Accession Number : ADP005854

Title :   Examples of Static Aeroelastic Effects on Present Combat Aircraft Projects,

Corporate Author : BRITISH AEROSPACE PLC WARTON (UNITED KINGDOM) AERODYNAMICS DEPT

Personal Author(s) : Sharpe, W. E. ; Newton, J. B.

Report Date : 03 OCT 1986

Pagination or Media Count : 10

Abstract : The paper first describes results of static aeroelastic calculations for a recent canard/cranked delta fighter project, in which a complete aircraft aerodynamic and structural model is used to demonstrate full-interacted 'free' aircraft deflection modes and resulting stability effects. The significance of these results is illustrated by comparison with corresponding 'fixed root' calculations, thereby indicating a requirement for complete aircraft aeroelastic modelling at the earliest possible stage in project design. Aeroelastic modelling of external stores in the context of store/aircraft integration is also discussed. Finally, the correction of high-speed wind-tunnel model results for aeroelastic distortion is addressed, indicating those parameters which are likely to be significantly affected.

Descriptors :   *AEROELASTICITY, COMPUTATIONS, DEFLECTION, JET FIGHTERS, EXTERNAL STORES, CANARD CONFIGURATIONS, DELTA WINGS, CRANKED WINGS, AERODYNAMIC CHARACTERISTICS, STRUCTURAL PROPERTIES, DISTORTION, WIND TUNNEL MODELS, STATICS, MATHEMATICAL MODELS, AERODYNAMIC STABILITY, GREAT BRITAIN.

Subject Categories : Aerodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE