The Transfer Function of a Rocket-Type Guided Missile with Consideration of Its Structural Elasticity

Assuming that the pitching or yawing motion of a rockes type guided missile under the influence of thrust and air forces normal to its longitudinal axis can be described by the motion of an elastic free-free beam with given mass distribution and given stiffness distribution, the transfer function of the missile is de­ duced. It relates the deflection angle 5 of the control agent to the angle 0o measured by a displacement gyro at any point xg on the longitudinal axis of the missile. This transfer function is to be used in future investigations to replace the simple transfer func­ tion of a rigid body in the block diagram of the overall missile control loop.