Shielded gate guide shoe three-dimensional sliding friction characteristic simulation analysis method based on finite element
A sliding friction and simulation analysis technology, applied in special data processing applications, instruments, calculations, etc., can solve the problems of small amount of calculation, inability to describe dynamic contact problems, and inability to fully simulate the actual contact characteristics of friction pairs, etc., to achieve convenient analysis Effect
Inactive Publication Date: 2012-11-28
宁波中车时代电气设备有限公司
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At present, the finite element analysis of frictional contact mainly includes two-dimensional static and dynamic contact analysis, and three-dimensional static contact analysis. Local contact analysis of surface contact state, such as material surface crack analysis, contact analysis with roughness and microscopic surface contact failure analysis, etc., but two-dimensional analysis is only a simplified analysis method, which cannot fully simulate the actual contact characteristics of friction pairs, while three-dimensional Static analysis results cannot describe more complex dynamic contact problems
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[0021] The present invention will be further described below in conjunction with drawings and embodiments.
[0022] Embodiment, the geometric model of the guide shoe mechanism in the shielded door system after simplification is as follows figure 1 As shown, the guide shoe mechanism includes a guide groove 1 and a guide shoe slider 2, and the guide shoe slider 2 slides on the guide groove 1, and the structural parameters are shown in Table 1.
[0023] Using the finite element software ANSYS to analyze the three-dimensional dynamic friction characteristics of the guide shoe mechanism, the analysis process is as follows image 3 As shown, the analysis steps include:
[0024] a. Establish the finite element model of the guide shoe mechanism: adopt the parametric modeling method, select the thermal-structural coupling unit solid226 with six sides and 20 nodes, and establish the geometric models of the guide shoe slider and the guide groove, as shown in figure 1 , and set the mat...
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The invention discloses a shielded gate guide shoe three-dimensional sliding friction characteristic simulation analysis method based on a finite element. The guide shoe mechanism comprises a guide slot and a guide shoe slider, wherein the guide shoe slider slides on the guide slot. The analysis method comprises the following steps: a, establishing a finite element model of the guide shoe mechanism; b, dividing the grids of the finite element model of the guide shoe mechanism; c, carrying out contact setting; d, solving process control; e, setting a load step and a boundary condition; and f, extracting the analysis result subjected to simulation calculating analysis. According to the method, a parameterization finite element analysis model of the guide shoe sliding friction pair in a shielded gate system can be established by using an ANSYS software, the structural characteristics, mechanical characteristics and thermal characteristics of the guide shoe mechanism friction pair in the three-dimensional sliding process can be analyzed in a coupling manner by setting the contact parameter of the model, algorithm setting, and applying load and boundary condition, the defect of single characteristic analysis is overcome, and the calculating convergence and accuracy can be effectively controlled and analyzed.
Description
technical field [0001] The invention relates to a simulation analysis method of a screen door guide shoe mechanism, in particular to a three-dimensional dynamic simulation analysis method of a screen door guide shoe mechanism. Background technique [0002] Three-dimensional sliding friction finite element analysis is a highly nonlinear dynamic contact problem. The key technology and difficulty of this analysis are mainly the convergence and accuracy control of the analysis. At present, the finite element analysis of frictional contact mainly includes two-dimensional static and dynamic contact analysis, and three-dimensional static contact analysis. Local contact analysis of surface contact state, such as material surface crack analysis, contact analysis with roughness and microscopic surface contact failure analysis, etc., but two-dimensional analysis is only a simplified analysis method, which cannot fully simulate the actual contact characteristics of friction pairs, while...
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IPC IPC(8): G06F17/50
Inventor 应寅琼李成贺文江虹苏会强
Owner 宁波中车时代电气设备有限公司
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