1. Numerical analysis and optimization of wheel vibrations and radiation noises of the high-speed train
- Author
-
Xue-yu Lu, Zheng-qiao Lu, and Li-zong Lin
- Subjects
Acoustics ,lcsh:Mechanical engineering and machinery ,standard wheels ,02 engineering and technology ,Radiation ,Computer Science::Robotics ,vibration accelerations ,0202 electrical engineering, electronic engineering, information engineering ,General Materials Science ,lcsh:TJ1-1570 ,Boundary element method ,Coupling ,Physics ,business.industry ,Mechanical Engineering ,Numerical analysis ,S-type damping wheels ,020206 networking & telecommunications ,Structural engineering ,Physics::Classical Physics ,Finite element method ,Vibration ,damping wheels ,radiation noises ,020201 artificial intelligence & image processing ,Tread ,business ,Noise (radio) - Abstract
Finite element and boundary element models of the standard wheel, damping wheels and S-type damping wheels were established and compared. The radial vibration and axial vibration of the standard wheel could be reduced to decrease the vibro-acoustic radiation. Regarding damping wheels and S-type damping wheels, the coupling between the radial vibration and axial vibrations of 1 pitch circle could be reduced to decrease the radiation noise. The vibration acceleration in the tread, rim and web plate was significantly improved after applying damping in the standard wheel. If the web plate was changed into S-type structure, the vibration acceleration of the wheel at three positions was further reduced. The radiation noise of S-type damping wheels was significantly improved. The radiation noise of the web plate was significantly greater than that of the tread, which was caused by the larger radiation area of the web plate.
- Published
- 2016