材料摩擦异响试验台随机振动控制方法研究  

Research on Random Vibration Control of Material Friction Induced Abnormal Noise of Test Bench Based on Frequency Domain X-Filter Adaptive Inverse Control Technique

作　　者：李书阳 柳明生 常光宝 黎谦 饶刚 罗勇[2,3] LI Shuyang;LIU Mingsheng;CHANG Guangbao;LI Qian;RAO Gang;LUO Yong(SAIC-GM-Wuling Automobile Co.,Ltd.,Liuzhou 545007,Guangxi,China;Key Laboratory of Advanced Manufacturing Technology for Automobile Parts,Chongqing University of Technology,Chongqing 400054,China;State Key Laboratory of Vehicle NVH and Safety Technology,China Automotive Engineering Research Institute Co.,Ltd,Chongqing 401122,China)

机构地区：[1]上汽通用五菱汽车股份有限公司,广西柳州545007 [2]重庆理工大学汽车零部件先进制造技术教育部重点实验室,重庆400054 [3]中国汽车工程研究院股份有限公司汽车噪声振动和安全技术国家重点实验室,重庆401122

出　　处：《噪声与振动控制》2023年第4期288-294,共7页Noise and Vibration Control

基　　金：汽车噪声振动和安全技术国家重点实验室2017年度开放基金资助项目(NVHSKL-201702)。

摘　　要：为解决车辆在真实道路中的材料摩擦异响测试精度及稳定性问题,开发车用材料摩擦异响试验台系统,基于此系统对其随机振动功率谱密度再现控制方法展开研究。采用变步长频域-X滤波LMS自适应逆控制模型来实时修正系统阻抗函数,实现功率谱密度的高精度再现。采用NI Compact RIO控制器完成数据采集及实时数据处理,对系统振动加速度进行闭环控制,从而实现功率谱密度的实时再现。试验结果表明,采用频域-X滤波LMS自适应逆控制方法可以高精度再现设定功率谱密度,再现误差小于10%,满足实际工程精度要求和实时性要求。In order to improve the accuracy and stability of the material friction induced abnormal noise test for the vehicles running on real road,a corresponding test bench system is developed.The reproduction control method of random vibration power spectrum density of the system is studied.The variable-step frequency domain and X-filter LMS adaptive inverse control model are used to modify the impedance function of the system in real-time so as to achieve high precise reproduction of the power spectral density.The NI CompactRIO controller is used to complete data acquisition and real-time data processing,and the closed-loop control is employed for the system vibration acceleration control,so as to realize the real-time reproduction of the power spectral density.The test results show that the frequency domain-X filter LMS adaptive inverse control method can reproduce the set power spectral density with high precision,and the reproduction error is less than 10%,which meets the actual engineering accuracy requirement and real-time requirement.

关 键 词：振动与波 自适应逆控制 功率谱密度 LMS算法 随机试验 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]