基于DOE的方向盘总成优化分析

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针对某型号叉车怠速工况下的方向盘振动问题，提出了一种计算机仿真和实验验证相结合的优化方法。首先建立了方向盘总成的模型，应用有限元方法分析其动态特性；在此基础上用DOE方法进行实验设计，评估方向盘系统各部件在低频段内对总成振动的影响，并对相应的参数进行优化。最后将优化的参数应用到实际的方向盘系统中。实验结果表明，该型号叉车方向盘在怠速工况下的振动得到了明显的抑制，动态性能得到了改进。

Focus on the vibration issue under the idling mode in a specific type of forklift, a method that combines with the computer simula-tion and experiment is proposed to optimize the steering system. Firstly, the steering system is modeled, the Finite Element Method （FEM） is used to achieve the dynamical characteristics, then the Design Of Experiments （DOE） method is used to evaluate the relationships between the compo- nents and the vibration of the system under a low frequency range, the parameters are turned to an optimal condition. Finally, the optimization param-eters are applied to the forklift, the experiment re-sults indicate that, the vibration of the steering system is suppressed, and the dynamic characteris-tics are improved obviously.

实验设计，方向盘总成，优化，有限元模态，DOE，steering system，optimiza-tion，FEM modal。

基于DOE的方向盘总成优化分析。