The Application of Nonlinear Energy Sinks Controller in a Full Car Semi-Active Suspension System with MR Dampers

摘要：

In this paper,a Nonlinear Energy Sink(NES)controller is designed and used to control semiactive suspension system with MR dampers.A full car model with seven degrees of freedom is developed and used to demonstrate the effectiveness of the NES controller.The proposed controller relies in its operation on specially designed nonlinear spring elements which are attached to the primary suspension system in order to induce optimal nonlinear vibration energy sinks.Four MR dampers are designed,manufactured and integrated with four independent NES controllers.Performance of the full car semi-active suspension system with NES controllers is evaluated both in the time and frequency domains.The obtained performance characteristics are compared with those of passive suspension and suspension using classical LQR controller.Simulation results show that the vibration energy transmitted by road disturbance has been successfully attenuated and the best possible ride comfort and handling performance can be potentially achieved by the proposed NES controller.It is also seen that the cost function of energy consumption using the NES controller is less than that using the LQR controller.The obtained results demonstrate the potential of the NES controller as an effective means for attenuating the vibration of vehicle suspension systems.

关键词： Nonlinear Energy Sink MR damper Semi-active Suspension

作者: L. ZHENG Y.N. LI A. Baz A. Elsabbagh

作者单位: State Key Laboratory of Mechanical Transmission,Chongqing University,Chongqing,China Department of Mechanical Engineering,University of Maryland,College Park,MD,USA

会议类型: 国际会议

会议名称: The World Forum on Smart Materials and Smart Structures Technology(SMSST07)(2007年世界智能材料与智能结构技术论坛)

会议地点: 重庆·南京

会议语种:英文

在线出版日期: 2007-05-01（万方平台首次上网日期，不代表论文的发表时间）