Reliability Analysis of the Main-Shaft Device of a Hoist System with Coupling Faults

Hao Lu; Lei Wang; Chao Quan Tang

doi:10.4028/www.scientific.net/AMM.872.286

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 872Reliability Analysis of the Main-Shaft Device of a...

Reliability Analysis of the Main-Shaft Device of a Hoist System with Coupling Faults

Abstract:

In this paper, the reliability and reliability sensitivity of the main shaft device of a hoist system is studied. The main purpose of this paper is to provide a modeling method for the joint probability distribution of main shaft device with coupling faults based on the system reliability theory and copula function theory. The stochastic response of the main shaft device is obtained using design of experiment. The reliability of the main shaft device is calculated based on the fourth moment method. The reliability sensitivity is then deduced based on the reliability results. The joint probability of failure between correlated failure modes is estimated based on the Gumbel copula. The system reliability evaluation of the main shaft device is then calculated. A numerical example of a main shaft device is illustrated to validate the application of the proposed method. The method proposed in this study can be provided for the analysis and design of the main shaft device of deep well hoist as a necessary theoretical basis.

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Periodical:

Applied Mechanics and Materials (Volume 872)

Pages:

286-292

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.872.286

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Online since:

October 2017

Authors:

Hao Lu*, Lei Wang, Chao Quan Tang

Keywords:

Copula, Coupling Faults, Main-Shaft Device, Reliability Design

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* - Corresponding Author

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