Optimization design method for marine gearbox’s vibration and noise reduction

Zixuan Wang; Ying Qiu; Junyang Ni; Jiazhao Wang

doi:10.1117/12.2641095

20 September 2022 Optimization design method for marine gearbox’s vibration and noise reduction

Zixuan Wang, Ying Qiu, Junyang Ni, Jiazhao Wang

Proceedings Volume 12261, International Conference on Mechanical Design and Simulation (MDS 2022); 122611C (2022) https://doi.org/10.1117/12.2641095
Event: Second International Conference on Mechanical Design and Simulation (MDS 2022), 2022, Wuhan, China

Abstract

The vibration and noise caused by shock in the working state of the marine gearbox seriously affect its performance. It is of great significance to analyze the vibration characteristics of the gearbox and then reduce its vibration and noise level. In this paper, a spring vibration damper is added to the gearbox and the finite element method is used to analyze the dynamics of the gearbox to obtain the vibration characteristics of the gearbox. The radiation noise characteristics of the gearbox are obtained by the direct boundary element method and then use the sound pressure distribution of the external acoustic field to optimize the noise of the gearbox. The results show that after adding a spring radiation damper to the bottom of the gearbox, the noise radiation power is reduced by more than 10%, which can effectively reduce the vibration and noise.

Citation Download Citation

Zixuan Wang, Ying Qiu, Junyang Ni, and Jiazhao Wang "Optimization design method for marine gearbox’s vibration and noise reduction", Proc. SPIE 12261, International Conference on Mechanical Design and Simulation (MDS 2022), 122611C (20 September 2022); https://doi.org/10.1117/12.2641095

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