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XIANG Changle
WANG Wenping
LIU Hui
National Key Laboratory of
Vehicle Transmission,
Beijing Institute of Technology,
Beijing 100081, China
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NUMERICAL SIMULATION OF SOUND
RADIATION ON GEARBOX’S HOUSING
Abstract:
The fluid-structure coupling finite element model and the boundary element model of a complex gearbox’s housing are built based on the theory of fluid-structure coupling finite element method and boundary element method. At the same time, the exciting forces of the housing are analyzed and applied to the finite element models. Firstly, vibration of the housing is calculated by the fluid-structure coupling finite element model; secondly, the calculated result is verified by the experiment; finally, sound radiation of the housing is calculated by the boundary element. According to the calculated results, the housing adds some ribs not only to increase the strength, but also to reduce the sound radiation of the housing. At last, the sound radiation of the modified housing is calculated, which shows that the sound radiation of the modified housing with ribs is lower.
Key words:
Sound radiation Finite element model Boundary element model
Fluid-structure coupling
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Received April 25, 2007; received in revised form September 6, 2007; accepted March 20, 2008 |
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Biographical notes
XIANG Changle is currently a professor in Beijing Institute of
Technology, China. He received his PhD degree from School of Mechanical
and Vehicular Engineering, Beijing Institute of Technology, China, in
1999. His research interests include general theory and modern design of
vehicle, system theory and technology of vehicle transmission.
Tel: +86-10-68913667; E-mail: xiangcl@bit.edu.cn
WANG Wenping is currently a PhD candidate
in Beijing Institute of Technology, China. His research interest is NVH
of vehicle power train.
Tel: +86-10-68912512; E-mail: wanvep@bit.edu.cn
LIU Hui is currently an associate professor
in Beijing Institute of Technology, China. She received her PhD degree
from School of Mechanical and Vehicular Engineering, Beijing Institute
of Technology, China, in 2003. Her research interest is system theory
and technology of vehicle transmission.
Tel: +86-10-68911772; E-mail: lh@bit.edu.cn
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[5] LIU Hui. Dynamic simulation and analysis of torque vibration on
vehicle power train[D]. Beijing: Beijing Institute of Technology, 2003.
(in Chinese)
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