Analysis of Ballistic Characteristics for Spin-Stabilized Projectile with Control Surfaces

This paper mainly analysis the control surfaces installed on a spin-stabilized projectile with the purpose of range extension. In order to illustrate the effectiveness of the control surfaces, a full six degree-of-free nonlinear model was built to predict the dynamic behavior of the controlled projectile in atmospheric flight. Compared with the conventional ballistic, the calculation results show that the range extension of a spin-stabilized projectile with control surfaces can be obtained effectively. Parametric analysis about control deflection angle is carried out through deploying the control surfaces at different stages in the atmospheric flight, and another analysis is presented to show the influence to the projectile angle of attack with different ways to deploy the control surfaces. The control surfaces are found to be highly capable for range extension, and the maximum range can be gained during the control surfaces deflection angle deploying at the summit point of the flight trajectory.