塑料尾门耐惯性力分析及结构优化

Plastic Tailgate Inertia Resistance Analysis and Structural Optimization

根据GB 15086—2013的试验方法和技术要求,以塑料尾门为研究对象,建立有限元分析模型,进行了耐惯性力分析和结构优化。首先,基于塑料尾门的结构设计可行性,利用尾门结构耐惯性力仿真分析模型对塑料尾门的失效运动模式以及结构应力进行了预测和分析;其次,采用增加尾门内板载荷传力路径和局部料厚的结构优化方案,解决了塑料尾门在惯性载荷下的结构失效和开裂问题;最后,通过台架试验验证了塑料尾门优化方案的可靠性以及仿真分析模型的准确性。

Based on the experimental method and technical requirements of GB 15086—2013,a finite element analysis model was established to analyze inertial force resistance and optimize plastic tailgate structure.Firstly,the plastic tailgate structure failure motion mode and stress of inertial force resistance was predicted and analyzed based on the structural design feasibility of plastic tailgate by using finite element analysis model simulation;secondly,the issue of structural failure and cracking of plastic tailgate under inertial load were solved by adopting the method of structural optimization scheme through increasing the load transmission path of the tailgate inner plate and strengthening the local material thickness.Finally,the reliability of the optimization scheme of the plastic tailgate and the accuracy of the simulation analysis model were verified by the bench test.