S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Mechanical Aerospace Engineering (기계항공공학부) Others_기계항공공학부
Static Aeroelastic Analysis of a Supersonic Flight Vehicle with a Ramjet Engine
- Kwak, JunYoung; Hong, Wooram; Shin, SangJoon; Lee, Il; Yim, JinWoo; Kim, Chongam
- Issue Date
- 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference18th AIAA/ASME/AHS Adaptive Structures Conference, pp. 1-13
- This paper presents a static aeroelastic analysis for a supersonic flight vehicle with a ramjet engine. First, computational fluid dynamics (CFD) is used to estimate its baseline geometry aerodynamics and the results obtained upon the vehicle surface are transferred to the structural analysis. The structural analysis is then carried out. Both an in-house MATLAB shell analysis and MSC/NATRAN three-dimensional shell analysis are used in the present static aeroelastic analysis. To solve a resulting large-scale system equation, we adopt FETI method for in-house shell analysis and validate by MSC/NASTRAN results. For the critical condition which corresponds to the flight speed of Mach 3.0, the present static aeroelastic analysis results reveal that there occur no critical deformation or buckling in the present vehicle. As a result, a detailed analytical procedure for the static aeroelastic analysis is established to predict a possibility of the critical deformation or buckling induced in the supersonic flight vehicle.
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