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Dynamic Thermal Behavior of Two-Stage Gear Transmission System

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Abstract

Purpose

Thermal behavior is vital for the stability of the gear system, especially at high speed and heavy load. This paper establishes a gear-shaft-bearing coupling system dynamic model, considering the time-varying stiffness of gears and bearings. On this basis, an analysis method for the heat transfer and temperature field of the system is proposed.

Methods

The dynamic load and vibration displacement are first solved to determine the amount of heat flux generated by friction during system operation. This heat flux is then considered as a thermal load to perform a thermal analysis of a finite element model of the transmission system, and the validity of the model is verified by experiments. Finally, the effect of the dynamic characteristics on thermal behavior is studied.

Results and Conclusion

The temperature response of the transmission system considering the dynamic characteristics is quite different from that under normal working conditions. The heat transfer rate is accelerated, and the temperature response increases sharply when the system is in torsional resonance. Moreover, the adjustment of the gear position can effectively improve the high-temperature response, while the bending resonance of the shaft has little effect on the thermal behavior.

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Funding

This work was supported in part by the National Natural Science Foundation of China (Grant NO. 51665054), in part by the Graduate Research and Innovation Project of Xinjiang Uygur Autonomous Region (Grant NO. XJ2020G052 and XJ2020G053).

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Authors and Affiliations

  1. College of Mechanical Engineering, Xinjiang University, Urumqi, 830047, China

    Shuai Qiao, Jianxing Zhou, Xiangfeng Zhang, Hong Jiang, Yuan Shao, Yong Shen & Chenglong Wang

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  1. Shuai Qiao
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  2. Jianxing Zhou
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  3. Xiangfeng Zhang
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  4. Hong Jiang
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  5. Yuan Shao
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  6. Yong Shen
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  7. Chenglong Wang
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Corresponding author

Correspondence to Jianxing Zhou.

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Qiao, S., Zhou, J., Zhang, X. et al. Dynamic Thermal Behavior of Two-Stage Gear Transmission System. J. Vib. Eng. Technol. 9, 1809–1831 (2021). https://doi.org/10.1007/s42417-021-00329-3

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  • DOI: https://doi.org/10.1007/s42417-021-00329-3

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