转向盘动力吸振器稳健性设计研究与应用

Research and application of robust design of a steering wheel dynamic vibration absorber

为解决怠速时转向盘振动大问题,用基于稳健性的设计方法,开发了动力吸振器(dynamic vibration absorber,DVA)。采用最小二乘迭代法,识别出动力吸振器安装位置的等效参数,运用基于6sigma多目标稳健性优化方法,进行动力吸振器的参数的优化。在样件制作前用有限元仿真预测其固有频率,用激振台测出其固有频率。装车试验的试验结果表明,基于6sigma稳健设计的动力吸振器具有更好的可靠性,可有效地降低转向盘的振动。

In order to reduce the idle vibration of steering wheels,a dynamic vibration absorber(DVA)based on the robust design method was designed.First,the dynamic vibration absorber equivalent parameters at mounting point were identified by the least squares iteration method.Then,the 6sigma multi-objective robust optimization method was used to optimize dynamic vibration absorber parameters.The natural frequency was predicted by finite element simulation before the prototype was produced,and its natural frequency was measured by the excitation table.The test results show that the dynamic vibration absorber based on the 6sigma robust design has better reliability and can effectively reduce steering wheel vibration.