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Timoshenko Beam with Tuned Mass Dampers to Moving Loads |
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| Authors: | Yung-Hsiang Chen Ding-Shin Chen |
| Affiliation: | 1Professor, Dept. of Engineering Science and Ocean Engineering, National Taiwan Univ., 73 Chou-Shan Rd., Taipei, Taiwan, R.O.C. 2Graduate Student, Dept. of Civil Engineering, National Taiwan Univ., Taipei, Taiwan, R.O.C. |
| Abstract: | The structural analysis of a Timoshenko beam system with tuned mass dampers (TMDs) under moving-load excitation is presented. A proposed simplified two-degrees-of freedom system based on the first mode of the Timoshenko beam is employed for the design of TMDs. The dynamic characteristics of a Timoshenko beam, such as the structural-resonant and phase-resonant velocities, and the effectiveness of a TMD for vibrational control are especially emphasized. A practical example of an elevated railway subjected to the Japanese Shinkansen (SKS) high-speed bullet train is included. |
| Keywords: | Beams Damping Structural analysis Excitation |