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设计了基于混合工作模式的车辆座椅磁流变减振器。利用ANSYS软件仿真验证了磁路设计的可行性,研究了结构参数、电流对磁流变减振器阻尼力的影响。进行了减振器台架试验,获减振器的示功特性曲线、速度特性曲线及阻尼力随电流的变化规律。结果表明,阻尼力随激振速度和电流增大而增大,阻尼力可控倍数随激振速度增大而减小,最大值可达3,且减振器输出阻尼力满足车辆座椅悬架垂直、俯仰、侧倾3个方向阻尼力要求。
A hybrid seat-based MR damper was designed. The feasibility of magnetic circuit design was verified by ANSYS software simulation. The influence of structure parameters and current on damping force of MR damper was studied. The damper test was carried out, and the dynamical characteristic curve, speed characteristic curve and damping force of the absorber were changed with the current. The results show that the damping force increases with the increase of excitation speed and current, and the controllable multiple of damping force decreases with the increase of excitation speed, the maximum value can reach 3, and the output damping force of the shock absorber can meet the requirements of vehicle seat suspension Vertical, pitch, roll damping requirements in three directions.