Vibration Isolation Performance of Floating Slab Track Using a Time Domain Train-Track-Tunnel Coupled Model
Based on the theory of vehicle-track coupled dynamics, a vertical train-floating slab track-tunnel coupled dynamic model is developed in time domain. The train contains six vehicles and each vehicle is a multi-rigid-body system of 10 DOFs, and the rail and the slab are, respectively, modeled by Timoshenko beam and Euler beam, and the track foundation and the tunnel are simplified as a composite Euler beam on an elastic foundation. The fasteners and vibration isolators are modeled by linear spring-damper elements, and the vertical wheel/rail interaction is solved by the nonlinear Hertz contact theory. The average power flow into the track foundation in time domain is taken as the index to evaluate the vibration isolation performance of the floating slab track.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784481257
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Supplemental Notes:
- © 2018 American Society of Civil Engineers.
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Corporate Authors:
American Society of Civil Engineers
1801 Alexander Bell Drive
Reston, VA United States 20191-4400 -
Authors:
- Yang, Jianjin
- Zhai, Wanming
- Zhang, Xiaoan
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Conference:
- First International Conference on Rail Transportation 2017
- Location: Chengdu Sichuan Provence, China
- Date: 2017-7-10 to 2017-7-12
- Publication Date: 2018
Language
- English
Media Info
- Media Type: Web
- Pagination: pp 9-18
- Monograph Title: ICRT 2017: Railway Development, Operations, and Maintenance
Subject/Index Terms
- TRT Terms: Concrete slab track; Dynamic models; Floating foundations; Rolling contact; Vibration isolation
- Subject Areas: Design; Railroads;
Filing Info
- Accession Number: 01869836
- Record Type: Publication
- ISBN: 9780784481257
- Files: TRIS, ASCE
- Created Date: Jan 15 2023 5:17PM