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An integrated semi-active seat suspension for both longitudinal and vertical vibration control is analyzed and tested in this paper. The seat suspension consists of a switching mechanism transforming both longitudinal and vertical motions into a rotary motion and a real-time damping-controllable system-a rotary magnetorheological (MR) damper working in pure shear mode and its corresponding control system. The switching mechanism employs the parallelogram frames as a motion guide which keeps the seat moving longitudinally and vertically. At the same time, both longitudinal and vertical motions are transformed into a reciprocating rotary motion that is transmitted to the rotary MR damper after an amplification by a gear mechanism. Both the longitudinal and vertical vibrations can be attenuated in real time through controlling the damping force (or torque) of the rotary MR damper. The mathematical model of the seat suspension system is established, simulated, and analyzed. The experimental test based on the test rig in Hefei University of Technology is implemented, and the results of simulation and experimental test are compared and analyzed.
Xian-Xu Bai,Peng Jiang,Hui Pan, andLi-Jun Qian
"Analysis and testing of an integrated semi-active seat suspension for both longitudinal and vertical vibration control", Proc. SPIE 9799, Active and Passive Smart Structures and Integrated Systems 2016, 979921 (15 April 2016); https://doi.org/10.1117/12.2217950
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Xian-Xu Bai, Peng Jiang, Hui Pan, Li-Jun Qian, "Analysis and testing of an integrated semi-active seat suspension for both longitudinal and vertical vibration control," Proc. SPIE 9799, Active and Passive Smart Structures and Integrated Systems 2016, 979921 (15 April 2016); https://doi.org/10.1117/12.2217950