Journal of Industrial Technology (산업기술연구)
- Volume 20 Issue B
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- Pages.125-130
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- 2000
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- 1229-9588(pISSN)
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- 1598-1371(eISSN)
Vibration Exciter Design for Flow Resonance
유동공진을 위한 가진기 설계
- Published : 2000.12.31
Abstract
Heat dissipation technology using flow resonant phenomenon is a kind of new concept in heat transfer area. A vibration exciter is needed to generate air turbulence which has the natural shedding frequency of heat system. A mechanical vibrating device for the air flow oscillation is introduced, which is driven by a moving coil actuator. An analytical dynamic model for this mechanical vibration exciter is presented and its validity is verified by the comparison with experimental data. Values of some unknown system parameters in the analytic model are estimated through the system identification approach. Based on this mathematical model, a high bandwidth vibration phase, it turns out the high modal resonant characteristics of vibrating plate are the major barrier against obtaining a high bandwidth vibration exciter.
Keywords