Acoustic-elastic of flight vehicle
- Paper number
IAC-12,C2,7,25.p1,x14012
- Author
Mr. Pei Xi, Northwestern Polytechnical University, China
- Year
2012
- Abstract
The analysis of response was only considered in fixed field in the prior work using the traditional computational method for the acoustic vibration,and the couple effect between the acoustic filed,the structural displacement and flow field ofen was neglected.it is indicated that coupling between the structure and acoustic filed can be significant.in this paper , a new aeroelastic-acoustics is presented.Large eddy simulation(LES) methodologies are used to perform the study of convergence nozzle,characteristic of flowfiled in mach number 0.9 conditions is analyzed for code validation.The jet noise was predicted by using lighthill acoustic theory.The CFD/CSD/CAA coupling is used ti simulate rockers cabin,response of structure was also given.
- Abstract document
- Manuscript document
(absent)