国外文献 > 1.轴承 > 4. 设计与分析 > 设计方法
关键词搜索：
| 标 题： |
A kinematic precision reliability evaluation method for rotor-bearing systems considering multi-source wear degradations and random errors
考虑多源磨损劣化和随机误差的转子轴承系统运动精度可靠性评估方法 |
| 作 者： |
Wang, Hongwei
Xiang, Jiawei
Zhao, Xufeng
Li, Yulong |
| 关键词： |
Rotor-bearing systems [转子轴承系统]
Precision reliability evaluation [ 精密可靠性评估]
Time-variant wear models [ 时间变化的磨损模型]
Random error sources [ 随机误差来源]
Meta-action [ 元行动]
GEOMETRIC ERRORS [ 几何误差]
MACHINE-TOOLS [ 机床]
IDENTIFICATION [ 身份识别]
MECHANISMS [ 机制]
PREDICTION [ 预测]
MODEL [ 型号] |
| 出版年： |
2023 |
| 期刊名： |
The International Journal of Advanced Manufacturing Technology
先进制造技术国际期刊 |
| 年卷期： |
2023, vol.124, no.11/12 |
| 摘 要： |
Rotor-bearing systems play a vital role in machine tools, aero engines, and wind turbines. Generally, worn-induced degradation quantities and manufacturing errors of components are the main error sources that influence the precision reliability of rotor-bearing systems. The current precision reliability evaluation models are focusing on several error sources in only a few key components without agreeable results. Therefore, a precision reliability evaluation model is proposed considering all time-variant error sources and random error sources. Firstly, time-variant wear models for commonly occurred degradation types in a rotor-bearing system are developed. Secondly, the constructed time-variant wear models are inserted into the precision model with all moving components in the rotor-bearing system using meta-action structural decomposition method. Finally, the time-variant stochastic process discretization method is employed to establish the precision reliability evaluation model, and solve the precision reliability of the rotor-bearing systems. Case investigations are carried out to verify the performance of the present model, which provides a more accurate precision reliability evaluation model to estimate the conditions of rotor-bearing systems during the service period.
转子轴承系统在机床、航空发动机和风力涡轮机中发挥着至关重要的作用。通常，部件因磨损引起的退化量以及制造误差是影响转子轴承系统精度可靠性的主要误差来源。目前的精度可靠性评估模型仅关注少数关键部件中的若干误差源，但结果并不一致。因此，本文提出一种综合考虑所有随时间变化的误差源和随机误差源的精度可靠性评估模型。首先，针对转子轴承系统中常见的退化类型，建立了随时间变化的磨损模型； 其次，将构建的随时间变化的磨损模型通过元操作结构分解法，引入包含所有运动部件的转子轴承系统精度模型中； 最后，采用随时间变化的随机过程离散化方法建立精度可靠性评估模型，并求解转子轴承系统的精度可靠性。通过案例研究来验证当前模型的性能，该模型可提供更精确的精度可靠性评估方法，用于估算转子轴承系统在服役期间的运行状态。 |
| 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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