Resonance reduction for linked train cars moving on multiple  simply supported bridges

doi:10.1016/j.jsv.2023.117963

機構典藏 > College of Engineering > Graduate Institute & Department of Architecture > Journal Article > Item 987654321/126801

Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/126801

Title:	Resonance reduction for linked train cars moving on multiple simply supported bridges
Authors:	Yau, J.D.;Urushadze, S.
Date:	2024-01
Issue Date:	2025-03-20 09:25:31 (UTC+8)
Publisher:	Elsevier
Abstract:	The dynamic interaction of a moving train over a series of railway bridges with equal spans can result in a coupled vibration problem of wave transmission between two periodic structures. Dual resonance occurs when both systems vibrate in phase and the train travels at a resonant speed. The objectives of this paper are to (1) develop an active pitching resonator (APR) to attenuate resonance waves in a train; (2) study the dispersion relation for pitching motion control of periodically linked train cars; (3) investigate the key parameters that affect the dispersion band gaps of wave attenuation in a train; (4) present an active vibration cancellation method to enhance the control performance of the APR; and (5) demonstrate the effectiveness of using the optimal APRs to reduce resonance of a moving train. Through dispersion analysis, the optimum APR can not only shift the target frequency level away from resonance of a moving train, but also create a wide resonance band gap to reduce wave transmission in the train. Finally, the effectiveness of the optimum APR unit in reducing the resonance and attenuating the waves of a train travelling over multiple-span simple beams is demonstrated by dynamic finite element analysis of the train-bridge interaction.
Relation:	Journal of Sound and Vibration 568，p.117963
DOI:	10.1016/j.jsv.2023.117963
Appears in Collections:	[Graduate Institute & Department of Architecture] Journal Article

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	13	View/Open

Loading...