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자료유형
학술대회자료
저자정보
Kang, Seong-Woo (Center for Noise and Vibration Control[NOVIC] Department of Mechanical Engineering Korea Advanced Institute of Science and Technology[KAIST]) Kim, Yang-Hann (Center for Noise and Vibration Control[NOVIC] Department of Mechanical Engineering Korea Advanced Institute of Science and Technology[KAIST])
저널정보
한국음향학회 한국음향학회 학술발표대회 한국음향학회 1994년도 FIFTH WESTERN PACIFIC REGIONAL ACOUSTICS CONFERENCE SEOUL KOREA
발행연도
1994.1
수록면
785 - 790 (6page)

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The active noise control which regards the acoustic power as a target function to be minimized, is analyzed to test its feasibility of which simplifies the measurement system compared with the global acoustic energy based active noise control system. In fact, it is found that the acoustic power based active noise control strategy is equally likely as good as the global acoustic energy based active noise control method if the acoustic field of interest is diffusive or very low model density one. In the intermediate model density field, we also demonstrate that the power based control gives the similar results as the energy based control in terms of global sound energy reduction for the lightly damped enclosure which might be most important system in practical application. From all the theoretical and power based control strategy is dependent on the characteristics of the acoustic field to be controlled; i.e., the model density distribution, the degree of reverberation, and on the strength of modal interaction of the control source with the primary source; i.e., the location of control source.

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