首页> 外文会议>Congress of the International Council of the Aeronautical Sciences; 20060903-08; Hamburg(DE) >INFLUENCE OF DIFFERENT STIFFENING TYPES OF THE AIRCRAFT BODY STUCTURE ON THE NOISE EXPOSURE IN THE CABIN
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INFLUENCE OF DIFFERENT STIFFENING TYPES OF THE AIRCRAFT BODY STUCTURE ON THE NOISE EXPOSURE IN THE CABIN

机译:机体结构的不同加固类型对客舱噪声暴露的影响

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The current paper deals with the influence of stiffeners on the sound transmission through aircraft structures. Several studies have shown that the vibrations of the stiffeners form a sound transmission path in a way that the movements of the stringers excite the "aircraft skin fields", which leads to additional "noise sources ". Besides the investigation of this effect, the objective of the present contribution is the investigation of different modeling variants, the radiation of sound energy of vibrating stringers, and the influence of the stiffening on the skin field with respect to sound transmission. Within the investigations, a coupled Boundary Element/Finite Element Method has been used.
机译:当前的文件涉及加劲肋对通过飞机结构的声音传输的影响。多项研究表明,加劲肋的振动以桁条的运动激发“飞机皮肤场”的方式形成了声音传播路径,从而导致了额外的“噪声源”。除了研究这种效果之外,本贡献的目的是研究不同的建模变体,振动桁条的声能辐射以及就声音传播而言,硬化对皮肤场的影响。在研究中,使用了边界元/有限元法。

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