Chinese Journal of Ship Research, Volume. 17, Issue 2, 198(2022)

Analytical and experimental research on impact load during rapid engagement of gas turbine

Hao CHEN1... Ruiping ZHOU1, Hong FAN1, Junsong LEI1 and Zhaowei ZHOU2 |Show fewer author(s)
Author Affiliations
  • 1School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063, China
  • 2China Ship Development and Design Center, Wuhan 430064, China
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    Objectives

    This paper proposes a theoretical calculation method for obtaining the impact load and dynamic response of shafting during the rapid engagement process of a combined gas turbine and gas turbine (COGAG) power plant.

    Methods

    According to the mechanical relationships between various components in the meshing process of a synchro-self-shifting (SSS) clutch, a dynamic analysis model of the clutch is established, and the dynamic simulation and bench test during the rapid engagement of COGAG are carried out.

    Results

    As the simulation results show, when the damping dashpot functions, a significant torque impact occurs on the clutch spiral spline which can result in a strong dynamic response on the shafting. It is also found that the relative position of the ratchet and pawl is random, which can cause the peak torque impact and dynamic response of the shafting to fluctuate within a certain range. Through a power plant experiment, the accuracy of the impact load calculation method and the randomness of the impact amplitude are verified, and the errors of the maximum and minimum torque response amplitudes are 3.56% and 8.86% respectively.

    Conclusions

    This paper finds that the rapid engagement of COGAG can produce an obvious torque impact which can affect the safety of the power plant. As such, it can provide references for the operation safety evaluation of COGAG power plants.

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    Hao CHEN, Ruiping ZHOU, Hong FAN, Junsong LEI, Zhaowei ZHOU. Analytical and experimental research on impact load during rapid engagement of gas turbine[J]. Chinese Journal of Ship Research, 2022, 17(2): 198

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    Paper Information

    Category: Marine Machinery, Electrical Equipment and Automation

    Received: Apr. 4, 2021

    Accepted: --

    Published Online: Mar. 24, 2025

    The Author Email:

    DOI:10.19693/j.issn.1673-3185.02341

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