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首页> 外文期刊>Reliability Engineering & System Safety >Time-variant reliability analysis for industrial robot RV reducer under multiple failure modes using Kriging model
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Time-variant reliability analysis for industrial robot RV reducer under multiple failure modes using Kriging model

机译：使用Kriging模型在多种故障模式下工业机器人RV减速器的时变可靠性分析

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摘要

This paper proposes a time-variant reliability method for an industrial robot rotate vector (RV) reducer with multiple failure modes using a Kriging model. Firstly, the limit state functions of the industrial robot RV reducer are built by considering time-variant load and material degradation based on the failure physic method. Secondly, a time-variant reliability analysis method for multiple failure modes is proposed based on a double-loop Kriging model. The inner loop is the extremal optimization for each limit state function based on the efficient global optimization (EGO). The outer loop is the active learning reliability analysis by combining multiple response Gaussian process model (MRGP) and the Monte Carlo simulation (MCS). Furthermore, three learning functions (U-function, EFF-function and H-function) are individually adopted to choose a new sample point until the convergence is satisfied. Case studies are finally provided to illustrate the effectiveness of the proposed method.
机译：本文提出了一种使用Kriging模型的具有多种故障模式的工业机器人旋转向量（RV）减速器的时变可靠性方法。首先，通过考虑基于故障物理方法的时变负荷和材料劣化来构建工业机器人RV减速器的极限状态功能。其次，基于双环kriging模型提出了一种用于多个故障模式的时变可靠性分析方法。基于高效的全局优化（EGO），内圈是每个限制状态功能的极值优化。外环是通过组合多响应高斯过程模型（MRGP）和蒙特卡罗模拟（MCS）来实现主动学习可靠性分析。此外，单独采用三个学习功能（U-Function，Eff功能和H函数）来选择新的采样点，直到满足收敛。案例研究最终提供以说明所提出的方法的有效性。

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  • 来源
    《Reliability Engineering & System Safety》 |2020年第7期|106936.1-106936.9|共9页
  • 作者

    Qian Hua-Ming; Li Yan-Feng; Huang Hong-Zhong;

  • 作者单位

    Univ Elect Sci & Technol China Sch Mech & Elect Engn Chengdu 611731 Sichuan Peoples R China|Univ Elect Sci & Technol China Ctr Syst Reliabil & Safety Chengdu 611731 Sichuan Peoples R China;

    Univ Elect Sci & Technol China Sch Mech & Elect Engn Chengdu 611731 Sichuan Peoples R China|Univ Elect Sci & Technol China Ctr Syst Reliabil & Safety Chengdu 611731 Sichuan Peoples R China;

    Univ Elect Sci & Technol China Sch Mech & Elect Engn Chengdu 611731 Sichuan Peoples R China|Univ Elect Sci & Technol China Ctr Syst Reliabil & Safety Chengdu 611731 Sichuan 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

    Industrial robot; RV reducer; Multiple response Gaussian process; Time-variant reliability; Kriging; Efficient global optimization; Learning function;

    机译：工业机器人;RV减速器;多响应高斯过程;时间变异可靠性;克里格;高效的全局优化;学习功能;

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