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Performance Analysis of a Hybrid Power Cutting System for Roadheader

Author

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  • Yang Yang
  • Guowei Li
  • Aihui Yuan

Abstract

An electrohydraulic hybrid power cutting transmission system for roadheader under specific working condition was proposed in this paper. The overall model for the new system composed of an electric motor model, a hydraulic pump-motor model, a torsional planetary set model, and a hybrid power train model was established. The working mode characteristics were simulated under the conditions of taking the effect of cutting picks into account. The advantages of new hybrid power cutting system about the dynamic response under shock load were investigated compared with the traditional cutting system. The results illustrated that the hybrid power system had an obvious cushioning in terms of the dynamic load of cutting electric motor and planetary gear set. Besides, the hydraulic motor could provide an auxiliary power to improve the performance of the electric motor. With further analysis, a dynamic load was found to have a high relation to the stiffness and damping of coupling in the transmission train. The results could be a useful guide for the design of cutting transmission of roadheader.

Suggested Citation

  • Yang Yang & Guowei Li & Aihui Yuan, 2017. "Performance Analysis of a Hybrid Power Cutting System for Roadheader," Mathematical Problems in Engineering, Hindawi, vol. 2017, pages 1-12, March.
    • Handle: RePEc:hin:jnlmpe:1359592
    DOI: 10.1155/2017/1359592
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