基于加快的双变量维纳降解过程的永磁制动的可靠性评估
Jihong Pang1, Chaohui Zhang1,2, Xinze Lian3
1College of Business, Shaoxing University, Shaoxing 312000, China.
Mathematical biosciences and engineering : MBE
|July 28, 2023
概括
由于相关的性能指标,评估永磁制动 (PMB) 的可靠性是一项挑战. 一个加速的双变量维纳降解模型使用降解数据准确量化PMB可靠性.
科学领域:
- 机械工程 机械工程
- 可靠性工程可靠性工程
- 材料科学 材料科学 材料科学
背景情况:
- 永久磁铁制动器 (PMB) 对于停止和保持负载至关重要,要求高可靠性.
- 由于多个相互依赖的绩效指标,评估PMB可靠性是复杂的.
- 现有的方法很难准确地捕捉PMB的降解行为.
研究的目的:
- 开发一种可靠的方法,准确评估永磁制动器 (PMB) 的可靠性.
- 使用新型降解模型分析PMB的加速降解试验 (ADT) 数据.
- 在运行条件下量化PMB的可靠性.
主要方法:
- 在PMB上进行了恒定应力加速降解试验 (ADT).
- 开发了一种加速的双变维纳降解模型,结合了阿雷尼乌斯关系和常见的随机效应.
- 使用马尔科夫链蒙特卡洛 (MCMC) 算法进行参数估计.
主要成果:
- 提出的双变量维纳降解模型有效地分析了两个关键PMB性能指标的相关降解数据.
- 该模型通过阿雷尼乌斯模型成功地描述了降解率和压力水平之间的关系.
- 单位对单位的变化和指标之间的相关性被捕获使用一个常见的随机效应.
结论:
- 拟议的加速双变量维纳降解模型提供了一种可靠的方法来量化PMB可靠性.
- 该方法通过考虑多个相关的绩效指标,准确评估PMB健康状况.
- 这种方法提高了在正常使用条件下PMB可靠性的预测.
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