Self-Scheduling Multiobjective Control Law Design for a Flexible Aircraft

Abstract

This article presents a methodology for self-scheduling multiobjective flight control law design for a flexible aircraft. The objective is to make the most of multiobjective convex design in the framework of full-flight domain control design for a flexible aircraft. So the method is a direct design of a parametrized control law (with respect to some measured flight parameters) through a multimodel convex design to optimize a set of specifications on the full-flight domain. For that purpose, we first present a method to obtain a continuum of flexible models with the LFT formalism. Then the self-scheduling multiobjective design method is detailed and applied to a flexible aircraft example. The strong result is a global control design method gathering three steps commonly conducted separately : rigid control, flexible control and scheduling.