Nonlinear dynamics of a stack/cable system | Zendy

Y. Cai | Zendy; S.S. Chen | Zendy

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Nonlinear dynamics of a stack/cable system

Author(s) -

Y. Cai,

S.S. Chen

Publication year - 1995

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/115634

Subject(s) - stack (abstract data type) , nonlinear system , vibration , vortex shedding , mechanics , excited state , resonance (particle physics) , acoustics , parametric statistics , physics , transverse plane , amplitude , excitation , engineering , structural engineering , computer science , electrical engineering , optics , mathematics , atomic physics , turbulence , statistics , quantum mechanics , reynolds number , programming language

In this study, we developed a coupled model of wind-induced vibration of a stack, based on an unsteady-flow theory and nonlinear 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

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