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弹流润滑状态下机床主轴轴承刚度特性分析
Authors
于浩
秦东晨
袁峰
陈江义
Publication date
1 January 2021
Publisher
Editorial Office of Journal of Mechanical Transmission
Doi
Cite
Abstract
圆柱滚子轴承的刚度特性会对机床动态性能产生较大影响。在双列圆柱滚子轴承力学分析的基础上,综合赫兹接触与润滑油膜对轴承刚度的影响,分析了不同工况以及润滑参数下的轴承刚度变化特性。分析结果表明,弹流润滑产生的润滑油膜会使轴承综合刚度下降;随着外载荷的增大,赫兹刚度与油膜刚度均有所提升,轴承综合刚度提高;提升轴承预紧量有利于提高轴承综合刚度;随着转速的提升,轴承综合刚度呈下降趋势;润滑油动力黏度以及黏压系数的增大均使得轴承综合刚度下降
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Last time updated on 06/04/2023