An internal bypass magnetorheological damper (MRD) with twin cylinders (Bai et al., 2013, Magnetorheological damper utilizing an inner bypass for ground vehicle suspensions, IEEE Transactions on Magnetics, 49(7): 3422-3425) was proposed for both vibration and shock control systems. In the internal bypass MRD, the gap between the inner and outer cylinders is the flow gap for MR fluids. The coil winding is wound on the inner cylinder to provide the electromagnetic field. The mechanical responses of the internal bypass MRD, including the controllable damping force and response time, are modeled and analyzed in this paper. The corresponding experimental tests are carried out to validate using selfdeveloped test systems.
Xian-Xu Bai, Sheng Shen, Fei-Long Cai, Xue-Cai Deng, and Shi-Xu Xu, "Mechanical responses of a magnetorheological damper," Proc. SPIE 10595, Active and Passive Smart Structures and Integrated Systems XII, 1059507 (Presented at SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring: March 05, 2018; Published: 15 March 2018); https://doi.org/10.1117/12.2294502.
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