Reliability Design of Shearer's Planet Carrier

doi:10.3901/JME.2019.08.192

Abstract

Abstract: In order to improve the reliability of shearer's planet carrie in complicated seam, using the MG400/951-WD shearer model as the research object, baseing on the cutting coal theory, drum's general force and torque load is obtained by Matlab. Combing with rigid-flexible virtual prototype coupling established a virtual prototype model with flexible planet carrie, weak links are found through the simulation. Combing with the theory of reliability sensitivity design, robust design theory and the theory of performance degradation, the influence of the planet carrie's design variables to reliability sensitivity gradient is analyzed, a multi-objective optimization evaluation function of planet carrie is established, the optimal design variables is obtained by improved particle swarm optimization. The results show that the maximum stress decreased by 56.388% and design variable sensitivity tends to be stable.Combing with the theory of reliability sensitivity design, robust design theory and the theory of performance degradation, a theory of collaborative coupled virtual prototype technology with reliability design is proposed, which has important engineering application values.

Key words: planet carrier, reliability robust design, reliability sensitivity, rigid-flexible coupling, shearer

CLC Number:

TD421

ZHAO Lijuan, FAN Jiayi, LI Minghao, LI Hui. Reliability Design of Shearer's Planet Carrier[J]. Journal of Mechanical Engineering, 2019, 55(8): 192-200.

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