Analysis and Optimization on Kinematic Reliability of Metamorphic Mechanisms with Multiple Failure Modes

被引：0
|
作者：
Wang R. [1 ]
Chen H. [2 ]
机构：
[1] College of Mechanical Engineering, Guangxi University, Nanning
[2] College of Light Industry and Food Engineering, Guangxi University, Nanning
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2021年 / 57卷 / 11期
关键词：
Metamorphic mechanisms; Multiple failure modes; Optimization; Reliability; State space;
D O I：
10.3901/JME.2021.11.184
中图分类号：
学科分类号：
摘要：
A reliability calculation method is proposed for the kinematic reliability model with the multiple failure modes of task-oriented controllable metamorphic mechanisms with probabilistic random variables and non-probabilistic interval variables. In this method, the state space with probability information is presented according to the reliability variables, the safe space function is generated by combining the failure functions of multiple failure modes and the correlation functions of their variables, and the safe space in the state space is achieved, the reliability is obtained by solving it or calculating with spatial discretization for it. On this basis, an optimization method for kinematic reliability of metamorphic mechanisms with multiple failure modes is developed. The optimal objective function value and the reliability distribution of the optimal variables satisfied the constraint conditions are attained. The kinematic reliability model of the metamorphic palletizing robot system in case study is analyzed and optimized by these methods. Through comparison with the conventional calculation methods, the accuracy of these methods is verified. This study provides a reference basis for reliability study of metamorphic mechanisms. © 2021 Journal of Mechanical Engineering.
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页码：184 / 194
页数：10
相关论文
共 32 条
  • [1] DAI J S, JONES J R., Mobility in metamorphic mechanisms of foldable/erectable kinds, Transactions of the ASME: Journal of Mechanical Design, 121, 3, pp. 375-382, (1999)
  • [2] GAN D, DAI J S, LIAO Q., Constraint analysis on mobility change of a novel metamorphic parallel mechanism, Mechanism and Machine Theory, 45, 12, pp. 1864-1876, (2010)
  • [3] WU Teng, ZHANG Wuxiang, DING Xilun, Design and analysis of a novel parallel metamorphic mechanism, Journal of Mechanical Engineering, 51, 7, pp. 30-37, (2015)
  • [4] WANG Rugui, DAI Jiansheng, Design and analyses of a novel plane-space polyhedral reconfigurable metamorphic mechanism, Journal of Mechanical Engineering, 49, 11, pp. 29-35, (2013)
  • [5] LIANG Youjian, ZHAO Jieliang, YAN Shaoze, Bionic design of morphing nose cone for aerospace vehicle based on the deformable mechanism of honeybee abdomen, Journal of Mechanical Engineering, 56, 5, pp. 47-54, (2020)
  • [6] XU Kun, QIAO Anwei, DING Xilun, Design and analysis of a scissor-bending deployable and foldable mechanism, Journal of Mechanical Engineering, 56, 5, pp. 55-62, (2020)
  • [7] LIU Jiangnan, YU Dejie, Metamorphic equation of variable topology mechanisms based on the constraint function, Journal of Mechanical Engineering, 48, 9, pp. 1-9, (2012)
  • [8] CHANG Boyan, JIN Guoguang, DAI Jiansheng, Type synthesis of metamorphic mechanism based on variable constraint screw theory, Journal of Mechanical Engineering, 50, 5, pp. 17-25, (2014)
  • [9] YANG Qiang, WANG Hongguang, LI Shujun, Et al., Type synthesis of constrained metamorphic mechanisms with structural forms of the metamorphic joints, Journal of Mechanical Engineering, 50, 13, pp. 1-8, (2014)
  • [10] LI Jiangnan, ZHANG Weibo, Study on Design catalogue of variable joints of variable topology mechanism, Journal of Hunan University, 44, 10, pp. 33-40, (2017)
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