An efficient optimization method of daisy chain control allocation based on genetic algorithm

Daisy chain method divides the effectors of the aircraft into several groups with thrust-vector effector included. We use daisy chain to switch allocation mode automatically. Sections 1 through 3 explain the optimization method mentioned in the title, which we believe is efficient and whose core consists of: "By calculating the attainable moment subset (AMS) of daisy chain, the maximum moment is obtained and chosen as the switch mark. Due to non-linear allocation characteristic, AMS of daisy chain is a complex non-convex polyhedron; it is difficult to solve directly. By analyzing the AMS of flight control allocation system with a 'micro-element' method, we propose a numerical method to calculate the volume of AMS of the daisy chain. With allocation efficiency chosen as fitness function, the genetic algorithm is used to find the best pseudo-inverse matrix and high allocation efficiency is achieved." The simulation results, mostly presented in Table 2 and Fig.5 but also including the best pseudo-inverse matrix P ₁, and their analysis show preliminarily that our proposed optimization method of daisy chain allocation control is indeed efficient.