考虑空穴效应的广义特征分解法解雷诺方程

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考虑空穴效应的广义特征分解法解雷诺方程

更新时间：2025-07-09

- 考虑空穴效应的广义特征分解法解雷诺方程
- Issue 3, Pages: 109-116(2021)
- 作者机构：
  
  西安交通大学现代设计及转子轴承系统教育部重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TH133.31
- Published：2021
- 稿件说明：
移动端阅览
[J]. 2021, (3): 109-116.
DOI：

[J]. 2021, (3): 109-116. DOI：

摘要

针对目前油膜力模型空穴效应考虑不充分、计算速度优势不明显等问题

基于广义特征分解法(PGD)

采用雷诺边界条件

提出了一种考虑空穴效应的动载有限长滑动轴承非线性油膜力模型

并给出了详细的求解方法与流程。数值算例表明

与传统的有限差分法(FDM)相比

基于新模型方法的油膜力计算速度最快可以提高近5倍

最低相对误差可以控制在1%以内

证明了所提方法的准确性与高效性。含润滑间隙铰接副的动力学分析依赖于对雷诺方程数十万次的求解

精度与效率往往不可兼得

在曲柄滑块多体系统中引入新计算模型

计算结果表明

在30×30和40×40的网格密度下

与传统有限差分法相比

基于新模型方法的单个计算周期所节省时间分别高达6min和20min

证明了所提方法的可靠性和工程应用价值。

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references

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