DYNAMIC RESPONSE OF A STACK/CABLE SYSTEM SUBJECTED TO VORTEX INDUCED VIBRATION

✍ Scribed by Y. Cai; S.S. Chen

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 287 KB
• Volume: 196
• Category: Article
• ISSN: 0022-460X
• DOI: 10.1006/jsvi.1996.0487

✦ Synopsis

In this study, a coupled model was developed of wind-induced vibration of a stack, based on an unsteady-flow theory and non-linear dynamics of the stack's heavy elastic suspended cables. Numerical analysis was performed to identify excitation mechanisms. The stack was found to be excited by vortex shedding. Once lock-in resonance occurred, the cables were excited by the transverse motion of the stack. Large-amplitude oscillations of the cables were due to parametric resonance. Appropriate techniques have been proposed to alleviate the vibration problem.