平面或高架軌道承受高速列車之動力特性與動力反應

The Dynamic Characteristics and Responses of a Surface or Elevated Railway to a High-Speed Train

徐子明(Z-Ming Shiu)

指導教授 ： 陳永祥

共同指導教授 ： 洪振發 ； 楊永斌(Y. B. Yang)

國立臺灣大學/工學院/土木工程學研究所/博士(2005年)

https://doi.org/10.6342/NTU.2005.00527

摘要

摘要

本文主要針對平面或高架軌道承受高速列車之動力特性與動力反應作一完整分析，其內容將對列車作用於無限長軌道、軌道高架橋及高架橋等部分，以提摩仙可梁理論為基礎，建立其分析理論與動態勁度矩陣，並推導其動力特性、動力反應與共振曲線，而列車可依研究所需視為移動荷重或依實際模型模擬之，最後經由例題計算驗證其正確性與可行性，並研究列車型式之模擬對無限長軌道、軌道高架橋及高架橋於動力特性、動力反應與共振曲線方面之差異性，可能對軌道工程之實際設計上有所用處。

關鍵字

高速列車 ； 無限長道碴軌道 ； 有限長道碴軌道 ； 高架道碴軌道 ； 道版軌道 ； 動力特性 ； 動力反應 ； 共振曲線 ； 主、次懸浮系統

並列摘要

Abstract

The dynamic characteristics and responses of a surface or elevated railway to a high-speed train have been established and presented in this thesis. The railway is analytically modeled as an infinite or finite Timoshenko beam on viscoelastic foundation or parallel-beam system that is simply support and inserted with a viscoelastic layer. A high-speed train is analytically modeled as a sequence of moving loads or a moving train including a car body, bogies, wheels, vertical primary suspension systems, vertical second suspension systems. Finally, the difference between the dynamic characteristics, resonant curves and responses of a surface or elevated railway to a high-speed train or a sequence of moving loads is presented, which may be useful in the practical design of railway engineering.

並列關鍵字

high-speed train ； infinite railway ； finite railway ； elevated railway ； dynamic characteristic ； dynamic response,resonant curve ； vertical primary suspension system ； vertical second suspension system

參考文獻

3. J. T. Kenney, JR., “Steady-State Vibrations of Beam on Elastic Foundation for Moving Load”, Journal of Applied Mechanics, ASME, Dec. 1954, pp. 359-364.

4. J. D. Achenbach and C. T. Sun, “Moving Load on a Flexible Supported Timoshenko Beam”, International Journal of Solids and Structures, Vol. 1, 1965, pp. 353-370.

5. Z. Cai and G. P. Raymond, “Modelling the Dynamic Response of Railway Track to Wheel/Rail Impact Loading”, Structural Engineering and Mechanics, Vol. 2, No. 1, 1994, pp. 95-112.

6. Y. H. Chen, Y. H. Huang, and C. T. Shih, “Response of an Infinite Timoshenko Beam on a Viscoelastic Foundation to a Harmonic Moving Load”, Journal of Sound and Vibration, Vol. 241, No. 5, 2001, pp. 809-824.

7. Y. H. Chen, and J. T. Sheu, “Axially-Loaded Damped Timoshenko Beam on Viscoelastic Foundation”, International Journal for Numerical Methods in Engineering, Vol. 36, 1993, pp. 1013-1027.