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Time domain series system definition and gear set reliability modeling

机译：时域级数系统定义和齿轮组可靠性建模

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Time-dependent multi-configuration is a typical feature for mechanical systems such as gear trains and chain drives. As a series system, a gear train is distinct from a traditional series system, such as a chain, in load transmission path, system-component relationship, system functioning manner, as well as time dependent system configuration. Firstly, the present paper defines time-domain series system to which the traditional series system reliability model is not adequate. Then, system specific reliability modeling technique is proposed for gear sets, including component (tooth) and subsystem (tooth-pair) load history description, material priori/posterior strength expression, time-dependent and system specific load strength interference analysis, as well as statistically dependent failure events treatment. Consequently, several system reliability models are developed for gear sets with different tooth numbers in the scenario of tooth root material ultimate tensile strength failure. The application of the models is discussed in the last part, and the differences between the system specific reliability model and the traditional series system reliability model are illustrated by virtue of several numerical examples. (C) 2016 Elsevier Ltd. All rights reserved.
机译：与时间有关的多重配置是机械系统（如齿轮系和链传动）的典型功能。作为串联系统，齿轮系在负载传递路径，系统-组件关系，系统功能方式以及与时间有关的系统配置方面与传统的串联系统（如链条）不同。首先，本文定义了时域级联系统，而传统的级联系统可靠性模型还不够完善。然后，针对齿轮组，提出了系统特定的可靠性建模技术，包括组件（齿）和子系统（齿对）的载荷历史描述，材料先验/后强度表达，时变和系统特定的载荷强度干扰分析，以及统计相关的故障事件处理。因此，在齿根材料极限抗拉强度失效的情况下，针对具有不同齿数的齿轮组开发了几种系统可靠性模型。最后讨论了模型的应用，并通过几个数值例子说明了系统特定可靠性模型与传统系列系统可靠性模型之间的差异。 （C）2016 Elsevier Ltd.保留所有权利。

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