Finite element simulation analysis and performance optimization method for non-pneumatic tire

Abstract

The invention belongs to the technical field of tire performance optimization, and discloses an inflation-free tire finite element simulation and performance optimization method which comprises the following steps: fitting tire rubber uniaxial tensile test data based on ABAQUS professional software, establishing a finite element model of an inflation-free tire, and carrying out finite element analysis on a supporting structure and a tread part of the tire. By increasing the arc radius of the non-pneumatic tire hole and reducing the number of the non-pneumatic tire supporting structures, the stress-strain concentration phenomenon can be effectively weakened, the fatigue damage probability of the supporting structures is reduced, and the performance of the non-pneumatic supporting structuresis improved. The hard elastomer layer with certain width and thickness is added between the supporting structure and the tread, so that the performance of the supporting structure of the non-pneumatic tire can be improved, the ground contact stress is uniformly distributed, and the ground contact performance of the non-pneumatic tire is improved. The optimal combination of the non-pneumatic tireis obtained by designing an orthogonal test, and the supporting structure and the grounding performance of the optimal combination non-pneumatic tire are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of tire performance optimization, in particular to a method for finite element simulation analysis and performance optimization of an air-free tire. Background technique [0002] Currently, the closest prior art: [0003] The finite element analysis method is an important method to solve various complex physical and mathematical problems. The basic process of solving the problem consists of three parts: the discretization of the analysis object, the finite element solution and the post-processing of the calculation results. The finite element analysis method is to divide the continuous research object into a finite number of discrete units, assume an approximate solution for each discrete unit, and then deduce and solve the general satisfaction conditions of this domain, and finally obtain the solution of the problem. [0004] The finite element analysis method not only has high calculation accuracy, but al...

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Problems solved by technology

[0011] (1) When loaded, the initial air-free tire produces stress and strain concentration at the support structure, which causes the support structure to be easily damaged at the force concentration part

[0012] (2) Due to the existence of the hole structure, the distribution of the ground stress of the C-type non-inflatable tire is uneven, which will lead to abnormal wear of the tread of the non-inflatable tire. Phenomenon, resulting in the reduction of the non-pneumatic tire ground contact area, poor ground performance, thereby reducing the stability, safety and controllability of the non-pneumatic tire driving

[0013] (3) There is a problem of uneven distribution of the ground stress of the initial air-free tire

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