A cab seat suspension with a magneto-rheological (MR) fluid damper is introduced in this paper. A unified-format model for the MR damper is proposed to describe the dynamic characteristics of the MR damper. Also, a simple force-inverse model and a viscous damping tracking model are used for the coil current solution. A digital integrator and an extended Kalman filter are respectively adopted to obtain the vibration velocity of the chair frame and the relative motion velocity of the MR damper piston. A new skyhook control base with viscous damping tracking is applied to the semi-active seat suspension. In the simulation, compared with passive seat suspension under different displacement excitation (2, 4, 6, 8 Hz-sine, and random), the acceleration root mean square of the seat suspension with the MR damper is reduced by 52.2%, 32.2%, 41.3%, 50.8%, and 34.6%, respectively. In the experiment, the acceleration root mean square is reduced by 11.2%, 41.2%, 45.8%, and 31.5%, respectively under different displacement excitation (2, 4, 6, and 8 Hz-sine).

本文介绍了一种带有磁流变（MR）流体阻尼器的驾驶室座椅悬架。提出了用于MR阻尼器的统一格式模型来描述MR阻尼器的动态特性。同样，简单的反力模型和粘性阻尼跟踪模型用于线圈电流解。分别采用数字积分器和扩展卡尔曼滤波器来获得椅子框架的振动速度和MR阻尼器活塞的相对运动速度。带有粘性阻尼跟踪功能的新型天钩控制座应用于半主动式座椅悬架。在模拟中，与在不同位移激励下（2、4、6、8 Hz正弦和随机）的被动式座椅悬架相比，MR阻尼器的座椅悬架的加速度均方根减小了52.2％，32.2％ ，41.3％，50.8％，和34.6％。在实验中，在不同位移激励下（2、4、6和8 Hz正弦波），加速度均方根分别减小了11.2％，41.2％，45.8％和31.5％。