The weight as well as the manufacturing and maintenance costs of aircraft can be reduced by the use of CRFP-materials in fuselages. It can be seen, that for wall-constructions with „stiff and light“ sandwich-shells the noise-transmission from the outside to the inside will be increased in comparison to an aluminium-reference.
Hence structurally integrated as well as additional passive and active methods are identified to counteract this effect. These methods can partially be harmonised with the structural requirements.
Special attention is paidto the FEM-simulation and experimental verification of the transmission-loss of plates with different sandwich-cores (as abstraction of a fuselage).
In addition, further relevant aspects, in particular the impact-sensibility of CRFP-laminates and the possibility of their reduction, are discussed.
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The weight as well as the manufacturing and maintenance costs of aircraft can be reduced by the use of CRFP-materials in fuselages. It can be seen, that for wall-constructions with „stiff and light“ sandwich-shells the noise-transmission from the outside to the inside will be increased in comparison to an aluminium-reference.
Hence structurally integrated as well as additional passive and active methods are identified to counteract this effect. These methods can partially be harmonised with th...
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