Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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 (Autor:in) / Zeng, Feng (Autor:in) / Yau, J. D. (Autor:in) / Liu, Quanmin (Autor:in)
28.06.2017
8 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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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