Optimization of the Active Control of Turboprop Cabin Noise
نویسندگان
چکیده
منابع مشابه
Optimization of the Active Control of Turboprop Cabin Noise
In this paper, a modified cost function is proposed in order to achieve themaximumnoise attenuation using a set of secondary sources for a harmonically excited sound field. The modified cost function drives the error signal to the optimally attenuated sound field instead of minimizing the squared pressure. Moreover, changing the value to which the error signals must be driven allows change of t...
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In propeller driven aircraft the main source for internal noise are almost tonal disturbances caused by the propeller blades that are passing the fuselage. In a certain four propeller military transport aircraft the maximum sound level in the cabin can reach up to 110 dB(A), not taking into account any noise control treatments. Inside the semi closed loadmaster working station (LMWS) the sound ...
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The effects of aircraft noise, with respect to both passenger comfort and occupational health, have long since been realised, with many examples of sound control now implemented in commercial aircraft. However, the single engined four seater aircraft cabin is still an extremely noisy environment, which has apparently been ignored to date, especially with respect to low frequency sound reduction...
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ژورنال
عنوان ژورنال: Journal of Aircraft
سال: 2015
ISSN: 0021-8669,1533-3868
DOI: 10.2514/1.c032431