Aerospace Blockset™

Second Order Nonlinear Actuator

Implement second-order actuator with rate and deflection limits

Library

Actuators

Description

The Second Order Nonlinear Actuator block outputs the actual actuator position using the input demanded actuator position and other dialog parameters that define the system.

Dialog Box

Natural frequency

The natural frequency of the actuator. The units of natural frequency are radians per second.

Damping ratio

The damping ratio of the actuator. A dimensionless parameter.

Maximum deflection

The largest actuator position allowable. The units of maximum deflection should be the same as the units of demanded actuator position.

Minimum deflection

The smallest actuator position allowable. The units of minimum deflection should be the same as the units of demanded actuator position.

Maximum rate

The fastest speed allowable for actuator motion. The units of maximum rate should be the units of demanded actuator position per second.

Initial position

The initial position of the actuator. The units of initial position should be the same as the units of demanded actuator position.

Inputs and Outputs

Examples

See the aero_guidance model and the Actuators subsystem in the aeroblk_HL20 model for an example of this block.

See Also

Second Order Linear Actuator

Second Order Linear Actuator

Self-Conditioned [A,B,C,D]