A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Bridge Structure-Borne Noise of Concrete Trough-Girder Beam and Its Influence Factors
Abstract In order to investigate the structure-borne noise of trough-girder beam and its influence factors, a 30.0 m simply-supported concrete trough-girder beam is simulated by a means of hybrid FEM-IBEM method. Firstly, the combination of SIMPACK and ANSYS simulation method is adopted to obtain the wheel/rail exciting force. Then, we can calculate the vibration response and structure noise of the trough-girder beam under the action of train load. Finally, the influence height of web on trough-girder beam structure-borne noise is probed into. The research results show that: the dominate frequency ranges of trough-girder beam structure-borne noise is 20.0–80.0 Hz, respectively, the peak frequency of noise is 63.0 Hz. The structure-borne noise decreases with the increase of web height, and the influences of the far sound field is the more obvious. Research results can provides a theoretical reference for optimum design of trough-girder beam structure vibration and noise reduction.
Bridge Structure-Borne Noise of Concrete Trough-Girder Beam and Its Influence Factors
Abstract In order to investigate the structure-borne noise of trough-girder beam and its influence factors, a 30.0 m simply-supported concrete trough-girder beam is simulated by a means of hybrid FEM-IBEM method. Firstly, the combination of SIMPACK and ANSYS simulation method is adopted to obtain the wheel/rail exciting force. Then, we can calculate the vibration response and structure noise of the trough-girder beam under the action of train load. Finally, the influence height of web on trough-girder beam structure-borne noise is probed into. The research results show that: the dominate frequency ranges of trough-girder beam structure-borne noise is 20.0–80.0 Hz, respectively, the peak frequency of noise is 63.0 Hz. The structure-borne noise decreases with the increase of web height, and the influences of the far sound field is the more obvious. Research results can provides a theoretical reference for optimum design of trough-girder beam structure vibration and noise reduction.
Bridge Structure-Borne Noise of Concrete Trough-Girder Beam and Its Influence Factors
Liu, Linya (author) / Zeng, Feng (author) / Yau, J. D. (author) / Liu, Quanmin (author)
2017-06-28
8 pages
Article/Chapter (Book)
Electronic Resource
English
Trough-girder , Structure-borne noise , Influence factor , Finite element method , Indirect boundary element method Engineering , Geoengineering, Foundations, Hydraulics , Geotechnical Engineering & Applied Earth Sciences , Vibration, Dynamical Systems, Control , Monitoring/Environmental Analysis , Building Repair and Maintenance , Transportation Technology and Traffic Engineering
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