in the bolt pre-tightening force change range; load step 2: determining the maximum bolt pre-tightening force load according to the maximum value in the bolt pre-tightening force variation range; load step 3: unloading the bolt pre-tightening load, namely unloading the bolt pre-tightening load to the simulation model; load step 4: determining the minimum bearing interference load step, namely determining the bearing interference load according to the minimum value in the variation range of bearing interference; load step 5: determining the maximum bearing interference load step, namely determining the bearing interference load according to the maximum value in the variation range of bearing interference; load step 6: unloading the bearing interference load, namely unloading the bearing interference load to the simulation model; load step 7: a pressure preparation load step; load step 8: a pressure load step, namely adding a pressure load to the simulation model and simulating; load step 9: inertial force pre-load step, i.e. pull force pre-load step; load step 10: inertial load step, i.e. tension load step, i.e. adding inertial load (tension load) to the simulation model and simulating. Before the pressure simulation is carried out, the load step 7 is to adjust the relative positions of all parts in the connecting rod, so that the connecting rod is tightly attached to a contact surface for generating pressure on the connecting rod; the load step 9 is to adjust the relative positions of the components in the connecting rod before the tension simulation is performed, so that the connecting rod is tightly attached to the contact surface generating the tension on the connecting rod.
The constraints corresponding to the load steps are set as follows: load steps 1 to 3: the plurality of parts included in the connecting rod are fully constrained; load steps 4 to 6: releasing the constraint of the bearing and fully constraining other components; load step 7: releasing the constraint of a piston (cross head) pin and a crank pin (connecting rod neck) on the basis of the load step 6, and fully constraining the connecting rod body and the connecting rod cover; load step 8: releasing the constraint of the connecting rod body and the connecting rod cover, and fully constraining the crank pin (connecting rod neck); load step 9: full constraint is carried out on the connecting rod body and the connecting rod cover; load step 10: and the restraint of the connecting rod body and the connecting rod cover is released, and the crank pin (connecting rod neck) is fully restrained.
(6) And (3) carrying out combined superposition processing on simulation results: the reliability of the connecting rod can be systematically evaluated by carrying out the calculation and analysis of 10 load steps and further carrying out deep processing through a result automation processing program, and the stress results of the corresponding load steps obtained through calculation can be overlapped, so that the stress results of various working states of the connecting rod can be obtained.
And (3) back pressure evaluation of the connecting rod bearing: obtained by the loading step 4. And (3) evaluating the strength of the connecting rod bearing: obtained by the loading step 5. All comprehensive compressive stress evaluations in the connecting rod work: the method is obtained by carrying out combined superposition on the load step 2, the load step 5, the load step 8 and the load step 10. And (3) evaluating all comprehensive tensile stress in the operation of the connecting rod: the method is obtained by carrying out combined superposition on the load step 2, the load step 5 and the load step 10. And (3) evaluating the separation trend of the connecting rod cover and the connecting rod body: the method is obtained by carrying out combined superposition on the load step 1, the load step 6 and the load step 10. And (3) evaluating the fatigue safety coefficient of the connecting rod: the two working conditions of the integrated pulling and the integrated pressing of the superposition synthesis are obtained.
Aiming at the connecting rod thread structure, sub-model analysis is required, and the analysis working condition, load step, boundary and result deep processing are completely consistent with the global model calculation process.
It should be noted that, for simplicity of description, the foregoing method embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present invention is not limited by the order of acts described, as some steps may be performed in other orders or concurrently in accordance with the present invention. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present invention.
From the above description of the embodiments, it will be clear to those skilled in the art that the link simulation method according to the above embodiments may be implemented by means of software plus necessary general hardware platform, but of course may also be implemented by hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.
According to an embodiment of the present invention, there is also provided a link simulation apparatus for implementing the above-mentioned link simulation method, and fig. 6 is a block diagram of a structure of the link simulation apparatus according to an embodiment of the present invention, as shown in fig. 6, the link simulation apparatus includes: the link simulation apparatus is described below with respect to the first modeling module 62, the second modeling module 64, the first simulation module 66, the second simulation module 68, and the determination module 70.
A first modeling module 62 is configured to build a geometric model of each of a plurality of components included in the connecting rod, wherein the plurality of components include bolts.
The second modeling module 64 is coupled to the first modeling module 62 for building a simulation model of the connecting rod based on the respective geometric models of the plurality of components.
The first simulation module 66 is connected with the second modeling module 64, and is used for simulating the bolt pretightening force load applied to the simulation model to obtain a bolt pretightening force simulation result.
The second simulation module 68 is connected to the first simulation module 66, and is used for simulating the stress load applied to the simulation model to obtain a stress simulation result.
The determining module 70 is connected to the second simulation module 68, and is configured to determine a link working condition simulation result of the link according to the bolt pretightening force simulation result and the stress simulation result.
It should be noted that the first modeling module 62, the second modeling module 64, the first simulation module 66, the second simulation module 68, and the determination module 70 correspond to steps S302 to S310 in the embodiment, and the plurality of modules are the same as the examples and application scenarios implemented by the corresponding steps, but are not limited to the disclosure of the above embodiment. It should be noted that the above-described module may be operated as a part of the apparatus in the computer terminal 10 provided in the embodiment.
Embodiments of the present invention may provide a computer device, optionally in this embodiment, the computer device may be located in at least one network device of a plurality of network devices of a computer network. The computer device includes a memory and a processor.
The memory may be used to store software programs and modules, such as program instructions/modules corresponding to the link simulation method and apparatus in the embodiments of the present invention, and the processor executes the software programs and modules stored in the memory, thereby executing various functional applications and data processing, that is, implementing the link simulation method described above. The memory may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory may further include memory remotely located relative to the processor, which may be connected to the computer terminal via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The processor may call the information and the application program stored in the memory through the transmission device to perform the following steps: establishing a geometric model of each of a plurality of components included in the connecting rod, wherein the plurality of components include bolts; establishing a simulation model of the connecting rod according to the respective geometric models of the plurality of components; applying a bolt pretightening force load to the simulation model for simulation to obtain a bolt pretightening force simulation result; applying stress load to the simulation model to simulate, so as to obtain a stress simulation result; and determining a connecting rod working condition simulation result of the connecting rod according to the bolt pretightening force simulation result and the stress simulation result.
Optionally, the above processor may further execute program code for: according to the bolt pretightening force simulation result and the stress simulation result, determining a connecting rod working condition simulation result of the connecting rod comprises the following steps: determining bolt pretightening force tensor data from a bolt pretightening force simulation result; determining stress tensor data from the stress simulation result; and superposing and calculating the bolt pretightening force tensor data and the stress tensor data to obtain a connecting rod working condition simulation result.
Optionally, the above processor may further execute program code for: applying stress load to the simulation model to simulate, and obtaining a stress simulation result, wherein the method comprises the following steps: determining the variation range of stress applied to a test connecting rod matched with the connecting rod model in the working process; determining stress load according to the change range of the stress; and applying stress load to the simulation model to simulate according to the stress constraint condition corresponding to the stress load, so as to obtain a stress simulation result.
Optionally, the above processor may further execute program code for: applying stress load to the simulation model for simulation according to stress constraint conditions corresponding to the stress load to obtain a stress simulation result, wherein the simulation result comprises the following steps: under the condition that the stress load comprises a tension load, applying tension load to the simulation model according to a tension constraint condition corresponding to the tension load to simulate, so as to obtain a tension simulation result, wherein the stress constraint condition comprises the tension constraint condition, and the stress simulation result comprises the tension simulation result; and/or under the condition that the stress load comprises a pressure load, applying the pressure load to the simulation model according to a pressure constraint condition corresponding to the stress load to simulate, so as to obtain a pressure simulation result, wherein the stress constraint condition comprises a tension constraint condition, and the stress simulation result comprises a pressure simulation result.
Optionally, the above processor may further execute program code for: applying bolt pretightening force load to the simulation model for simulation to obtain a bolt pretightening force simulation result, wherein the method comprises the following steps: obtaining a variation range of bolt pretightening force, wherein the bolt pretightening force is a force generated by tightening a bolt when a test connecting rod matched with the type of the connecting rod is processed; determining the bolt pre-tightening force load according to the change range of the bolt pre-tightening force; and applying bolt pre-tightening force load to the simulation model according to the bolt pre-tightening force constraint condition corresponding to the bolt pre-tightening force load to simulate, so as to obtain a bolt pre-tightening force simulation result.
Optionally, the above processor may further execute program code for: acquiring a connecting rod working state evaluation rule; and according to the working condition evaluation rule of the connecting rod, evaluating the working condition simulation result of the connecting rod to obtain the working condition evaluation result of the connecting rod.
Optionally, the above processor may further execute program code for: applying bearing interference load to the simulation model to simulate, and obtaining a bearing interference simulation result, wherein the plurality of parts comprise bearings; and determining the comprehensive working condition simulation result of the connecting rod according to the working condition simulation result of the connecting rod and the interference simulation result of the bearing.
By adopting the embodiment of the invention, a connecting rod simulation scheme is provided. By means of respectively applying bolt pretightening force load and stress load to the simulation model of the connecting rod and combining the bolt pretightening force simulation result and the stress simulation result, the purpose of simulating the stress received by the connecting rod under the condition that the connecting rod bearing hole is not deformed is achieved, the technical effect that the simulation process of the connecting rod is closer to the actual working condition of the connecting rod is achieved, and the technical problem that the connecting rod simulation is inaccurate due to the fact that deformation of the connecting rod caused by the bolt pretightening force is not considered in the prior art is solved.
Those skilled in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be implemented by a program for instructing a terminal device to execute on associated hardware, the program may be stored in a non-volatile storage medium, and the storage medium may include: flash disk, read-Only Memory (ROM), random-access Memory (Random Access Memory, RAM), magnetic or optical disk, and the like.
Embodiments of the present invention also provide a nonvolatile storage medium. Alternatively, in the present embodiment, the above-described nonvolatile storage medium may be used to store the program code executed by the link simulation method provided in the above-described embodiment.
Alternatively, in this embodiment, the above-mentioned nonvolatile storage medium may be located in any one of the computer terminals in the computer terminal group in the computer network, or in any one of the mobile terminals in the mobile terminal group.
Optionally, in the present embodiment, the non-volatile storage medium is arranged to store program code for performing the steps of: establishing a geometric model of each of a plurality of components included in the connecting rod, wherein the plurality of components include bolts; establishing a simulation model of the connecting rod according to the respective geometric models of the plurality of components; applying a bolt pretightening force load to the simulation model for simulation to obtain a bolt pretightening force simulation result; applying stress load to the simulation model to simulate, so as to obtain a stress simulation result; and determining a connecting rod working condition simulation result of the connecting rod according to the bolt pretightening force simulation result and the stress simulation result.
Optionally, in the present embodiment, the non-volatile storage medium is arranged to store program code for performing the steps of: according to the bolt pretightening force simulation result and the stress simulation result, determining a connecting rod working condition simulation result of the connecting rod comprises the following steps: determining bolt pretightening force tensor data from a bolt pretightening force simulation result; determining stress tensor data from the stress simulation result; and superposing and calculating the bolt pretightening force tensor data and the stress tensor data to obtain a connecting rod working condition simulation result.
Optionally, in the present embodiment, the non-volatile storage medium is arranged to store program code for performing the steps of: applying stress load to the simulation model to simulate, and obtaining a stress simulation result, wherein the method comprises the following steps: determining the variation range of stress applied to a test connecting rod matched with the connecting rod model in the working process; determining stress load according to the change range of the stress; and applying stress load to the simulation model to simulate according to the stress constraint condition corresponding to the stress load, so as to obtain a stress simulation result.
Optionally, in the present embodiment, the non-volatile storage medium is arranged to store program code for performing the steps of: applying stress load to the simulation model for simulation according to stress constraint conditions corresponding to the stress load to obtain a stress simulation result, wherein the simulation result comprises the following steps: under the condition that the stress load comprises a tension load, applying tension load to the simulation model according to a tension constraint condition corresponding to the tension load to simulate, so as to obtain a tension simulation result, wherein the stress constraint condition comprises the tension constraint condition, and the stress simulation result comprises the tension simulation result; and/or under the condition that the stress load comprises a pressure load, applying the pressure load to the simulation model according to a pressure constraint condition corresponding to the stress load to simulate, so as to obtain a pressure simulation result, wherein the stress constraint condition comprises a tension constraint condition, and the stress simulation result comprises a pressure simulation result.
Optionally, in the present embodiment, the non-volatile storage medium is arranged to store program code for performing the steps of: applying bolt pretightening force load to the simulation model for simulation to obtain a bolt pretightening force simulation result, wherein the method comprises the following steps: obtaining a variation range of bolt pretightening force, wherein the bolt pretightening force is a force generated by tightening a bolt when a test connecting rod matched with the type of the connecting rod is processed; determining the bolt pre-tightening force load according to the change range of the bolt pre-tightening force; and applying bolt pre-tightening force load to the simulation model according to the bolt pre-tightening force constraint condition corresponding to the bolt pre-tightening force load to simulate, so as to obtain a bolt pre-tightening force simulation result.
Optionally, in the present embodiment, the non-volatile storage medium is arranged to store program code for performing the steps of: acquiring a connecting rod working state evaluation rule; and according to the working condition evaluation rule of the connecting rod, evaluating the working condition simulation result of the connecting rod to obtain the working condition evaluation result of the connecting rod.
Optionally, in the present embodiment, the non-volatile storage medium is arranged to store program code for performing the steps of: applying bearing interference load to the simulation model to simulate, and obtaining a bearing interference simulation result, wherein the plurality of parts comprise bearings; and determining the comprehensive working condition simulation result of the connecting rod according to the working condition simulation result of the connecting rod and the interference simulation result of the bearing.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
In the foregoing embodiments of the present invention, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed technology content may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a non-volatile storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (10)
1. A connecting rod simulation method is characterized by comprising the following steps:
establishing a geometric model of each of a plurality of components included in the connecting rod, wherein the plurality of components include bolts;
establishing a simulation model of the connecting rod according to the respective geometric models of the plurality of components;
applying a bolt pretightening force load to the simulation model for simulation to obtain a bolt pretightening force simulation result;
applying stress load to the simulation model to simulate, so as to obtain a stress simulation result;
and determining a connecting rod working condition simulation result of the connecting rod according to the bolt pretightening force simulation result and the stress simulation result.
2. The method of claim 1, wherein determining a link condition simulation result of the link based on the bolt preload simulation result and the stress simulation result comprises:
determining bolt pretightening force tensor data from the bolt pretightening force simulation result;
Determining stress tensor data from the stress simulation result;
and superposing and calculating the bolt pretightening force tensor data and the stress tensor data to obtain the connecting rod working condition simulation result.
3. The method of claim 1, wherein simulating the application of stress load to the simulation model results in a stress simulation result, comprising:
determining the variation range of the stress suffered by the test connecting rod matched with the connecting rod model in the working process;
determining the stress load according to the variation range of the stress;
and applying stress load to the simulation model to simulate according to the stress constraint condition corresponding to the stress load, so as to obtain the stress simulation result.
4. A method according to claim 3, wherein said applying stress load to said simulation model according to stress constraints corresponding to said stress load simulates said stress simulation results, comprising:
under the condition that the stress load comprises a tension load, applying tension load to the simulation model according to a tension constraint condition corresponding to the tension load to simulate, so as to obtain a tension simulation result, wherein the stress constraint condition comprises a tension constraint condition, and the stress simulation result comprises the tension simulation result; and/or the number of the groups of groups,
And under the condition that the stress load comprises a pressure load, applying the pressure load to the simulation model according to a pressure constraint condition corresponding to the stress load to simulate, so as to obtain a pressure simulation result, wherein the stress constraint condition comprises a tension constraint condition, and the stress simulation result comprises the pressure simulation result.
5. The method of claim 1, wherein the simulating the bolt preload applied to the simulation model to obtain a bolt preload simulation result comprises:
obtaining a variation range of bolt pretightening force, wherein the bolt pretightening force is a force generated by tightening a bolt when a test connecting rod matched with the connecting rod model is processed;
determining the bolt pre-tightening force load according to the change range of the bolt pre-tightening force;
and applying the bolt pre-tightening force load to the simulation model for simulation according to the bolt pre-tightening force constraint condition corresponding to the bolt pre-tightening force load, so as to obtain a bolt pre-tightening force simulation result.
6. The method according to any one of claims 1 to 5, further comprising:
acquiring a connecting rod working state evaluation rule;
And according to the working condition evaluation rule of the connecting rod, evaluating the working condition simulation result of the connecting rod to obtain the working condition evaluation result of the connecting rod.
7. The method according to any one of claims 1 to 5, further comprising:
applying bearing interference load to the simulation model to simulate to obtain a bearing interference simulation result, wherein the plurality of parts comprise bearings;
and determining the comprehensive working condition simulation result of the connecting rod according to the working condition simulation result of the connecting rod and the interference simulation result of the bearing.
8. A link simulation apparatus, comprising:
a first modeling module for establishing a geometric model of each of a plurality of components comprised by the connecting rod, wherein the plurality of components comprise bolts;
the second modeling module is used for establishing a simulation model of the connecting rod according to the respective geometric models of the plurality of components;
the first simulation module is used for applying bolt pretightening force load to the simulation model to simulate, so as to obtain a bolt pretightening force simulation result;
the second simulation module is used for simulating the stress load applied to the simulation model to obtain a stress simulation result;
and the determining module is used for determining the connecting rod working condition simulation result of the connecting rod according to the bolt pretightening force simulation result and the stress simulation result.
9. A non-volatile storage medium, characterized in that the non-volatile storage medium comprises a stored program, wherein the device in which the non-volatile storage medium is controlled to execute the link simulation method according to any one of claims 1 to 7 when the program is run.
10. A computer device, comprising: a memory and a processor, wherein the memory is configured to store,
the memory stores a computer program;
the processor is configured to execute a computer program stored in the memory, and the computer program when executed causes the processor to perform the connecting rod simulation method according to any one of claims 1 to 7.
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| CN202310209359.9A CN116205002A (en) | 2023-03-01 | 2023-03-01 | Link simulation method and device, nonvolatile storage medium and computer equipment |
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| CN202310209359.9A CN116205002A (en) | 2023-03-01 | 2023-03-01 | Link simulation method and device, nonvolatile storage medium and computer equipment |
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| CN116205002A true CN116205002A (en) | 2023-06-02 |
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