Generation and Modeling of Asymmetric Hysteresis Damping Characteristics for a Symmetric Magnetorheological Damper
Asymmetric hysteresis damping characteristics are essential for vehicle suspension design with symmetric magnetorheological (MR) dampers. For this purpose, an asymmetric damping force generation (ADFG) algorithm is proposed by limiting the driving current to a higher value corresponding to extension and a lower value for compression, and the subsequent transient in damping force response is suppressed by a smooth modulator based on the arctan function. To describe the asymmetric hysteresis damping characteristics, an asymmetric hysteresis forcevelocity (f-v) model is derived upon integrating the velocity and force offsets into the proposed symmetric synthesis, also, the model parameters are identified with least square algorithm and experimental data under various operation conditions. Excellent correlations between the model and experimental results verify the effectiveness of the algorithm and model.
Magnetorheological damper Asymmetric hysteresis damping characteristics Asymmetric hysteresis f-v model
Wang Wanjun Zhang Weigong Wang Enrong
School of Instrument Science and Engineering Southeast University Nanjing, China School of Electrical and Automation Engineering Nanjing Normal University Nanjing, China
国际会议
长沙
英文
2110-2115
2009-10-10（万方平台首次上网日期，不代表论文的发表时间）