Resonance reduction for linked train cars moving on multiple simply supported bridges
學年 111
學期 2
出版（發表）日期 2023-07-26
作品名稱 Resonance reduction for linked train cars moving on multiple simply supported bridges
作品名稱（其他語言）
著者 Yau, Jong-dar
單位
出版者
著錄名稱、卷期、頁數 Journal of Sound and Vibration 568(6),　117963
摘要 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.
關鍵字
語言 en_US
ISSN 1095-8568
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者
審稿制度 是
國別 USA
公開徵稿
出版型式 ,電子版
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