Method for forming annular deformation parameterized rubber grid suitable for large deformation

Abstract

The invention discloses a method for forming an annular deformation parameterized rubber grid suitable for large deformation. The method comprises the following steps of: sectioning an entire model into a left region, a middle region and a right region; sectioning the left region and the right region which produce large deformation easily and have serious grid distortion into four pentagon-like regions in all; performing parameterized grid setting at each local pentagon-like region; and making the number of grids on each side meet the following requirements: a, b, c, d and e are greater than 0 and e+b is more than or equal to a+2c+d / 2, wherein the grid layout and the grid state after the forming of the grid, which meet the requirements of the formula, form the annular pentagon-like deformation rubber grid with different grid densities and the same grid layout through parameterized adjustment of the number of the grids according to the requirements on the size of the model and the analysis quality.

Description

technical field The invention relates to a molding method of rubber, in particular to a ring-type, parameterized full quadrilateral rubber grid molding method that can adapt to large deformation. Using this mesh forming method, the rubber model with complex structure can be sculpturally subdivided, and then the local area can be generated based on ring-type 5-type deformation and parametric mesh to meet the requirements of large deformation, so that large deformation can be achieved. The solution analysis was successfully completed. Background technique The rubber material has a small modulus of elasticity, a large amount of deformation under load, and a high degree of nonlinearity. Nowadays, rubber molding is used to simulate and fit the deformation behavior of rubber materials (or rubber elastic components) using finite element technology, but from the perspective of use, when using finite element technology to simulate the deformation behavior of rubber materials (or rub...

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to overcome the shortcomings of the existing rubber material unit grid forming method, and propose a ring-like pentagonal deformation and parameterization that can better meet the large deformation requirements of rubber materials and reduce grid distortion and hourglass formation. Forming method of rubber unit mesh

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