Di Zuo, Daye Chen, Mingji Zhu, Penghui Jiang, Yizhuo Zhao, Yu Liu, Qiwen Xue, Chongshuai Wang
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Reliability analysis of harmonic drive with multiple failure modes based on improved calculation model of flexspline stress
The impact of the axial length of the flexspline on the overall structural reliability of harmonic drives is commonly underestimated in research. To address this issue, this study introduces an improved equation for accurately calculating flexspline stress. In assessing the reliability of harmonic drives, the study takes into account the interplay of flexspline strength failure, flexspline contact failure, and flexspline tooth wear failure, using the Copula function and the Monte Carlo method. Through numerical simulations, the study investigates the influence of flexspline length, revealing a growing impact as the length decreases. Furthermore, considering both flexspline length and multiple failure modes leads to an increased likelihood of failure as calculated. The proposed model significantly enhances the precision of reliability assessments for harmonic drives, thereby allowing for more accurate predictions regarding their operational lifespan.
期刊介绍：
Meccanica focuses on the methodological framework shared by mechanical scientists when addressing theoretical or applied problems. Original papers address various aspects of mechanical and mathematical modeling, of solution, as well as of analysis of system behavior. The journal explores fundamental and applications issues in established areas of mechanics research as well as in emerging fields; contemporary research on general mechanics, solid and structural mechanics, fluid mechanics, and mechanics of machines; interdisciplinary fields between mechanics and other mathematical and engineering sciences; interaction of mechanics with dynamical systems, advanced materials, control and computation; electromechanics; biomechanics.
Articles include full length papers; topical overviews; brief notes; discussions and comments on published papers; book reviews; and an international calendar of conferences.
Meccanica, the official journal of the Italian Association of Theoretical and Applied Mechanics, was established in 1966.
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