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Dynamic Evolution Laws of the DI-SO Helical Gear System with Unsymmetrical Load Inputs

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Abstract

Background

DI-SO (Double inputs and single output) helical gears are the key components of many propulsion systems and the phenomenon of nonlinear instability caused by multiple time-varying parameters and unsymmetrical input loads cannot be ignored.

Methods

The nonlinear dynamic model of the DI-SO helical gear system was studied considering multiple nonlinear factors, and the evolution laws of the dynamic characteristics with load and structural parameters were discovered by numerical analysis methods.

Results

Abundant dynamic behaviors of periodic, quasi-periodic, harmonic, sub-harmonic, multi-harmonic, and chaotic responses are revealed with the variation of the system parameters. The increases of the load parameters, such as the excitation frequency, the load ratio, and the load value, are beneficial to improve the stability of the system. With the increasing structural parameters of the helix angle and the face width, the dynamic response of the system changes in fluctuation.

Conclusion

This study puts forward the importance of appropriate rotate speed, heavy load, and high contact ratio for the stability of the system and provides a theoretical reference for the design and optimization of the propulsion system with DI-SO helical gears.

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Funding

The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: this study was funded by the National Natural Science Foundation of China (Grant no. 11802175).

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Authors and Affiliations

  1. State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai, 200240, China

    Jianghai Xu, Chunxiao Jiao, Donglin Zou, Na Ta & Zhushi Rao

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  1. Jianghai Xu
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  2. Chunxiao Jiao
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  3. Donglin Zou
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  4. Na Ta
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  5. Zhushi Rao
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Correspondence to Zhushi Rao.

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Xu, J., Jiao, C., Zou, D. et al. Dynamic Evolution Laws of the DI-SO Helical Gear System with Unsymmetrical Load Inputs. J. Vib. Eng. Technol. 9, 1317–1334 (2021). https://doi.org/10.1007/s42417-021-00299-6

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  • DOI: https://doi.org/10.1007/s42417-021-00299-6

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