This research investigates the design, modeling, and control of an improved magnetorheological rotary damper for seat suspension. A magnetorheological damper with optimized flux path is developed to improve the distribution of magnetic field. Its dynamic damping characteristics are tested by MTS machine under sinusoidal excitations. To describe the nonlinear damping characteristics of magnetorheological damper, a hysteretic model based on backbone curve is selected by comparing with other models. To verify the feasibility of seat suspension with the proposed magnetorheological damper, the simulated analysis and experimental tests are conducted. A dynamic model of scissor seat suspension with rotary damper is constructed and simplified. The performances of semi-active system show that the seat suspension with the proposed damper can reduce vibration efficiently.

中文翻译：

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剪刀式座椅悬架磁流变旋转阻尼器的设计、建模和控制

本研究调查了用于座椅悬架的改进磁流变旋转阻尼器的设计、建模和控制。开发了具有优化磁通路径的磁流变阻尼器以改善磁场分布。其动态阻尼特性由 MTS 机器在正弦激励下测试。为了描述磁流变阻尼器的非线性阻尼特性，通过与其他模型的比较，选择了一种基于主干曲线的滞回模型。为了验证采用所提出的磁流变阻尼器的座椅悬架的可行性，进行了模拟分析和实验测试。构建并简化了带旋转阻尼器的剪式座椅悬架动力学模型。