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某轻型卡车方向盘怠速振动优化控制研究 被引量:2

Study on Optimal Control of Idling Vibration of Steering Wheel of a Light Truck
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摘要 研究某轻型卡车方向盘怠速抖动问题,传统的方向盘优化方案是基于模态分析法来对转向系统结构进行优化,但缺乏相关算法研究,具有一定的盲目性。为寻求切实有效的减振整改方案,提高系统的鲁棒性,基于建立的转向系统的多自由度等效系统模型,提出一种针对转向系统的模态控制算法,同时利用模态分析法对建立的方向盘有限元结构模型的振动特征进行模态识别,找出了具体引起方向盘共振的频率带和相关的阻尼特性,进而从振动的传递路径方向上提出相关整改方案,包括提高隔振率和结构轻量化处理等。通过仿真求解计算和整改结构相关振动模态实验测试验证,优化控制算法和改进措施正确有效。经实车测试,整改后方向盘异常振动现象消失。 The traditional steering wheel optimization scheme is based on modal analysis method to optimize the steering system structure,but there is a lack of relevant algorithm research,which has certain blindness.In order to find effective vibration reduction and reform scheme and improve the robustness of the system,a modal control algorithm for steering system was proposed based on the equivalent system model of multi-degree-of-freedom(MDOF)of the steering system.At the same time,a modal analysis method was used to identify the vibration characteristics of the finite element structural model of the steering wheel,and to find out the frequency band and the related damping characteristics that caused the vibration of the steering wheel.And then,from the direction of vibration transfer path,the paper put forward a relevant rectification plan,including improving the isolation rate and the structure lightweight treatment and so on.The optimization control algorithm and the improvement measures were proved correct and effective by simulation calculation and vibration modal test of structural modification.The abnormal vibration of the steering wheel disappeared after the rectification.
作者 何水龙 汤涛 叶明松 周军 HE Shui-long;YE Ming-song;ZHOU jun(School of Mechanical and Electrical Engineering,Guilin University of Electronic Technology,Guilin Guangxi 541004,China;Dongfeng Liuzhou Motor CO.LTD,Liuzhou Guangxi 545005,China)
出处 《计算机仿真》 北大核心 2019年第3期158-163,共6页 Computer Simulation
基金 柳州市科学研究与技术开发计划课题(2016B020203) 广西教育厅科研项目(2017KY0207) 广西制造系统与先进制造技术重点实验室主任基金(16-380-12-004Z 16-380-12-011K)
关键词 方向盘 结构优化 模态分析 转向系统 共振 Steering wheel Structural optimization Modal analysis Steering system Resonance
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