基于田口方法的汽车仪表板杂物箱把手结构优化

Optimization of Structure of Auto Instrument Panel Glove Box Knob Based on Taguchi Method

摘要: 为了研究汽车仪表板杂物箱把手满足重载荷强度的最优结构，本文以田口方法为分析思路，仿真软件HYPERMESH 13.0和LS-DYNA为主要研究工具，确定理想功能、噪音因素和可控因素，建立内/外正交表和静态受力有限元模型。通过对信噪比(S/N，即对把手重载强度起到的有用作用/有害作用)和特性值(y，即把手能够承载的最大力值)的分析，找出影响杂物箱把手重载荷强度的关键因素和最优化组合，优化后的模拟结果为364N，大于标准值245N。把手重载荷强度提升了62%，把手结构的稳健性提升了79%。

Abstract: In order to study the optimal structure of glove box knob for meeting heavy load test, with Taguchi Method and finite model software HYPERMESH 13.0 and LS-DYNA, the ideal function, noise factors and control factors are defined, inside/outside orthogonal array and static stress finite model are established. By analyzing signal-to-noise ratio (S/N, which is the ratio of useful function/harmful function to knob heavy load test) and property value(y, which is the maximal force value that knob can bear), the key factors and optimal combination are found. The analyzing result is 364N which is bigger than 245N. The heavy load stress increases by 62%. The robustness of structure of knob increases by 79%.