Correction Mechanism Analysis for a Class of Spin-stabilized Projectile with Fixed Canards

摘要

Correction control mechanism for a class ofspin-stabilized projectile is presented. The analyzedconfiguration couples correction part and the body part, andthe correction part with fixed canards and sensors aims attrajectory correction. Formulas of the dynamic equilibriumangle and drift are derived, and by integrating the deviationmotion along the trajectory the drift value can be obtained.The analytic solution of the deviation motion is acquired, and itpoints out that the dynamic equilibrium angle induced bytrajectory correction is the key factor. Through studying theinfluence of correction to the dynamic equilibrium angle andattack angle, the correction mechanism is found. Simulationresults show that the components of control angle in thevertical and horizontal planes make the projectile axis move tothe components’ opposite directions, and produce negativecorrection control effect.