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| Research on one-piece suspension damping pillar based on magnetorheological materials |
1. State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun， Jilin 130022, China; 2. Automotive Engineering Research Institute, Jiangsu University, Zhenjiang, Jiangsu 212013, China
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Abstract To improve the ride comfort of car and the adapting ability to the time-varying road surface, a new integrated suspension design scheme based on magnetorheological materials was proposed to realize the graded regulation of stiffness for the electronically controlled air suspension. The damping pillar of the air suspension was improved based on the characteristics of magnetorheological materials to achieve the infinite regulating of stiffness and the damping of suspension system. The structural composition and working principle of the damping pillar were introduced, and the mathematical models of stiffness and damping characteristics were established respectively. An experimental bench was set up to identify the model parameters according to the experimental results, and the simulation results were compared with the experimental results. The results show the mathematical model of damping pillar is accurate, and the design scheme is suitable.
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Received: 29 January 2021
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