Research on the influence of vibration isolation structure on marine gearbox vibration and noise reduction

Junyang Ni; Long Yang; Xiaoxu Zhang; Zixuan Wang; Jiazhao Wang

doi:10.1117/12.2640752

20 September 2022 Research on the influence of vibration isolation structure on marine gearbox vibration and noise reduction

Junyang Ni, Long Yang, Xiaoxu Zhang, Zixuan Wang, Jiazhao Wang

Author Affiliations +

Proceedings Volume 12261, International Conference on Mechanical Design and Simulation (MDS 2022); 122612U (2022) https://doi.org/10.1117/12.2640752
Event: Second International Conference on Mechanical Design and Simulation (MDS 2022), 2022, Wuhan, China

Abstract

The marine gearbox generates huge vibration and noise due to excitation, which seriously affects performance evaluation and stealth during the working process. To solve the problem this article adds a vibration isolation system to the gearbox, explores the vibration and noise reduction performance of the 6 spring vibration isolation structures on the gearbox. Furthermore, not only the Block Lanczos method in the ABAQUS software is used to perform modal analysis and dynamic analysis on the gearbox, but also LMS Virtual. Lab acoustic simulation calculation software is used to analyze the noise of the gearbox. The results show that after adding a shock spring vibration damper to the bottom of the gearbox, the noise is reduced by 15%, which can effectively reduce the vibration and noise of the gearbox during operation.

Citation Download Citation

Junyang Ni, Long Yang, Xiaoxu Zhang, Zixuan Wang, and Jiazhao Wang "Research on the influence of vibration isolation structure on marine gearbox vibration and noise reduction", Proc. SPIE 12261, International Conference on Mechanical Design and Simulation (MDS 2022), 122612U (20 September 2022); https://doi.org/10.1117/12.2640752

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