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以传统叶片式减振器为基础,设计了具有“失效安全”特性的新型叶片式磁流变减振器。首先基于平板模型和B ingham模型推导了磁流变减振器力矩数学模型,然后分析了初始阻尼力不变情况下的阻尼力可调倍数影响因素,最后应用有限元分析软件ANSOFT对所设计的磁路进行仿真,分析了磁场分布。理论分析及仿真结果表明,叶片式磁流变减振器的阻尼力可调范围能满足重型车辆半主动悬挂系统的需要。
Based on the traditional vane damper, a new type of vane-type MR damper with “fail-safe” characteristics has been designed. First of all, the mathematical model of moment of MR damper was deduced based on the flat model and B ingham model. Then, the influencing factors of the adjustable multiple of damping force under initial damping force were analyzed. Finally, Magnetic circuit simulation, analysis of the magnetic field distribution. Theoretical analysis and simulation results show that the adjustable range of the damping force of the vane-type MR damper can meet the needs of semi-active suspension system for heavy vehicles.