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A new non-probabilistic time-dependent reliability model for mechanisms with interval uncertainties

机译：具有间隔不确定性的机制的新非概率时间依赖性可靠性模型

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摘要

This paper proposes a new non-probabilistic time-dependent reliability model for evaluating the kinematic reliability of mechanisms when the input uncertainties are characterized by intervals. Based on the introduction of the non-probabilistic interval process of motion error, the most probable point of an outcrossing is defined to transform the complicated time-dependent problem into a concisely time-independent problem. A non-probabilistic time-dependent reliability index is proposed to evaluate the kinematic reliability of various mechanisms, and two computational strategies are designed to calculate the index. Then, the proposed reliability model is applied to a numerical example, a typical four-bar linkage mechanism and a car rack-and-pinion steering linkage mechanism, to demonstrate the significance of the proposed reliability model. The results show that the proposed model provides an effective tool for making reliability evaluation of time-dependent problems.
机译：本文提出了一种新的非概率时间相关的可靠性可靠性模型，用于评估当输入不确定性以间隔特征在于时的机制的运动可靠性。 基于引入非概率间隔过程的运动误差，最可能的outcrossing点被定义为将复杂的时间依赖问题转换为一个简洁的时间问题。 提出了一种非概率的时间相关的可靠性指标来评估各种机制的运动可靠性，并且设计了两种计算策略来计算索引。 然后，将所提出的可靠性模型应用于数值示例，典型的四杆连杆机构和汽车架和小齿轮转向机构，以证明所提出的可靠性模型的重要性。 结果表明，该拟议的模型提供了一种有效的工具，用于使时间依赖性问题的可靠性评估。

著录项

  • 来源
    《Reliability Engineering & System Safety》 |2021年第11期|107771.1-107771.12|共12页
  • 作者

    Chang Qi; Zhou Changcong; Wei Pengfei; Zhang Yishang; Yue Zhufeng;

  • 作者单位

    Northwestern Polytech Univ Inst Aircraft Reliabil Engn Dept Engn Mech Xian 710129 Peoples R China;

    Northwestern Polytech Univ Inst Aircraft Reliabil Engn Dept Engn Mech Xian 710129 Peoples R China;

    Northwestern Polytech Univ Inst Aircraft Reliabil Engn Dept Engn Mech Xian 710129 Peoples R China;

    AECC Commercial Aircraft Engine Co Ltd R&D Ctr Shanghai 201108 Peoples R China;

    Northwestern Polytech Univ Inst Aircraft Reliabil Engn Dept Engn Mech Xian 710129 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Mechanism; Time-dependent reliability; Motion error; Non-probabilistic; Interval process;

    机译：机制;时间相关的可靠性;运动错误;非概率;间隔过程;

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