RESEARCH ON TIME-DEPENDENT KINEMATIC RELIABILITY BASED ON TIME DOMAIN ERROR MODEL

WANG Shuai; GAO Peng; LIU Chang; CHEN YiTing

doi:10.16579/j.issn.1001.9669.2020.04.017

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RESEARCH ON TIME-DEPENDENT KINEMATIC RELIABILITY BASED ON TIME DOMAIN ERROR MODEL

更新时间：2022-09-22

- RESEARCH ON TIME-DEPENDENT KINEMATIC RELIABILITY BASED ON TIME DOMAIN ERROR MODEL
- Journal of Mechanical Strength Vol. 42, Issue 4, Pages: 869-874(2020)
- 作者机构：
  
  1. 辽宁石油化工大学机械工程学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2020.04.017
  CLC：
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WANG Shuai, GAO Peng, LIU Chang, et al. RESEARCH ON TIME-DEPENDENT KINEMATIC RELIABILITY BASED ON TIME DOMAIN ERROR MODEL. [J]. 42(4):869-874(2020)
DOI：

WANG Shuai, GAO Peng, LIU Chang, et al. RESEARCH ON TIME-DEPENDENT KINEMATIC RELIABILITY BASED ON TIME DOMAIN ERROR MODEL. [J]. 42(4):869-874(2020) DOI： 10.16579/j.issn.1001.9669.2020.04.017.

摘要

随着机械系统越来越复杂,研究运动时变可靠性变得非常重要。为了提高机构运动可靠性分析的效率和精度,通过概率法分析机构运动误差,基于最大熵原理和随机过程理论建立时域-误差可靠性模型。以6轴机器人机构作为研究对象,综合动态和静态运动误差。应用Adams对机构进行运动学仿真。应用蒙特卡洛法进行计算。取前5个运动周期的100个误差样本,通过建立ARIMA模型估计运动误差。应用最大熵原理推导概率分布,然后使用时域-误差模型法求解运动时变可靠度。通过与仿真方法进行对比,验证了时域-误差可靠性模型在运动可靠性研究中的正确性和有效性,为今后的研究提供参考。

Abstract

With mechanical system becoming more and more complex. It is very important to research time-dependent kinematic reliability. In order to improve the efficiency and accuracy of mechanism kinematic reliability analysis. By means of the analysis of mechanism kinematic error by probability method. Based on the theory of maximum entropy and random process,the reliability model of time-domain error is established. The object of study is a 6-axis robot mechanism. The static and dynamic kinematic error was synthesized. Kinematics simulation analysis was conducted by using ADAMS. The solution could be computed with Monte Carlo method. Select 100 error samples for the first 5 periods. The kinematic error was estimated by ARIMA model.The principle of maximum entropy was applied to derive probability density function. The time-dependent kinematic reliability was then estimated by the model of time domain error. Compared with the simulation method,The correctness and validity of the time-domain error reliability model in the study of kinematic reliability are verified,which can provide the reference for future research.

关键词

机构时域-误差模型Adams蒙特卡洛法时变可靠性

Keywords

MechanismModel of time domain errorADAMSMonte Carlo methodTime-dependent reliability

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