主动悬置次级通道模型验证及减振性能测试  

Verification of active mount secondary path model and vibration reduction performance testing

作　　者：未波 窦宇霏 范让林[1] WEI Bo;DOU Yufei;FAN Ranglin(School of Mechanical Engineering,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]北京科技大学机械工程学院,北京100083

出　　处：《振动与冲击》2024年第21期89-95,共7页Journal of Vibration and Shock

基　　金：国家自然科学基金项目(51175034)。

摘　　要：以电磁作动器式主动液阻悬置为研究对象,建立机-电-磁-液多物理场耦合的力学及数学模型,并推导次级通道传递特性,旨在分析和评估其在抑制车辆振动方面的性能。采用基于电压控制形式的次级通道传递特性的窄带复数滤波最小均方N-C-FxLMS(narrowband complex filtered-x least mean square)算法对系统进行仿真,并且基于dSPACE半实物仿真平台和inova振动试验台进行试验验证。仿真结果表明,在25~200 Hz的频段内,所提出的控制策略能够显著改善系统的减振性能。试验结果表明,主动控制能将传递至车身端的振动减小17 dB~27 dB,验证了模型的准确性和控制策略的有效性,为主动悬置系统的设计和优化提供了有价值的理论依据和试验支持。Here,taking an electromagnetic actuator type active hydraulic mount as the study object,its mechanical and mathematical model of mechanical-electric-magnetic-liquid multi-physics field coupled was established,and the secondary path transfer characteristics were derived to analyze and evaluate its performance in suppressing vehicle vibration.The narrowband complex filtered-x least mean square(N-C-FxLMS)algorithm based on voltage control form for secondary path transfer characteristics was used to perform simulation for the system,and the experimental verification was conducted based on dSPACE semi-physical simulation platform and inova vibration test platform.The simulation results showed that the proposed control strategy can significantly improve vibration reduction performance of the system within the frequency range of 25-200 Hz.The experimental results showed that the active vibration control can reduce the vibration transmitted to vehicle body end by 17 dB-27 dB to verify the correctness of the model and the effectiveness of the control strategy,and provide valuable theoretical basis and experimental support for designing and optimizing active mount systems.

关 键 词：旋转机械 主动减振 主动液阻悬置 次级通道 快速控制原型 

分 类 号：TB123[理学—工程力学] TH113[理学—力学]