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标 题: Analysis of the nonlinear dynamic response of a rotor supported on ball bearings with floating-ring squeeze film dampers
带浮环压膜阻尼器的球轴承支撑转子非线性动态响应分析
作 者: Hai-lun Zhou
Gui-huo Luo
Guo Chen
Fei Wang
关键词: Rotor  [转子]
Squeeze film  [ 挤压膜]
Ball bearing  [ 滚珠轴承]
Nonlinear dynamic  [ 非线性动力学]
出版年: 2013
期刊名: Mechanism and Machine Theory
机构与机器理论
年卷期: 2013, vol.59
摘 要: A dynamic model of a rotor supported on ball bearings with floating-ring squeeze film dampers (FSFD) is established. In the model, the coupling effect between rotor, ball bearing and FSFD is considered. An efficient numerical integration approach has been employed to conduct the investigation into the rotor system. The results show that FSFD can effectively prevent bistable response, and the performance has also been demonstrated by experiments. Furthermore, the numerical results show that the speed range of non-synchronous motion response of rotor system increases as supporting stiffness increases. When floating-ring mass is less than the lumped mass at the journal position, the speed range of non-synchronous motion decreases as floating-ring mass increases.

建立了一个由浮环压膜阻尼器(FSFD)支撑的转子动态模型,该模型考虑了转子、球轴承与FSFD之间的耦合效应。采用高效的数值积分方法对转子系统进行了研究。结果表明,FSFD能有效防止双稳态响应,且实验也验证了其性能。此外,数值结果表明,随着支撑刚度的增加,转子系统的非同步运动响应速度范围也随之增大。当浮环质量小于轴颈位置的集中质量时,随着浮环质量的增加,非同步运动的速度范围会减小。
中文内容为网络AI翻译,专业术语未必准确,仅供参考。

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