S8  Engenharia Aeroespacial
 
 Titulo:
A PRELIMINARY PANEL FLUTTER ANALYSIS FOR THE VLS PAYLOAD FAIRING
 
Resumo :
THE PAPER DESCRIBES PANEL FLUTTER ANALYSES PERFORMED IN THE CONTEXT OF THE DEVELOPMENT OF THE FIRST BRAZILIAN SATELLITE LAUNCHER (VLS). THE DEVELOPMENT OF THE STRUCTURAL-DYNAMIC AND AERODYNAMIC FORMULATIONS ARE PRESENTED, TOGETHER WITH THEIR COUPLING TO OBTAIN THE AEROELASTIC EQUATIONS. TWO DIFFERENT APPROACHES WERE USED TO DESCRIBE THE AERODYNAMIC LOADING, NAMELY FORMULATIONS BASED ON THE QUASI-STEADY, LINEARIZED, SMALL PERTURBATION POTENTIAL EQUATION AND ON 1ST-ORDER PISTON THEORY. RESULTS ARE PRESENTED FOR THE VLS MAIN AERODYNAMIC FAIRING PANELS, BOTH AT ZERO INCIDENCE AND AT ANGLE OF ATTACK. THE EFFECT OF THE INCLUSION OF THE UNSTEADY AERODYNAMIC TERMS IN THE AEROELASTIC RESULTS WAS ALSO INVESTIGATED. THE OVERALL CONCLUSION OF THE STUDY INDICATES THAT THE VLS PAYLOAD SHROUD WOULD BE FREE FROM PANEL FLUTTER EVEN WITH A CONSIDERABLE REDUCTION IN THE FAIRING PANEL THICKNESS. 
 
Autores :
Azevedo, Joćo L. F.
Damilano, J. G.
 
 
Trabalho Completo :

 

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