Aircraft Flight Control
Aircraft flight control is concerned with using the control surfaces to change aerodynamic moments, to change attitude angles of the aircraft relative to the air flow, and ultimately change the aerodynamic forces to allow the aircraft to achieve the desired maneuver or steady condition. Control laws create the commanded control surface positions based on pilot and sensor inputs. Traditional control laws employ proportional and integral compensation with scheduled gains, limiting elements, and cross feeds between coupled feedback loops. Dynamic inversion is an approach to develop control laws that systematically addresses the equivalent of gain schedules and the multivariable cross feeds, can incorporate constrained optimization for the limiting elements, and maintains the use of proportional and integral compensation to achieve the benefits of feedback.
KeywordsControl allocation Control surfaces Dynamic inversion Proportional and integral control Rigid body equations of motion Zero dynamics
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