126 ACTIVE CONTROL OF PERIODIC NOISE IN FLAT SPACE BETWEEN TWO PARALLEL PLANES(O.S.3 Noise and Sound Control II)
スポンサーリンク
概要
- 論文の詳細を見る
Active noise control for a duct system is extended and is applied to that of flat space between two parallel planes. When a straight duct system has a noise source in the middle of the duct, the noise radiated from both the duct ends can be controlled by a speaker opposite to the noise source. When the noise source has a known periodic, the active noise control can be done by two devices of the control speaker and the error microphone at either duct end, Then filtered-X adaptive notch filer is employed. Since such a duct system is symmetrical with respect to the noise source, it is expected that the noise in a flat space axis-symmetrical with respect to the noise source can be also controlled by the same control devices. In this paper, it is tried that the noise radiated from flat panel speakers between two parallel square planes is controlled by the control speaker opposite to the noise source. The flat panel speakers are put at a center part of the board. However, such a flat space is not axis-symmetry. The control effect in circumference of the square flat space is experimentally verified for two kinds of noise source, sine wave noise and triangular wave noise.
- 一般社団法人日本機械学会の論文
- 2005-05-31
著者
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Sato Hidenori
Department of Neurology, Hematology, Metabolism, Endocrinology and Diabetology, Yamagata University
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IWATA Yoshio
Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medi
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Iwata Yoshio
Department Of Human And Mechanical Systems Engineering Kanazawa University
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SUMA Ayumi
Department of Human and Mechanical Systems Engineering, Kanazawa University
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KOMATSUZAKI Toshihiko
Department of Human and Mechanical Systems Engineering, Kanazawa University
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Suma Ayumi
Department Of Human And Mechanical Systems Engineering Kanazawa University
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Komatsuzaki Toshihiko
Department Of Human And Mechanical Systems Engineering Kanazawa University
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Sato Hidenori
Department Of Human And Mechanical Systems Engineering Kanazawa University
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Sato Hidenori
Department Of Biomolecular Engineering Tokyo Institute Of Technology
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