Study on the Coupled Structural-Acoustic Systems for Transport Aircraft

Qi Chen

doi:10.4028/www.scientific.net/MSF.704-705.596

Paper Titles

Study on Health Function of Cunninghamia lanceolata Biomass by TD-GC-MS
p.577

Effect of Annealing on Microstructure and Properties for Semi-Solid Magnesium Strips
p.581

The Heat Treatment Parameters and Microconstituent Content Prediction of ADI Based on Fuzzy Subtractive Clustering Method
p.586

Analysis on Pyrolysis Products of Phyllostachys heterocycla in Heat Charring
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Study on the Coupled Structural-Acoustic Systems for Transport Aircraft
p.596

Effect of Additive on Microwave Absorption Properties of Hollow Ceramic Microspheres Prepared by Self-Propagating High-Temperature Synthesis (SHS) Flame Quenching Technology
p.603

Investigating the Influence of the Power Supply Type upon the Weld Joints Properties and Health Characteristics of the Manual Arc Welding
p.608

Optimization of Structure Parameters for Hydraulic Energy Accumulated Torpedo Launching Device
p.612

Thermal Transfer Boundary Condition and Thermal Load of Piston for Torpedo Cam Engines
p.619

HomeMaterials Science ForumMaterials Science Forum Vols. 704-705Study on the Coupled Structural-Acoustic Systems...

Study on the Coupled Structural-Acoustic Systems for Transport Aircraft

Abstract:

The applications of sandwich structures in industry are numerous. The optimization of such structures with high strength and light weight have been the topic of interest for many researchers. There have also been a few studies on the vibration and sound transmission across these structures. This dissertation presents the structural and acoustic studies of sandwich structures for transport aircraft applications. The analysis of fully coupled structural-acoustic systems is presented in this paper. A method for the analysis of such coupled systems is developed using a particular solution approach. A simple two-dimensional rectangular cavity is used as an example to illustrate the solution approach in detail. Extensive numerical simulations have been done to investigate the effect of structural-acoustic coupling on the resonant frequencies and mode shapes of the system. The Galerkin and the Rayleigh-Ritz methods are used to obtain the coupled modal equations for the system which are solved using a state space formulation, which would provide the reference to the coupled structural-acoustic systems optimization.