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标 题: A Multiple Nodes Model for Journal Bearing Considering the Distributed Supporting Effect and the Shaft Deformation
考虑分布式支撑效应和轴变形的多节点模型——针对滚动轴承
作 者: Huang, Xun
Xu, Ge
Jiang, Shuyun
关键词: journal bearing  [轴承多节点模型]
multiple nodes model  [ 长轴承]
long bearing  [ 分布的刚度和阻尼系数]
distributed stiffness and damping coefficients  [ 转子轴承系统]
rotor-bearing system  [ 轴承设计与技术]
bearing design and technology  [ 轴承]
bearings  [ 液膜润滑]
fluid film lubrication  [ 流体动力润滑]
hydrodynamic lubrication  [ 动态系数]
DYNAMIC COEFFICIENTS  [ 临界速度]
CRITICAL SPEEDS  [ RO]
出版年: 2022
期刊名: Journal of Tribology
摩擦学杂志
年卷期: 2022, vol.144, no.10
摘 要: Journal bearing reaction is usually represented by a set of forces and moments concentrated at a single point. This single point support model cannot be utilized to describe the behavior of fairly long bearing. This technical brief proposes a multiple nodes model for the long bearing considering the distributed characteristics of bearing reaction and the effect of shaft deformation. The static behaviors of a rotor-bearing case with the proposed multiple nodes model are compared with those of the other three typical models. The result shows that the proposed multiple nodes model is practical for the analysis of the rotor system with a fairly long bearing, and the distributed effect of bearing reaction should be considered when the ratio of bearing length to the half of rotor length exceeds 0.2.

滚动轴承反力通常用一组集中于单一位置的力和力矩来表示。这种单点支撑模型无法用于描述较长轴承的行为。本技术简报提出了一种多节点模型,以考虑轴承反力的分布特性以及轴变形的影响,适用于长轴承的分析。将采用所提出的多节点模型分析的转子-轴承系统静力学行为与另外三种典型模型的结果进行比较。结果表明,该多节点模型适用于分析具有较长轴承的转子系统,当轴承长度与转子长度一半之比超过0.2时,应考虑轴承反力的分布效应。
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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