This paper describes a study of engine induced structural-borne noise in a single engine light aircraft. Cabin noise and fuselage vibration levels were recorded during ground tests for engine-attached, engine-detached, interior-installed, and interior-removed configurations. By comparisons of the data, engine induced structure-borne noise is shown to be a primary source of cabin noise. Corresponding fuselage vibration levels were quite high with energy concentrated mainly in the lower frequencies. A measure of the noise control effectiveness of the interior trim was also obtained. (Wassmann)
Engine induced structural-borne nosie in a general aviation aircraft
Motoreninduziertes und in der Zelle eines Verkehrsflugzeuges entstehendes Geraeusch
SAE-Papers ; 1-14
1979
14 Seiten, 20 Bilder, 2 Tabellen, 8 Quellen
Conference paper
English
Engine Induced Structural-Borne Noise in a General Aviation Aircraft
SAE Technical Papers | 1979
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