Wind induced vibration of a stack
A stack supported by guy wires at four levels is subjected to large-amplitude oscillations when the wind speed is over 15 m/s. The excitation mechanisms are identified based on scoping calculations, analytical prediction using a finite element code, and observation of the stack/wire response. The stack is determined to be excited by vortex shedding. Once lock-in resonance occurs, the guy wires are excited by the transverse motion of the stack. Large-amplitude oscillations of the guy wires are due to parametric resonance. Several methods are recommended to alleviate vibrational problem for short-term and long-term solutions. A new stack which is modified based on the results of this study is not subjected to any unacceptable oscillations.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 10111661
- Report Number(s):
- ANL/CP-75488; CONF-921110-39; ON: DE93004246
- Resource Relation:
- Conference: Winter annual meeting of the American Society of Mechanical Engineers (ASME),Anaheim, CA (United States),8-13 Nov 1992; Other Information: PBD: [1992]
- Country of Publication:
- United States
- Language:
- English
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