CN117235914A - CATIA parameterization-based plane fixed-wheel steel gate design method - Google Patents
CATIA parameterization-based plane fixed-wheel steel gate design method Download PDFInfo
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Abstract
The invention discloses a design method of a CATIA parameterized plane fixed-wheel steel gate, which comprises the following steps: s1: creating a three-dimensional model of a door leaf, a fixed wheel, a water stop and a side wheel, and establishing a corresponding relation between the structural size of the product part and parameters in a parameter list; s2: assembling the fixed wheel, the water stop and the side wheel product components and the door leaves according to the positioning reference by taking the door leaves as the reference to obtain a final assembly model; s3: establishing a design table at the level of the plane fixed wheel steel gate assembly model, and associating the control parameters in each part with the design table to form a series of plane fixed wheel steel gate models; s4: inputting different door leaves and fixed wheel design parameters into Excel to finish the update of the three-dimensional model, and obtaining the three-dimensional model of the steel gate with different structural sizes; s5: and (3) carrying out statics analysis on the steel gate, and further correcting the design parameters in the step S4. The invention can realize the rapid three-dimensional modeling of the plane fixed wheel steel gate product, and improves the design efficiency and quality.
Description
Technical Field
The invention relates to the technical field of steel gate design, in particular to a CATIA parameterized plane fixed-wheel steel gate design method.
Background
The plane fixed-wheel steel gate is used as one of important equipment of the steel gate of the hydraulic and hydroelectric engineering, is widely applied to various hydraulic and hydroelectric engineering, and plays an important role in running and scheduling of the engineering. The traditional steel gate design basically goes through the processes from data collection and analysis, gate selection and arrangement, gate body and part design calculation to drawing and the like. The process is complex in calculation and large in drawing modification quantity, and the working efficiency and quality of designers are reduced. With the development of computer technology, the steel gate design by utilizing the three-dimensional modeling software can make the whole design process more efficient and accurate, thereby improving the design efficiency and quality.
CATIA is interactive CAD/CAE/CAM integrated software under the flag of French Daxol company, provides all industrial design flow schemes from project early scheme arrangement stage, specific design, analysis, simulation and assembly to maintenance, and is widely applied to the fields of automobiles, aerospace, ships, general machinery and the like. The CATIA parameterized modeling capability is excellent, the characteristics of the metal structure design specialty are relatively matched, meanwhile, the knowledge engineering module is combined, the digital information required in the process of designing the graphic elements can be related through parameters, the functions of model driving and the like can be realized by modifying the parameters, the model generation and modification speed is greatly improved, and therefore, the method has high application value in product series design, similar design and optimized design.
In addition, the traditional finite element analysis flow mostly leads the built three-dimensional model into finite element calculation analysis software for processing through an intermediate file format, but the change of the structural digital model cannot be real-time embodied in the finite element model, and cannot be automatically updated, especially the structural design scheme and the boundary condition of the complex integral bearing component are very complicated to change, the geometric is needed to be led in again each time, the grid is re-divided, the finite element model is re-built for calculation analysis, and the model stress change caused by the structural size change cannot be responded in time.
Disclosure of Invention
The invention aims to overcome the defects of the background technology, and provides a planar fixed-wheel steel gate design method based on CATIA parameterization, which realizes rapid three-dimensional modeling of a planar fixed-wheel steel gate product, greatly reduces the number of input parameters required by a user through a design table mode, checks the structural parameters of steel gate leaves and fixed wheels by means of finite element analysis, optimizes the traditional two-dimensional planar design method, and improves the design efficiency and quality.
In order to achieve the above purpose, the design method of the CATIA parameterized plane fixed wheel steel gate provided by the invention comprises the following steps:
s1: creating a three-dimensional model of the door leaf, the fixed wheel, the water stop and the side wheel, and establishing a corresponding relation between the structural dimensions of the door leaf, the fixed wheel, the water stop and the side wheel product components and parameters in a parameter list to realize the parameterization of the component model;
s2: assembling the fixed wheel, the water stop and the side wheel product components and the door leaves according to the positioning reference by taking the door leaves as the reference to obtain a final assembly model;
s3: establishing a design table at the level of the plane fixed wheel steel gate assembly model, and associating the control parameters in each part with the design table to form a series of plane fixed wheel steel gate models;
s4: the user inputs different door leaves and fixed wheel design parameters into Excel to finish the update of the three-dimensional model, and the three-dimensional model of the steel gate with different structural sizes is obtained;
s5: and (3) introducing the steel gate three-dimensional model designed in the step (S4) into a CATIA finite element analysis module, preprocessing the gate leaves and the fixed wheels of the steel gate in the CATIA finite element analysis module, then carrying out statics analysis on the steel gate, judging whether the design parameters of the gate leaves and the fixed wheels meet the requirement of the material strength allowable stress value, and further correcting the design parameters in the step (S4).
In a preferred embodiment, in the step S1, the door leaf includes the following components: the lifting device comprises a panel, a main beam upper flange, a vertical partition web plate, a vertical partition flange, a bottom secondary beam, a side beam web plate, a side beam flange, web plate rib plates, lifting lug plates and lifting lug side plates;
the fixed wheel comprises the following parts: the device comprises rollers, a wheel shaft, a shaft sleeve, a shaft end check ring and a shaft end baffle;
the water stop comprises the following parts: top side water stop, bottom water stop pressing plate, connecting rubber, side water stop backing plate, top water stop backing plate, side water stop pressing plate and top water stop pressing plate.
The side wheel comprises the following parts: the wheel seat comprises a side wheel seat, a side wheel shaft, a shaft end baffle and a roller.
In the step S2, the water stop and the door leaf are attached to the surface of the door leaf panel through a water stop pad, and are assembled in a symmetrical manner with the center line of the door leaf; the fixed wheel and the door leaf are overlapped with the axis of the door leaf boundary beam positioning hole through a fixed wheel shaft, and meanwhile, the shaft end retainer ring is assembled in a manner of being attached to the boundary beam web plate; the side wheels are attached to the lower flange of the door She Zhuliang through the side wheel base, and the bolt hole axis is overlapped to be assembled.
In a preferred embodiment, in the step S4, if the design size does not meet the requirement, the numerical value of the specified parameter is modified in Excel by editing the table in CATIA, and the CATIA operation interface is returned, so that the total assembly model is updated, and a three-dimensional model with a specific size is generated.
In a preferred embodiment, in step S5, steel gate leaves and stator wheels are subjected to preprocessing in the CATIA finite element analysis module to generate a grid, add constraints, and apply load.
In a preferred embodiment, in the step S5, the steel gate is subjected to a statics analysis, and finally a stress cloud image, a deformation cloud image, and a maximum stress value of the gate leaf and the stator are generated.
In the preferred embodiment, in the step S5, whether the design dimensions of the gate leaf and the stator in the step S4 are reasonable is determined according to the statics analysis result, if the maximum stress value suffered by the structure exceeds the allowable stress value of the material strength, the step S4 is required to be returned to change the dimensions of the gate leaf and the stator of the steel gate, and then the step S returns to the CATIA finite element analysis module to update the calculation result until the design requirement is met.
Compared with the prior art, the invention has the following advantages:
firstly, the parameterized three-dimensional design of the plane fixed wheel gate is realized, the parameterized three-dimensional design of the plane fixed wheel steel gate is performed according to different parts based on the CATIA parameterized modeling function, and then the assembly is performed, so that the three-dimensional modeling design efficiency is greatly improved.
Secondly, the invention realizes the finite element analysis design of the plane fixed wheel steel gate, utilizes the CATIA finite element analysis module to carry out finite element check on the gate leaf structure and the fixed wheel structure, and compared with a classical plane hypothesis checking method, the three-dimensional finite element analysis can better reflect the actual stress condition of the plane fixed wheel steel gate, simultaneously forms a design closed loop, and optimizes the traditional design flow of the plane fixed wheel steel gate.
Thirdly, the three-dimensional modeling module and the mechanical analysis module can be connected in a seamless manner through the CATIA, so that the problems of compatibility and repeated definition possibly caused by the fact that the 3D model is imported into other analysis are solved, a closed-loop effect can be achieved on structural design of a product, and design efficiency is improved.
Drawings
FIG. 1 is a schematic flow chart of a design method of a CATIA parameterized plane fixed wheel steel gate according to the invention;
FIG. 2 is a parameterized three-dimensional assembly model diagram of a planar fixed wheel steel gate in accordance with an embodiment of the present invention;
FIG. 3 is a finite element calculation result diagram of a gate leaf of a planar fixed wheel steel gate in an embodiment of the invention;
FIG. 4 is a graph of the finite element calculation result of the fixed wheel of the plane fixed wheel steel gate according to the embodiment of the invention;
in the figure: 1-door leaf, 2-fixed wheel, 3-side wheel and 4-water stop.
Detailed Description
The following describes the embodiments of the present invention in detail with reference to examples, but they are not to be construed as limiting the invention. While at the same time becoming clearer and more readily understood by way of illustration of the advantages of the present invention.
As shown in fig. 1, the CATIA parameterized plane fixed wheel steel gate design method based on the invention comprises the following steps:
step S1: and creating a three-dimensional model of the gate leaf, the fixed wheel, the water stop and the side wheel, wherein each part is a product in the CATIA, and a subset of the parts comprise parts. Wherein, the door leaf product includes following spare part: the lifting device comprises a panel, a main beam upper flange, a vertical partition web plate, a vertical partition flange, a bottom secondary beam, a side beam web plate, a side beam flange, web plate rib plates, lifting lug plates and lifting lug side plates; the fixed wheel product comprises the following parts: the device comprises rollers, a wheel shaft, a shaft sleeve, a shaft end check ring and a shaft end baffle; the water-stopping product comprises the following parts: top side water stop, bottom water stop pressing plate, connecting rubber, side water stop backing plate, top water stop backing plate, side water stop pressing plate and top water stop pressing plate; the side wheel product comprises: the wheel seat comprises a side wheel seat, a side wheel shaft, a shaft end baffle and a roller. And establishing a corresponding relation between the main structural size of the parts under each product and parameters in the parameter list, so as to realize the generation of the parameter-driven three-dimensional model.
Step S2: and (3) sequentially assembling the fixed wheels, the water stop and the side wheels on the door leaf structure by taking the door leaf product as a reference to form a plane fixed wheel gate assembly model. The water stop and the door leaf are assembled in a mode of being symmetrical to the central line of the door leaf by attaching a water stop base plate to the surface of the door leaf plate; the fixed wheel and the door leaf are assembled in a mode that the fixed wheel shaft coincides with the axis of the positioning hole of the door leaf boundary beam and the shaft end retainer ring is attached to the boundary beam web; the side wheels are assembled with the door leaves through the way that the side wheel bases are attached to the lower flange of the door She Zhuliang and the axes of the bolt holes are overlapped.
Step S3: and (3) establishing a design table at the level of the plane fixed wheel steel gate assembly model, and associating main control parameters in each part with the design table to form a series of plane fixed wheel steel gate models with a series of sizes, wherein the plane fixed wheel steel gate parameterization design table is shown in table 1.
TABLE 1
Step S4: the designer can double-click on a certain row in table 1 in CATIA to generate planar fixed wheel steel gates of different sizes. If the related design size in table 1 does not meet the requirement, the designer can modify the numerical value of the specified parameter in Excel by editing the table in CATIA, and return to the CATIA operation interface, so as to update the total assembly model, and also can generate a three-dimensional model with a specific size. The design method greatly improves the design efficiency of the three-dimensional model of the plane fixed wheel steel gate.
Step S5: the three-dimensional model designed in the step S4 is imported into a CATIA finite element analysis module (Generative Structural Analysis), and the gate leaves and the stator wheels of the steel gate are subjected to pretreatment in the CATIA finite element analysis module, namely, grid generation, constraint addition, load application and the like are performed, then statics calculation analysis is performed, and finally, stress cloud charts, deformation cloud charts and maximum stress values of the gate leaves and the stator wheels are generated, see fig. 3 and 4. Judging whether the design sizes of the gate leaf and the fixed wheel structure in the step S4 are reasonable or not according to the analysis result, if the maximum stress value received by the structure exceeds the allowable stress value of the material strength, returning to the step S4 to change the sizes of the gate leaf and the fixed wheel of the steel gate, and then returning to the finite element analysis module to update the calculation result until the design requirement is met.
According to the design method, the parameter-driven plane fixed wheel steel gate model is used for generating, and the CATIA finite element analysis module is used for calculating and checking the gate vane and the fixed wheel, so that closed-loop design is realized, the design efficiency is improved, and the design flow is simplified.
The foregoing is merely exemplary embodiments of the present invention, and it should be noted that any changes and substitutions that may be easily contemplated by those skilled in the art within the scope of the present invention are intended to be covered by the present invention, and the remaining non-detailed description is included in the prior art.
Claims (7)
1. A design method of a planar fixed-wheel steel gate based on CATIA parameterization is characterized by comprising the following steps: the method comprises the following steps:
s1: creating a three-dimensional model of the door leaf, the fixed wheel, the water stop and the side wheel, and establishing a corresponding relation between the structural dimensions of the door leaf, the fixed wheel, the water stop and the side wheel product components and parameters in a parameter list to realize the parameterization of the component model;
s2: assembling the fixed wheel, the water stop and the side wheel product components and the door leaves according to the positioning reference by taking the door leaves as the reference to obtain a final assembly model;
s3: establishing a design table at the level of the plane fixed wheel steel gate assembly model, and associating the control parameters in each part with the design table to form a series of plane fixed wheel steel gate models;
s4: the user inputs different door leaves and fixed wheel design parameters into Excel to finish the update of the three-dimensional model, and the three-dimensional model of the steel gate with different structural sizes is obtained;
s5: and (3) introducing the steel gate three-dimensional model designed in the step (S4) into a CATIA finite element analysis module, preprocessing the gate leaves and the fixed wheels of the steel gate in the CATIA finite element analysis module, then carrying out statics analysis on the steel gate, judging whether the design parameters of the gate leaves and the fixed wheels meet the requirement of the material strength allowable stress value, and further correcting the design parameters in the step (S4).
2. The CATIA parameterized planar fixed wheel steel gate design method based on claim 1, wherein: in the step S1, the door leaf includes the following components: the lifting device comprises a panel, a main beam upper flange, a vertical partition web plate, a vertical partition flange, a bottom secondary beam, a side beam web plate, a side beam flange, web plate rib plates, lifting lug plates and lifting lug side plates;
the fixed wheel comprises the following parts: the device comprises rollers, a wheel shaft, a shaft sleeve, a shaft end check ring and a shaft end baffle;
the water stop comprises the following parts: top side water stop, bottom water stop pressing plate, connecting rubber, side water stop backing plate, top water stop backing plate, side water stop pressing plate and top water stop pressing plate;
the side wheel comprises the following parts: the wheel seat comprises a side wheel seat, a side wheel shaft, a shaft end baffle and a roller.
3. The CATIA parameterized planar fixed wheel steel gate design method based on claim 2, wherein: in the step S2, the water stop and the door leaf are attached to the surface of the door leaf surface plate through a water stop base plate, and are assembled in a mode of being symmetrical to the center line of the door leaf; the fixed wheel and the door leaf are overlapped with the axis of the door leaf boundary beam positioning hole through a fixed wheel shaft, and meanwhile, the shaft end retainer ring is assembled in a manner of being attached to the boundary beam web plate; the side wheels are attached to the lower flange of the door She Zhuliang through the side wheel base, and the bolt hole axis is overlapped to be assembled.
4. A CATIA parameterized planar fixed wheel steel gate design method according to claim 3, wherein: in step S4, if the design size does not meet the requirement, modifying the numerical value of the specified parameter in Excel by means of CATIA editing table, and returning to CATIA operation interface, thereby updating the total assembly model and generating the three-dimensional model with specific size.
5. The CATIA parameterized planar fixed wheel steel gate design method based on claim 4, wherein: in the step S5, preprocessing is performed on the steel gate leaves and fixed wheels in the CATIA finite element analysis module, so as to generate grids, add constraints and apply loads.
6. The CATIA parameterized planar fixed wheel steel gate design method based on claim 5, wherein: in the step S5, the steel gate is subjected to statics analysis, and finally a stress cloud picture, a deformation cloud picture and a maximum stress value of the gate leaf and the fixed wheel are generated.
7. The CATIA parameterized planar fixed wheel steel gate design method based on claim 6, wherein: in the step S5, whether the design sizes of the gate leaf and the stator in the step S4 are reasonable is determined according to the statics analysis result, if the maximum stress value received by the structure exceeds the allowable stress value of the material, the step S4 is required to be returned to change the sizes of the gate leaf and the stator of the steel gate, and then the step S returns to the CATIA finite element analysis module to update the calculation result until the design requirement is met.
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