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利用磁流变流体的粘度能够在极短的时间内随外加磁场发生明显的可逆变化的特性，提出了一种新型的磁流变流体挤压油膜阻尼器。在分析了各种磁流变流体、外加磁场强度和挤压油膜阻尼器的径向间隙对转子系统在非旋转状态下的频响函数特性的影响后，详细地研究了磁流变流体挤压油膜阻尼器对转子系统的振动进行控制的可行性和有效性，最后分析了磁流变流体挤压油膜阻尼器所存在的一些特殊问题。试验表明在较大的阻尼器径向间隙和较小初始粘度的磁流变流体的条件下，磁流变流体挤压油膜阻尼器的动力特性完全可以由简单的磁场来控制，并且具有显著的减振移频作用。
By using the property that the viscosity of magnetorheological fluid can change significantly with the applied magnetic field in a very short period of time, a new type of rheological fluid squeeze film damper is proposed. After analyzing the influence of various magnetorheological fluids, the applied magnetic field strength and the radial clearance of the squeeze film damper on the frequency response function of the rotor system in the non-rotating state, the effects of magneto-rheological fluid squeezing The feasibility and effectiveness of the oil film damper in controlling the vibration of the rotor system are analyzed. Finally, some special problems existing in the squeeze film damper of the magnetorheological fluid are analyzed. Experiments show that the dynamic characteristics of the MRF squeeze film damper can be completely controlled by a simple magnetic field with a large radial clearance of the damper and a low initial viscosity magnetorheological fluid, Shock frequency shift effect.