Reliability Analysis of New RMG Lifting Driving System Based on Correlation Theory

2019 International Conference on Advances in Construction Machinery and Vehicle Engineering (ICACMVE) Pub Date : 2019-05-01 DOI:10.1109/ICACMVE.2019.00030

Yuantao Sun, Kaige Chen, Qing Zhang, X. Qin, Chao Liu

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引用次数: 1

Abstract

Due to the large number of components and complex structure of the new rail mounted container gantry crane (RMG) driving system, there always exists correlation between failure modes of components, so this paper proposes a system reliability analysis method based on mixed Copula, and the reliability analysis of lifting driving system of the new RMG is carried out. Firstly, according to the stress-strength interference theory, the functions of failure modes of components in lifting driving system are constructed, and the reliability calculation model of components is established considering the correlation of failure modes. Then, the reliability of components of the new RMG lifting driving system is analyzed and calculated by Monte Carlo sampling method. Finally, the reliability of the lifting driving system is calculated. Compared with the traditional design method, the results show that the reliability analysis method considering the correlation is more practical in engineering, the calculation results are more accurate, and the weak links of the system can be found out, which can provide reference for design decision.

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基于关联理论的新型RMG提升驱动系统可靠性分析

由于新型轨道式集装箱门式起重机驱动系统部件数量多、结构复杂，部件失效模式之间总是存在相关性，因此本文提出了一种基于混合Copula的系统可靠性分析方法，并对新型轨道式集装箱门式起重机提升驱动系统进行了可靠性分析。首先，根据应力-强度干涉理论，构建了提升驱动系统中各部件失效模式的函数，建立了考虑失效模式相关性的部件可靠性计算模型;然后，采用蒙特卡罗采样法对新型RMG举升驱动系统各部件的可靠性进行了分析和计算。最后，对提升传动系统的可靠性进行了计算。结果表明，与传统的设计方法相比，考虑相关性的可靠性分析方法在工程上更加实用，计算结果更加准确，可以发现系统的薄弱环节，为设计决策提供参考。

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2019 International Conference on Advances in Construction Machinery and Vehicle Engineering (ICACMVE)

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