The Finite Element Simulation And Optimization For The Rear Wall Pillar

Automotive interior parts are important components of automotive parts, the level of itsmanufacturing process reflects a country’s level in auto parts manufacturing in the very greatdegree. With the rapid development of the automotive industry, car manufacturers pay moreand more attention to the development of automotive interior parts. However, the productionof automotive interior parts started relatively late in China, and there is a large gap betweenChina and abroad in design and production. The reason is automotive interior parts areproduced by experience and repeated experiments in our country, cause the process to beunreasonable and unstable product quality and lack of market competitiveness. How to raisethe level of production of automotive interior parts, improved the process parameters ofautomotive interior parts and reduced tooling costs become an important issue in China’sautomotive interior parts industry that must be solved. Therefore, there is an urgent need tosimulation the forming process for automotive interior parts, and optimize process parametersand mold structure to reduce production costs, improve product quality and marketcompetitiveness. For this reason, polymer materials forming principle, process parametersoptimization theory and finite element analysis are adopted to simulation the molding processand optimization process parameters and optimization mold structure for the rear wall pillarof Plum school bus. Specific studies are as follows:(1) Summarizes vacuum forming principle and vacuum forming mold design theory toprovide the theoretical support for this article.(2) Using the Polyflow software to carry out finite element simulation for the rear wallpillar of Plum school bus. Then the plate geometry in different time and the thicknessdistribution of the rear wall pillar products are got.(3) Based on finite element simulation and analysis to optimization the blowing time andblowing pressure，and exploring their effect on thickness distribution of the rear wall pillar ofPlum school bus.(4) Carries on the analysis of accepting force on mold using the ANSYS Workbenchsoftware, in the foundation of analysis of accepting force establishes the structuraloptimization model of the rear wall pillar of Plum school bus, optimization the structural ofthe mold under the condition of guarantee mould’s strength and stiffness and others.In conclusion, the research in this paper provide a theoretical basis for select theprocess parameters of the rear wall pillar of Plum school bus and decreasing the mold weight,also give a reference for improve the process parameters of vacuum forming and the development of new automotive interior parts.