Piston mesh division structure

A meshing and piston technology, applied in the field of piston CAE analysis, can solve the problems of low efficiency of CAE analysis, long analysis and solution time, and difficulty in obtaining accurate results, and achieves the effect of easy convergence, high quality and fast solution speed.

Inactive Publication Date: 2014-03-05
湖南江滨机器(集团)有限责任公司
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Problems solved by technology

[0003] At present, when performing CAE analysis on pistons, most of the meshes are automatically and quickly generated by software when dividing the pre-processing meshes of the pistons. This meshing method can only generate tetrahedral meshes. It is difficult to get accurate r...

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  • Piston mesh division structure

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Embodiment Construction

[0015] The invention discloses a piston grid division structure, which improves the solution speed while ensuring the accuracy of CAE analysis results.

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0017] Such as figure 1 as shown, figure 1 It is a schematic diagram of the grid distribution of the grid division structure in the piston CAE analysis provided by the present invention.

[0018] The present invention provides a piston grid division structure, which is used for CAE analysis of the piston. T...

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Abstract

The invention provides a piston mesh division structure which is used for conducting CAE analysis on a piston. A mesh enveloping model of the piston comprises a first mesh model and a second mesh model, wherein the first mesh model envelops a piston body, and the second mesh model envelops a piston pin hole part of the piston body. The second mesh model is a hexahedral mesh enveloping model built on the piston pin hole part. CAE analysis meshes on the piston pin hole part are divided into hexahedral meshes, the hexahedral meshes are high in quality and uniform in density, contact analysis operation can be easily converged, the number of the hexahedral meshes is smaller than the number of tetrahedral meshes, and therefore high processing speed can be acquired, a more accurate analysis result can be acquired, and the solving speed of CAE analysis of the piston is higher.

Description

technical field [0001] The invention relates to the technical field of piston CAE analysis, and more specifically, relates to a piston grid division structure. Background technique [0002] The piston is one of the key components of the internal combustion engine, and its working conditions are directly related to the working reliability and durability of the internal combustion engine. The structure of the piston and the working environment are very complex, so the finite element analysis of the coupled stress field of the piston is carried out , it is of great significance to improve its thermal load and comprehensive stress distribution. [0003] At present, when performing CAE analysis on pistons, most of the meshes are automatically and quickly generated by software when dividing the pre-processing meshes of the pistons. This meshing method can only generate tetrahedral meshes. It is difficult to obtain accurate results during analysis. [0004] In order to obtain mor...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 胡定永朱达旦党飞鹏代凌峰
Owner 湖南江滨机器(集团)有限责任公司
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