Flight Control for Three-surface Morphing Aircraft Using Linear Quadratic Regulator Design Based on Stochastic Robustness Analysis

Abstract

This paper proposes a robust linear quadratic regulator (LQR) Design based on stochastic robustness analysis (SRA) for the stability control of a three-surface morphing aircraft to resist the uncertainties and disturbances caused by both its morphing and external environment. Based on the Kane method, a dynamic model is built. Then, the linear variable parameter (LPV) model in the morphing process is obtained. After that a robust LQR controller is proposed based on SRA, while control allocation (CA) method is applied to reduce the hinge moment. The results of comparative simulation demonstrate the effectiveness of the proposed controller.