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提出了一种新型可动外环挤压油膜阻尼器（ＭＲＳＦＤ），并从理论和实验上研究了ＭＲＳＦＤ对刚性转子系统稳态运转时的振动控制能力，结果表明，与传统挤压油膜阻尼器（ＳＦＤ）相比，ＭＲＳＦＤ能明显抑制双稳态跳跃等非线性振动现象的发生，具有良好减振特性。
A new type of movable outer ring squeeze film damper (MRSFD) was proposed. The vibration control capability of MRSFD for steady rotor operation was studied both theoretically and experimentally. The results show that compared with traditional squeeze film damper (SFD), MRSFD can significantly inhibit the occurrence of nonlinear vibration such as bistable jumping, and has good vibration damping characteristics.