Relialbility Ananlysis for Link Mechanism Under Influence of Multiple Factors

doi:10.3969/j.issn.1000-1093.2012.04.019

Abstract

Abstract: The reliability analysis for link mechanism usually concerns the effectiveness and accuracy of the motion of the mechanism. Considering the influence of dimensional errors, clearances, assembling errors, friction coefficients, input driving velocities and external loads comprehensively, the typical mechanism model based on multi-rigid-body dynamics and clearance contact theory is established. Assuming that the above factors follow normal probability distribution are independent with each other, the mechanism reliability is analyzed by using the Monte Carlo sampling simulation method, and the effects of the above factors on the mechanism reliability are studied further. Then, the significant factors can be identified. The analysis can provide reference for the subsequent reliability analysis of the mechanism. Meanwhile, for the reliability analysis of other mechanisms, this paper makes sense for reference.

Key words: mechanics, reliability, Monte Carlo simulation, multi-rigid-body dynamics

CLC Number:

TH112
TB114

LAI Xiong-ming， DUAN Ji-an， ZHU Wei. Relialbility Ananlysis for Link Mechanism Under Influence of Multiple Factors[J]. Acta Armamentarii, 2012, 33(4): 497-502.

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