In this paper, topology optimization of gearbox to reduce the radiated noise is studied based on the analysis of modal acoustic contribution and panel acoustic contribution. Firstly, the bearing dynamic loads are obtained by solving the dynamic equations of gear system. Secondly, the vibration of gearbox is calculated using FEM and the radiated noise is simulated using BEM by taking these bearing dynamic loads as excitations. Thirdly, the panel having larger contribution to the sound pressure level (SPL) at a specific field point is found by panel acoustic contribution analysis (PACA), and this panel is taken as design domain. The mode order with larger contribution is determined by modal acoustic contribution analysis (MACA), and making corresponding natural frequency becomes far away from excited frequency is taken as a constraint. Finally, the topology optimization of gearbox is completed using SIMP method, and the ribs are arranged according to the optimization results. The results show that the equivalent sound pressure level at objective field point can be reduced obviously by using this method.
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ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
August 2–5, 2015
Boston, Massachusetts, USA
Conference Sponsors:
- Design Engineering Division
- Computers and Information in Engineering Division
ISBN:
978-0-7918-5720-5
PROCEEDINGS PAPER
Topology Optimization of Gearbox to Reduce Radiated Noise
J. P. Wang,
J. P. Wang
Northwestern Polytechnical University, Xi’an, China
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G. Liu,
G. Liu
Northwestern Polytechnical University, Xi’an, China
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S. Chang,
S. Chang
Northwestern Polytechnical University, Xi’an, China
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L. Y. Wu
L. Y. Wu
Northwestern Polytechnical University, Xi’an, China
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J. P. Wang
Northwestern Polytechnical University, Xi’an, China
G. Liu
Northwestern Polytechnical University, Xi’an, China
S. Chang
Northwestern Polytechnical University, Xi’an, China
L. Y. Wu
Northwestern Polytechnical University, Xi’an, China
Paper No:
DETC2015-48086, V010T11A003; 6 pages
Published Online:
January 19, 2016
Citation
Wang, JP, Liu, G, Chang, S, & Wu, LY. "Topology Optimization of Gearbox to Reduce Radiated Noise." Proceedings of the ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 10: ASME 2015 Power Transmission and Gearing Conference; 23rd Reliability, Stress Analysis, and Failure Prevention Conference. Boston, Massachusetts, USA. August 2–5, 2015. V010T11A003. ASME. https://doi.org/10.1115/DETC2015-48086
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