DYNAMIC RESPONSE OF MAGNETO-RHEOLOGICAL DAMPERS FOR AUTOMOBILE
Dynamic response time is an extremely important character of MR dampers, and it directly determines the control frequency, application range and practical performance of MR dampers. According to the analytic results of instantaneous flowing theory based on the parallel flats and the practical operation conditions, the theory expression of dynamic response is proposed. The acquired ascending and descending curves of damping force were processed and statistically analyzed, and response time under different testing condition was acquired. A MTS system generates a triangle-wave-displacement as actuator signal. The acceleration signal of actuator could be transformed into passive pulse which is used to trigger a signal generator. All of signals of MR dampers are recorded by a high-speed data acquisition system. An integrated test system has been founded and the experiments in different velocities and excitation currents have been carried out. The influences under each condition such as different linking modes of electromagnetic coils, different step current amplitude, different piston speed and working temperature were analyzed. At last, the reasonable explanation was given out.
Dynamic response MR damper Automobile Experimental method
Mao Linzhang Yu Miao Chen Aijun Liao Changrong Meng Yanpei Chen Weimin
Key L.of Optoelectronic Technology and System of MOE, College of Optoelectronic Engineering, Chongqing University, Chongqing, 400044, China
国际会议
南京
英文
218-225
2006-09-24（万方平台首次上网日期，不代表论文的发表时间）