The Reliability Analysis of Mechanical Leg (2UPS+UP) Based on a Discrete Time Repairable Markov Model

Abstract:

We have analyzed some reliability problems of the 2UPS+UP mechanism using continuous Markov repairable model in our previous work. According to the check and repair of the robot is periodic, the discrete time Markov repairable model should be more appropriate. Firstly we built up the discrete time repairable model and got the one step transition probability matrix. Secondly solved the steady state equations and got the steady state availability of the mechanical leg, by the solution of the difference equations the reliability and the mean time to first failure were obtained. In the end we compared the reliability indexes with the continuous model.

• Periodical: Applied Mechanics and Materials (Volumes 713-715)
• Pages: 760-763
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.713-715.760
• Online since: January 2015
• Authors: Jia Lei Zhang*, Zhen Lin Jin, Dong Mei Zhao
• Keywords: 2UPS+UP Mechanism, Discrete Time Repairable Markov System, One-Step Transition Probability Matrix, Reliability, Robot

References

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DOI: 10.4028/www.scientific.net/amm.687-691.665