CN115356215A - Method, device, equipment and storage medium for measuring strength of underframe of electric power cabin - Google Patents
Method, device, equipment and storage medium for measuring strength of underframe of electric power cabin Download PDFInfo
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- CN115356215A CN115356215A CN202210990844.XA CN202210990844A CN115356215A CN 115356215 A CN115356215 A CN 115356215A CN 202210990844 A CN202210990844 A CN 202210990844A CN 115356215 A CN115356215 A CN 115356215A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/14—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by dead weight, e.g. pendulum; generated by springs tension
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
Abstract
The invention discloses a method, a device, equipment and a storage medium for measuring the strength of a chassis of an electric power cabin. The invention judges whether the underframe of the target cabin body is permanently deformed or not by obtaining the maximum value of the uniformly distributed load and determining the maximum disturbance degree borne by the underframe of the target cabin body and the maximum stress borne by the material per meter of the underframe of the target cabin body, controls the acceptance of the electric power room in the transportation process according to the quantized result by quantizing the deformation of the underframe of the target cabin body, and solves the technical problem that the deformation, damage and damage of the electric power room in the transportation process cannot be quantitatively monitored at present.
Description
Technical Field
The invention relates to the technical field of electric power cabins, in particular to a method, a device, equipment and a storage medium for measuring the strength of an underframe of an electric power cabin.
Background
The prefabricated modular electric power cabin (short for electric power cabin) is a transportation process from the production and manufacturing of products to the final use place of a transformer substation due to the difference of the two places, and the transportation needs to be carried out through a plurality of processes such as integral hoisting or disassembly hoisting, equipment loading, equipment land transportation or sea transportation, equipment loading and unloading and the like. The mechanical strength of the cabin body of the electric power cabin is mainly reflected in the phenomenon that the cabin body is stressed in the process and does not deform, damage or damage. The steel bottom frame of the cabin body is a stirring carrier of the electric power cabin, and the rigidity of the steel frame of the base is a key point for ensuring that the electric power cabin does not generate destructive deformation under various stress conditions. Therefore, the rigidity of the base steel frame of the electric power cabin is an important guarantee of the quality of the electric power cabin.
Therefore, how to provide a method for measuring the strength of the chassis of the electric power cabin to quantitatively monitor deformation, damage and damage of the electric power cabin caused by stress in the transportation process is a technical problem which needs to be solved urgently. The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a method, a device, equipment and a storage medium for measuring the strength of an underframe of an electric power cabin, and aims to solve the technical problem that the deformation, damage and damage of the electric power cabin caused by stress in the transportation process cannot be quantitatively monitored at present.
In order to achieve the above object, the present invention provides a method for measuring strength of an underframe of an electric power cabin, comprising the following steps:
acquiring a first uniform load and a second uniform load of a bottom frame of a target cabin; the first uniform load is a uniform load generated by the total weight of the target cabin body and the common inertia force generated when the target cabin body is lifted upwards, and the second uniform load is a uniform load generated by the longitudinal impact force of the target cabin body;
determining the maximum value of the uniform load based on the first uniform load and the second uniform load;
and judging whether the underframe of the target cabin body is permanently deformed or not according to the maximum value of the uniformly distributed loads.
Optionally, obtaining the first uniform load specifically includes:
obtaining a first uniform load of the bottom frame of the target cabin body according to the total weight and the inertia force of the target cabin body when the target cabin body is lifted upwards; the first equispaced load expression is:
d 1 ＝F/l
F＝G+Q
and F is the resultant force corresponding to the total weight and the inertia force when the target cabin body is lifted upwards, l is the length of the sling, G is the total weight when the target cabin body is lifted upwards, and Q is the inertia force when the target cabin body is lifted upwards.
Optionally, the expression of the total weight of the target cabin when lifted upwards is:
G＝G 1 +G 2
wherein, G 1 Is the weight of the cabin, G 2 The weight of the electrical equipment in the cabin is equal;
the expression of the inertia force of the target cabin body lifted upwards is as follows:
wherein m is the cabin mass, g is the gravitational acceleration, α is the lifting acceleration of the target cabin lifted upwards, v 1 To the initial velocity, v 2 To be the final speed, t is time.
Optionally, obtaining the second uniform load specifically includes:
obtaining a second uniform load of the target cabin according to the longitudinal impact load and the length of the sling when the target cabin is lifted upwards; the second uniform load expression is as follows:
d 2 ＝P d /l
P d ＝G×K d
wherein, P d Longitudinal impact load, K, when the target cabin is lifted upwards d And the impact coefficient of the target cabin body lifted upwards is T, the elastic modulus of the channel steel, the sectional area of the sling, g, the gravitational acceleration and v, the lifting speed.
Optionally, the determining, according to the maximum value of the uniformly distributed load, whether the chassis of the target cabin is permanently deformed specifically includes:
obtaining the maximum disturbance degree borne by the bottom frame of the target cabin body according to the maximum value of the uniformly distributed loads, and judging whether the bottom frame of the target cabin body is permanently deformed or not according to the maximum disturbance degree; and/or
And acquiring the maximum stress of the midpoint of the underframe of the target cabin body according to the maximum value of the uniformly distributed loads, and judging whether the underframe of the target cabin body is permanently deformed or not according to the maximum stress of the midpoint.
Optionally, an expression of a maximum disturbance degree suffered by the underframe of the target cabin is as follows:
wherein the content of the first and second substances,
d is the maximum value of the uniform load, I is the corresponding stress, f p Is the plastic deformation amount of the material of the underframe of the target cabin body;
the step of judging whether the chassis of the target cabin body is permanently deformed specifically comprises the following steps: when f is max ≤f p While, the bottom of the target cabin bodyThe frame will not be permanently deformed; otherwise the chassis of the target cabin is permanently deformed.
Optionally, the expression of the midpoint maximum stress of the underframe of the target cabin is as follows:
wherein M is max Is the maximum force, W, born by the material of the underframe of the target cabin per meter s Is the interface coefficient, sigma, of the material of the underframe of the target cabin p Is the maximum stress of the material of the chassis of the target cabin;
the step of judging whether the chassis of the target cabin body is permanently deformed specifically comprises the following steps: when sigma is less than or equal to sigma p In the meantime, the underframe of the target cabin body cannot be permanently deformed; otherwise the chassis of the target cabin is permanently deformed.
In order to achieve the above object, the present invention also provides an electric power room compartment chassis strength measuring device, including:
the acquisition module is used for acquiring a first uniform load and a second uniform load of the target cabin; the first uniform load is a uniform load generated by the total weight of the target cabin body and the common inertia force generated when the target cabin body is lifted upwards, and the second uniform load is a uniform load generated by the longitudinal impact force of the target cabin body;
the determining module is used for determining the maximum value of the uniform load based on the first uniform load and the second uniform load;
and the judging module is used for judging whether the target cabin body is permanently deformed or not according to the maximum value of the uniformly distributed loads.
In addition, in order to achieve the above object, the present invention also provides an electric power cabin chassis strength measuring apparatus, including: the electric power cabin chassis strength measuring method comprises the steps of the electric power cabin chassis strength measuring method when the electric power cabin chassis strength measuring method is executed by the processor.
In order to achieve the above object, the present invention also provides a storage medium having stored thereon a power house chassis strength measuring method program which, when executed by a processor, realizes the steps of the above power house chassis strength measuring method.
The method comprises the steps of obtaining a first uniform load and a second uniform load of a bottom frame of a target cabin body, determining the maximum value of the uniform loads, determining the maximum disturbance degree borne by the bottom frame of the target cabin body and/or the maximum stress borne by the material per meter of the bottom frame of the target cabin body according to the maximum value of the uniform loads, and judging whether the bottom frame of the target cabin body is permanently deformed. According to the invention, the maximum value of the uniformly distributed load is obtained, the maximum disturbance degree borne by the underframe of the target cabin body and the maximum stress borne by the material of the underframe of the target cabin body per meter are determined to judge whether the underframe of the target cabin body is permanently deformed, the deformation of the underframe of the target cabin body is quantitatively processed, and the acceptance of the electric room in the transportation process is controlled according to the quantized result, so that the technical problem that the deformation, damage and damage of the electric room in the transportation process caused by stress cannot be quantitatively monitored at present is solved.
Drawings
FIG. 1 is a schematic structural diagram of an apparatus for measuring strength of an underframe of an electric cabin according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a method for measuring strength of a chassis of an electric cabin according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the electric compartment being lifted upwards according to an embodiment of the present invention;
fig. 4 is a block diagram of a device for measuring strength of an underframe of an electric cabin according to an embodiment of the invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
At present, in the related technical field, the deformation, damage and damage of the electric power cabin caused by stress in the transportation process can not be quantitatively monitored.
In order to solve the problem, various embodiments of the method for measuring the strength of the chassis of the electric cabin are provided. The method for measuring the strength of the chassis of the electric power room cabin judges whether the chassis of the target cabin body is permanently deformed or not by obtaining the maximum value of the uniformly distributed load and determining the maximum disturbance degree borne by the chassis of the target cabin body and the maximum stress borne by the material of the chassis of the target cabin body per meter, quantificationally processes the deformation of the chassis of the target cabin body, controls the acceptance of the electric power room cabin in the transportation process according to the quantified result, and solves the technical problem that the deformation, damage and damage of the electric power room cabin stressed in the transportation process can not be quantitatively monitored at present.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an apparatus for measuring strength of an underframe of an electric cabin according to an embodiment of the present invention.
The device may be a User Equipment (UE) such as a Mobile phone, a smart phone, a laptop, a digital broadcast receiver, a Personal Digital Assistant (PDA), a PAD, a handheld device, a vehicle mounted device, a wearable device, a computing device or other processing device connected to a wireless modem, a Mobile Station (MS), or the like. The device may be referred to as a user terminal, portable terminal, desktop terminal, etc.
In general, the apparatus comprises: at least one processor 301, a memory 302 and a power pod chassis strength determination method program stored on said memory and executable on said processor, said power pod chassis strength determination method program being configured to implement the steps of the power pod chassis strength determination method as described above.
The processor 301 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and so on. The processor 301 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 301 may also include a main processor and a coprocessor, where the main processor is a processor for processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 301 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content required to be displayed on the display screen. The processor 301 may further include an AI (Artificial Intelligence) processor for processing operations related to the method for determining the strength of the chassis of the electric power compartment, so that the model of the method for determining the strength of the chassis of the electric power compartment can be trained and learned autonomously, thereby improving efficiency and accuracy.
In some embodiments, the terminal may further include: a communication interface 303 and at least one peripheral device. The processor 301, the memory 302 and the communication interface 303 may be connected by buses or signal lines. Various peripheral devices may be connected to communication interface 303 via a bus, signal line, or circuit board. Specifically, the peripheral device includes: at least one of radio frequency circuitry 304, a display screen 305, and a power source 306.
The communication interface 303 may be used to connect at least one peripheral device related to I/O (Input/Output) to the processor 301 and the memory 302. The communication interface 303 is used for receiving the movement tracks of the plurality of mobile terminals uploaded by the user and other data through the peripheral device. In some embodiments, processor 301, memory 302, and communication interface 303 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 301, the memory 302 and the communication interface 303 may be implemented on a single chip or circuit board, which is not limited in this embodiment.
The Radio Frequency circuit 304 is used for receiving and transmitting RF (Radio Frequency) signals, also called electromagnetic signals. The rf circuit 304 communicates with a communication network and other communication devices through electromagnetic signals, so as to obtain the movement tracks and other data of a plurality of mobile terminals. The rf circuit 304 converts an electrical signal into an electromagnetic signal to transmit, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 304 comprises: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a subscriber identity module card, and so forth. Radio frequency circuitry 304 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocols include, but are not limited to: metropolitan area networks, various generation mobile communication networks (2G, 3G, 4G, and 5G), wireless local area networks, and/or WiFi (Wireless Fidelity) networks. In some embodiments, the rf circuit 304 may further include NFC (Near Field Communication) related circuits, which are not limited in this application.
The display screen 305 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. When the display screen 305 is a touch display screen, the display screen 305 also has the ability to capture touch signals on or over the surface of the display screen 305. The touch signal may be input to the processor 301 as a control signal for processing. At this point, the display screen 305 may also be used to provide virtual buttons and/or a virtual keyboard, also referred to as soft buttons and/or a soft keyboard. In some embodiments, the display screen 305 may be one, the front panel of the electronic device; in other embodiments, the display screens 305 may be at least two, which are respectively disposed on different surfaces of the electronic device or in a foldable design; in still other embodiments, the display screen 305 may be a flexible display screen disposed on a curved surface or a folded surface of the electronic device. Even further, the display screen 305 may be arranged in a non-rectangular irregular figure, i.e., a shaped screen. The Display screen 305 may be made of LCD (liquid crystal Display), OLED (Organic Light-Emitting Diode), and the like.
The power supply 306 is used to power various components in the electronic device. The power source 306 may be alternating current, direct current, disposable or rechargeable. When the power source 306 includes a rechargeable battery, the rechargeable battery may support wired or wireless charging. The rechargeable battery may also be used to support fast charge technology.
Those skilled in the art will appreciate that the configuration shown in fig. 1 does not constitute a limitation of the electrical compartment chassis strength determination apparatus and may include more or fewer components than shown, or some components in combination, or a different arrangement of components.
The embodiment of the invention provides a method for measuring the strength of an underframe of an electric power cabin, and referring to fig. 2, fig. 2 is a schematic flow chart of the embodiment of the method for measuring the strength of the underframe of the electric power cabin.
In this embodiment, the method for measuring the strength of the chassis of the electric power cabin comprises the following steps:
s100, acquiring a first uniform load and a second uniform load of a bottom frame of a target cabin; the first uniform load is the uniform load generated by the total weight of the target cabin and the common inertia force generated when the target cabin is lifted upwards, and the second uniform load is the uniform load generated by the longitudinal impact force of the target cabin.
(1) For the first equipartition load. As shown in fig. 3, the schematic diagram of the target nacelle with the dimension W × D × H is lifted upwards.
When obtaining first equipartition load, specifically include:
obtaining a first uniform load of the bottom frame of the target cabin body according to the total weight and the inertia force of the target cabin body when the target cabin body is lifted upwards; the first equispaced load expression is:
d 1 ＝F/l
F＝G+Q
and F is the resultant force corresponding to the total weight and the inertia force when the target cabin body is lifted upwards, l is the length of the sling, G is the total weight when the target cabin body is lifted upwards, and Q is the inertia force when the target cabin body is lifted upwards.
In a preferred embodiment, the expression of the total weight of the target nacelle when hoisted upward is:
G＝G 1 +G 2
wherein G is 1 Is the weight of the cabin body, G 2 The weight of the electrical equipment in the cabin is equal;
in a preferred embodiment, the expression of the inertial force of the target nacelle lifted upwards is:
wherein m is the cabin mass, g is the gravitational acceleration, α is the lifting acceleration of the target cabin lifted upwards, v 1 To the starting velocity, v 2 For the final speed, t is time.
(2) For the second uniform load.
When obtaining the second equipartition load, specifically include:
obtaining a second uniform load of the target cabin according to the longitudinal impact load and the length of the sling when the target cabin is lifted upwards; the second equispaced load expression is:
d 2 ＝P d /l
wherein, P d And the longitudinal impact load when the target cabin body is lifted upwards is obtained.
In a preferred embodiment, the expression of the longitudinal impact load when the target nacelle is hoisted upwards is:
P d ＝G×K d
wherein, K d And the impact coefficient of the target cabin body lifted upwards.
In a preferred embodiment, the expression of the impact coefficient of the target nacelle hoisted upward is:
wherein T is the elastic modulus of the channel steel, S is the cross section area of the sling, g is the gravity acceleration, and v is the hoisting speed.
And S200, determining the maximum value of the uniform load based on the first uniform load and the second uniform load.
Specifically, when the maximum value of the uniform load is determined, the uniform load d is generated according to the weight of the cabin and the inertia force 1 And uniform load d generated by longitudinal impact force 2 The maximum value is selected as the value d, so as to calculate the maximum disturbance degree.
And step S300, judging whether the underframe of the target cabin body is permanently deformed or not according to the maximum value of the uniformly distributed loads.
Specifically, when determining whether the underframe of the target cabin is permanently deformed, the method specifically includes:
obtaining the maximum disturbance degree borne by the bottom frame of the target cabin body according to the maximum value of the uniformly distributed loads, and judging whether the bottom frame of the target cabin body is permanently deformed or not according to the maximum disturbance degree; and/or
And acquiring the maximum stress of the midpoint of the underframe of the target cabin body according to the maximum value of the uniformly distributed loads, and judging whether the underframe of the target cabin body is permanently deformed or not according to the maximum stress of the midpoint.
In this embodiment, when determining whether the underframe of the target cabin is permanently deformed, the maximum disturbance degree may be used for individual determination, or the midpoint maximum stress may be used for individual determination, or the maximum disturbance degree and the midpoint maximum stress may be used together for determination, for example, when the maximum disturbance degree and the midpoint maximum stress simultaneously satisfy the requirement, the cabin is determined to be permanently deformed.
In a real-time manner, the expression of the maximum disturbance degree suffered by the chassis of the target cabin is as follows:
wherein the content of the first and second substances,
d is the maximum value of the uniform load, I is the corresponding stress, f p Is the plastic deformation of the material of the chassis of the target cabin;
on the basis, the step of judging whether the underframe of the target cabin body is permanently deformed specifically comprises the following steps: when f is max ≤f p When the cabin is in use, the underframe of the target cabin cannot be permanently deformed; otherwise the chassis of the target cabin is permanently deformed.
In another embodiment, the expression for the midpoint maximum stress of the undercarriage of the target nacelle is:
wherein M is max Is the maximum force, W, born by the material of the underframe of the target cabin per meter s Is the interface coefficient, sigma, of the material of the chassis of the target cabin p Is the maximum stress of the material of the undercarriage of the target cabin;
on the basis, the judgment is that the underframe of the target cabin body isAnd (5) judging whether the permanent deformation is performed, specifically: when sigma is less than or equal to sigma p In the meantime, the underframe of the target cabin body cannot be permanently deformed; otherwise the chassis of the target cabin is permanently deformed.
The embodiment provides a method for measuring strength of an underframe of an electric power room, which is characterized in that the maximum value of uniformly distributed load is obtained, the maximum disturbance degree borne by the underframe of a target cabin body and the maximum stress borne by the material of the underframe of the target cabin body per meter are determined, whether the underframe of the target cabin body is permanently deformed is judged, the deformation of the underframe of the target cabin body is quantitatively processed, the acceptance of the electric power room in the transportation process is controlled according to the quantitative result, and the technical problem that the deformation, damage and damage of the electric power room in the transportation process cannot be quantitatively monitored at present is solved.
Referring to fig. 4, fig. 4 is a block diagram illustrating a structure of an embodiment of the apparatus for measuring strength of an underframe of an electric cabin according to the present invention.
As shown in fig. 4, an apparatus for measuring strength of an underframe of an electric cabin according to an embodiment of the present invention includes:
the acquiring module 10 is used for acquiring a first uniform load and a second uniform load of the target cabin; the first uniform load is a uniform load generated by the total weight of the target cabin body and the common inertia force generated when the target cabin body is lifted upwards, and the second uniform load is a uniform load generated by the longitudinal impact force of the target cabin body;
the determining module 20 is configured to determine a maximum value of the uniform load based on the first uniform load and the second uniform load;
and the judging module 30 is used for judging whether the target cabin body is permanently deformed or not according to the maximum value of the uniformly distributed load.
Other embodiments or specific implementation manners of the device for measuring strength of the chassis of the electric power cabin can refer to the above method embodiments, and are not described herein again.
Furthermore, an embodiment of the present invention further provides a storage medium, on which a power cabin chassis strength measurement method program is stored, which when executed by a processor implements the steps of the power cabin chassis strength measurement method as described above. Therefore, a detailed description thereof will be omitted. In addition, the beneficial effects of the same method are not described in detail. For technical details not disclosed in embodiments of the computer-readable storage medium referred to in the present application, reference is made to the description of embodiments of the method of the present application. It is determined that, by way of example, the program instructions may be deployed to be executed on one computing device or on multiple computing devices at one site or distributed across multiple sites and interconnected by a communication network.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
It should be noted that the above-described embodiments of the apparatus are merely schematic, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiment of the apparatus provided by the present invention, the connection relationship between the modules indicates that there is a communication connection therebetween, and may be specifically implemented as one or more communication buses or signal lines. One of ordinary skill in the art can understand and implement without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that the present invention may be implemented by software plus necessary general hardware, and may also be implemented by special hardware including special integrated circuits, special CPUs, special memories, special components and the like. Generally, functions performed by computer programs can be easily implemented by corresponding hardware, and specific hardware structures for implementing the same functions may be various, such as analog circuits, digital circuits, or dedicated circuits. However, the implementation of a software program is a more preferable embodiment for the present invention. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a readable storage medium, such as a floppy disk, a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk of a computer, and includes instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
Claims (10)
1. A method for measuring the strength of an underframe of an electric power cabin is characterized by comprising the following steps:
acquiring a first uniform load and a second uniform load of a bottom frame of a target cabin; the first uniform load is a uniform load generated by the total weight of the target cabin and the common inertia force generated when the target cabin is lifted upwards, and the second uniform load is a uniform load generated by the longitudinal impact force of the target cabin;
determining the maximum value of the uniform load based on the first uniform load and the second uniform load;
and judging whether the underframe of the target cabin body is permanently deformed or not according to the maximum value of the uniformly distributed load.
2. The method for measuring the strength of the underframe of the electric power cabin according to claim 1, wherein the step of obtaining the first uniform load comprises:
obtaining a first uniform load of the bottom frame of the target cabin body according to the total weight and the inertia force of the target cabin body when the target cabin body is lifted upwards; the first equispaced load expression is as follows:
d 1 ＝F/l
F＝G+Q
and F is the resultant force corresponding to the total weight and the inertia force when the target cabin body is lifted upwards, l is the length of the sling, G is the total weight when the target cabin body is lifted upwards, and Q is the inertia force when the target cabin body is lifted upwards.
3. The method for measuring the strength of the underframe of the electric room as claimed in claim 2, wherein the expression of the total weight of the target cabin when lifted upwards is:
G＝G 1 +G 2
wherein G is 1 Is the weight of the cabin body, G 2 The weight of the electrical equipment in the cabin is equal;
the expression of the inertia force of the target cabin body lifted upwards is as follows:
wherein m is the cabin mass, g is the gravitational acceleration, α is the lifting acceleration of the target cabin lifted upwards, v 1 To the initial velocity, v 2 To be the final speed, t is time.
4. The method for measuring strength of the underframe of the electric power cabin according to claim 1, wherein the step of obtaining the second uniform load comprises:
obtaining a second uniform load of the target cabin according to the longitudinal impact load and the length of the sling when the target cabin is lifted upwards; the second uniform load expression is as follows:
d 2 ＝P d /l
P d ＝G×K d
wherein, P d Longitudinal impact load, K, when the target cabin is lifted upwards d And the impact coefficient of the target cabin body lifted upwards is T, the elastic modulus of the channel steel, the sectional area of the sling, g, the gravitational acceleration and v, the lifting speed.
5. The method for measuring the strength of the underframe of the electric room cabin according to claim 1, wherein the step of judging whether the underframe of the target cabin is permanently deformed according to the maximum uniformly distributed load comprises the following steps:
obtaining the maximum disturbance degree of the underframe of the target cabin according to the maximum value of the uniformly distributed load, and judging whether the underframe of the target cabin is permanently deformed or not according to the maximum disturbance degree; and/or acquiring the maximum stress of the midpoint of the underframe of the target cabin body according to the maximum value of the uniformly distributed loads, and judging whether the underframe of the target cabin body is permanently deformed or not according to the maximum stress of the midpoint.
6. The method for measuring the strength of the underframe of the electric room cabin according to claim 5, wherein the expression of the maximum disturbance degree of the underframe of the target cabin is as follows:
wherein, the first and the second end of the pipe are connected with each other,
d is the maximum value of the uniform load, I is the corresponding stress, f p Is the plastic deformation amount of the material of the underframe of the target cabin body;
the step of judging whether the chassis of the target cabin body is permanently deformed specifically comprises the following steps: when f is max ≤f p In the meantime, the underframe of the target cabin body cannot be permanently deformed; otherwise the underframe of the target cabin is permanently deformed.
7. The method for measuring the strength of the underframe of the electric room cabin according to claim 5, wherein the expression of the maximum stress of the midpoint of the underframe of the target cabin is as follows:
wherein M is max Is the maximum force, W, born by the material of the underframe of the target cabin per meter s Is the interface coefficient, sigma, of the material of the chassis of the target cabin p Is the maximum stress of the material of the undercarriage of the target cabin;
the step of judging whether the chassis of the target cabin body is permanently deformed specifically comprises the following steps: when sigma is less than or equal to sigma p When the cabin is in use, the underframe of the target cabin cannot be permanently deformed; otherwise the chassis of the target cabin is permanently deformed.
8. The utility model provides an electric power cabin chassis intensity survey device which characterized in that, electric power cabin chassis intensity survey device includes:
the acquisition module is used for acquiring a first uniform load and a second uniform load of the target cabin; the first uniform load is a uniform load generated by the total weight of the target cabin body and the common inertia force generated when the target cabin body is lifted upwards, and the second uniform load is a uniform load generated by the longitudinal impact force of the target cabin body;
the determining module is used for determining the maximum value of the uniform load based on the first uniform load and the second uniform load;
and the judging module is used for judging whether the target cabin body is permanently deformed or not according to the maximum value of the uniformly distributed load.
9. The utility model provides an electric power cabin chassis intensity measurement equipment which characterized in that, electric power cabin chassis intensity measurement equipment includes: a memory, a processor and a power cabin chassis strength measurement method program stored on the memory and executable on the processor, the power cabin chassis strength measurement method program when executed by the processor implementing the steps of the power cabin chassis strength measurement method as claimed in any one of claims 1 to 7.
10. A storage medium having stored thereon a power pod chassis strength measurement method program that, when executed by a processor, implements the steps of the power pod chassis strength measurement method of any of claims 1-7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210990844.XA CN115356215A (en) | 2022-08-17 | 2022-08-17 | Method, device, equipment and storage medium for measuring strength of underframe of electric power cabin |
| PCT/CN2022/113802 WO2024036646A1 (en) | 2022-08-17 | 2022-08-22 | Method, apparatus and device for measuring strength of underframe of electrical cabin, and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210990844.XA CN115356215A (en) | 2022-08-17 | 2022-08-17 | Method, device, equipment and storage medium for measuring strength of underframe of electric power cabin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115356215A true CN115356215A (en) | 2022-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210990844.XA Pending CN115356215A (en) | 2022-08-17 | 2022-08-17 | Method, device, equipment and storage medium for measuring strength of underframe of electric power cabin |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115356215A (en) |
| WO (1) | WO2024036646A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010181342A (en) * | 2009-02-06 | 2010-08-19 | Bridgestone Corp | Device and method for estimating deformation behavior of rubber material |
| CN106055782B (en) * | 2016-05-27 | 2019-08-30 | 中铁第四勘察设计院集团有限公司 | A kind of constructing tunnel escape capsule body limited strength member analog analysing method |
| CN112577827B (en) * | 2020-12-02 | 2022-03-29 | 天津大学 | Test method for simulating uniform load of pipeline in deepwater environment |
| CN114912331A (en) * | 2022-06-13 | 2022-08-16 | 湖北三江航天红阳机电有限公司 | Cabin reinforcing rib optimization method, device, equipment and medium |
-
2022
- 2022-08-17 CN CN202210990844.XA patent/CN115356215A/en active Pending
- 2022-08-22 WO PCT/CN2022/113802 patent/WO2024036646A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024036646A1 (en) | 2024-02-22 |
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