对轮轴承驱动系统的可靠性分析,考虑轮制造和安装错误
Jinzhou Song1, Yifan Wang2, Lei Hou3
1School of Astronautics, Harbin Institute of Technology, Harbin, 150001, China.
Scientific reports
|July 2, 2025
概括
轮轴承系统的制造错误会影响性能. 本研究开发了一种可靠性分析模型,以评估轮回应和轴承空隙的不确定性如何影响系统动态和可靠性,并确定设计优化的关键参数.
科学领域:
- 机械工程 机械工程
- 可靠性工程可靠性工程
- 系统动力学系统动力学
背景情况:
- 轮轴承驱动系统容易因制造和安装错误而导致性能下降和故障.
- 诸如轮反击和轴承空隙等参数的不确定性会对系统可靠性和寿命产生重大影响.
- 现有的模型往往不能完全捕捉这些系统固有的合动态和不确定性.
研究的目的:
- 开发一个可靠性分析模型,考虑变速轴承驱动系统的参数不确定性.
- 调查轮反弹和轴承距离变化对系统自然频率和振动响应的影响.
- 为优化轮轴承系统中关键参数的设计和控制提供见解.
主要方法:
- 建立了轮轴承驱动系统的动态模型,并配合了动态网格参数.
- 整合了确定性动态模型与切比舍夫区间分析,用于在不确定性下进行可靠性评估.
- 分析了不同偏差率和旋转速度的自然频率和振动响应的变化.
主要成果:
- 轴承的初始空隙对动态特性的影响要大于在相同的旋转速度和偏差率下初始轮空隙.
- 系统可靠性随着在低转速时平均初始轴承干扰增加而降低.
- 大大的轴承空隙偏差可以导致高速度异常的振动波动.
结论:
- 开发的可靠性分析模型有效量化了轮轴承系统参数不确定性的影响.
- 轴承空隙是控制系统动态和可靠性的一个比轮空隙更关键的参数.
- 这些发现为在轮轴承系统的结构优化和设计中优先考虑参数控制提供了一种方法.
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