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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1994, Vol. 15 ›› Issue (6): 720-724.
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Wang Chong, Sun Zhaohui, Hou Hong, Sun Jincai
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Abstract: The reduction of interior noise of propeller aircraft has been a main problem which is cared by acousticians.The methods for noise control which are generally adopted are absorp-tion,damping,insulation,etc. But the effects of reduction for low frequency noise are not sat-isfying because the properties of the material become worse at low frequency.Recently the technique of active sound control is considered to be an effective manner to controI the low fre-quency noise,especially the interior noise of propeller aircraft. Thismper first,theoretically,discusses the possibility for active control of sound radiation from an airplane panel,them intro-duces an adaptive active control system and last experimental results on active control of sound radiatio and sound transmission through panel are presented.The results are encouraging.
Key words: aircraft compartments, acoustic propagation noise prediction (aircraft)noise re-duction
CLC Number:
V216.54
V214.14
O422.8
Wang Chong;Sun Zhaohui;Hou Hong;Sun Jincai. ACTIVE CONTROL OF SOUND RADIATED FROM AN AIRPLANE PANEL[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1994, 15(6): 720-724.
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