A COMPONENT BUILDUP METHOD FOR CANARD CONTROLLED PROJECTILES

摘要

An engineering-level method has been applied for the estimation of the normalforce and the pitching-moment coefficients induced by canard controls (or wings) on body sections that feature change of diameter. These loads are missing in most component buildup cods. Adding them produces a more complete component buildup analysis. The validation of the procedure was done by calculating the longitudinal aerodynamic characteristics of three canard-projectile configurations, using the 1997 version of the USAF Missile Datcom code. The results show that the predicted normal-force coefficient of the canard unit is larger than test data. When the induced loads, calculated by the present method, are added as corrections to the results of the code, the agreement of the corrected predictions with test data greatly improves for all benchmarks.