P. Pozsgai, A. Krolo, B. Bertsche, A. Fritz
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引用次数: 5

摘要

本文提出了几种考虑预防性维护措施的系统可靠性计算方法。此外,作者提出了重要性的概念,它允许确定组件故障对系统故障的影响。通过实例分析,给出了单步传动系统可靠性分析的三个步骤。演示了如何分别从失效数据和计算中获得部件的可靠度函数。在计算中,通过损伤累积假设确定B/sub 10/寿命,特别是小齿轮、齿轮和滚珠轴承。然后利用数据库确定三参数威布尔分布的参数。结果,作者得到了分析齿轮传动系统的可靠度。采用可靠性工具SYSLEB对径向轴封失效数据进行了评估。此外,应用SYSLEB确定了各部件和系统的可靠性函数。结果表明,通过对小齿轮和齿轮的改进,可以提高系统的可靠性。为此目的,还可以采取预防性维修行动。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
SYSLEB-a tool for the calculation of the system reliability from raw failure data
In this paper, several methods are presented for the calculation of the system reliability also considering preventive maintenance actions. Additionally, the authors present the concept of importance, which allows to determine the influence of a component failure on the system failure. In a case study, the three steps for the system reliability analysis of a single-step gearing are shown. It is demonstrated how to receive the reliability function of components from failure data or from calculations respectively. Within the calculation, the B/sub 10/ lifetime is determined by means of the damage accumulation hypothesis, especially for the pinion, the gear and the ball bearings. Afterwards a database is used to determine the parameters of the three-parameter Weibull distribution. As a result, the authors received the system reliability of an analyzed gearing. The reliability tool SYSLEB was used for the evaluation of the failure data of the radial shaft seals. Additionally, the reliability functions for the components as well as for the system were determined by applying SYSLEB. It was shown that the system reliability could be increased by improving the pinion and the gear to avoid breakage. For this purpose preventive maintenance actions could also be applied.
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