Title :
Optimal design and experimental research of railway wheels with constrained damping treatment
Author :
Wang, Z. ; Chen, Z.B. ; Tan, J.W. ; Jiao, Y.H.
Author_Institution :
Sch. of Mechatron. Eng., Harbin Inst. of Technol., Harbin, China
Abstract :
Theoretical model of symmetrical constrained damping structure for railway wheel is established based on complex stiffness method. Four parameters are related to the noise-restraint performance of wheel with damping treatment, which are the thickness of constrained layer, the thickness of damping layer, the loss factor and the complex shear module of damping material. Optimal calculation in the frequency range of railway curve squeal noise is finished. TWINS model is used here to predict the sound pressure level of noise radiated by damping wheel, and comparison between theoretical and experimental results is finished, which indicate the noise radiated from wheel and whole structure can be reduced with 6.6dB(A) and 3.9dB(A).
Keywords :
damping; design; elastic constants; railway rolling stock; wheels; TWINS model; complex shear module; complex stiffness method; constrained damping treatment; constrained layer thickness; damping layer thickness; loss factor; noise-restraint performance; optimal design; railway curve squeal noise; railway wheels; Educational institutions; Complex stiffness method; Constrained damping layer; Loss factor; Optimal design;
Conference_Titel :
Mechanical and Electrical Technology (ICMET), 2010 2nd International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-8100-2
Electronic_ISBN :
978-1-4244-8102-6
DOI :
10.1109/ICMET.2010.5598368
