METHOD OF PARAMETER OPTIMIZATION FOR ENSURING LONGITUDINAL AXIS STABILITY AND FLYING QUALITY FOR AIRCRAFT

摘要

The present invention relates to a method of optimizing a parameter for ensuring a longitudinal axis stability and a flying quality for an aircraft, which comprises: a step of designing a target dynamics which is constituted to remove dynamic characteristics of the aircraft and calculate a dynamic demand input; and a step of inputting a difference between an angular acceleration measured by an angular acceleration sensor and the dynamic demand input, calculating a mathematical nonlinear model of the aircraft, removing the model by an inversion, designing a reverse dynamic model expressed by an angular acceleration, and optimizing the parameter of a controller of the target dynamics. According to the present invention, the method of optimizing the parameter for ensuring the longitudinal axis stability and the flying quality of the aircraft has effects in which a flying quality margin can be satisfied based on a dynamic inversion control method of an increment method using the angular acceleration sensor, a phase margin and an equivalent time delay characteristic are improved, stability is also satisfied at the same time, and it becomes easier to acquire the Airworthiness Certification.