在渐进式审查下,对具有异质洛马克斯分布组件的多组件应力强度系统的可靠性推断
Akram Kohansal1, Hassan S Bakouch2, Reza Pakyari3
1Department of Statistics, Imam Khomeini International University, Qazvin, Iran.
Scientific reports
|May 16, 2025
概括
这项研究估计了m组件应力强度可靠性使用Lomax分布在渐进的第一次故障审查下. 通过模拟和真实数据分析,比较了各种估计方法.
科学领域:
- 可靠性工程可靠性工程
- 统计推理 统计推理
- 可能性分布的概率分布.
背景情况:
- 在系统可靠性评估中,m组件应力强度参数至关重要.
- 渐进的第一次故障 (PFF) 审查是可靠性研究中的实用数据收集方案.
- 由于其灵活性,洛马克斯分布经常用于建模生命周期数据.
研究的目的:
- 在PFF审查下估计m组件应力强度参数.
- 为了比较经典和贝叶斯估计方法的性能.
- 通过使用开发的方法来分析现实世界的数据集.
主要方法:
- 最大概率估计 (MLE) 用于参数估计.
- 使用马尔科夫链蒙特卡洛 (MCMC) 和林德利近似的贝叶斯估计.
- 导出非对称的置信区间和最高后密度 (HPD) 可信区间.
- 统一最小差异无偏估计器 (UMVUE) 考虑已知的参数.
- 蒙特卡洛模拟用于绩效评估.
- 现实数据分析用于实际说明.
主要成果:
- 在不同的场景下,MLE和贝叶斯方法的性能比较.
- 评估区间估计技术 (信心区间和可信区间).
- 证明方法在现实世界应力强度数据上的适用性.
结论:
- 该研究为PFF审查下压力强度可靠性估计提供了一个全面的框架.
- 经典和贝叶斯的方法都提供了可行的估计策略,性能因场景而异.
- 这些发现适用于工程系统,其中组件故障遵循洛马克斯分布,数据是PFF被审查的.
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