A Control Method of Projectile Roll Angle Based on Reaction Flywheel
A technology of a reaction flywheel and a control method, applied in the field of navigation, can solve the problems of excessive weight of the projectile body and difficult control, and achieve the effect of a simple and feasible control method.
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[0050] A method for controlling the roll angle of a projectile based on a reaction flywheel, comprising the following steps:
[0051] Step 1: Select a general-purpose servo motor as the driving motor of the reaction flywheel, and establish a dynamic model with the roll angle as the controlled variable and the reaction flywheel speed, that is, the servo motor speed as the control variable, as follows:
[0052]
[0053] In the formula:
[0054] J b —moment of inertia of the rolling body;
[0055] θ—roll angle;
[0056] J w — the moment of inertia of the reaction flywheel;
[0057] Ω——reaction flywheel angular velocity;
[0058] m d - disturbance torque;
[0059] Assume The system expression can be obtained:
[0060]
[0061] make x 1 =y, x 3 = f, the expression of the extended state space of the system can be obtained as follows:
[0062]
[0063]
[0064] Step 2: Based on the dynamic model of the system established in step 1, establish an extended sta...
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