Aileron architecture exploration and optimization based on reliability and expected roll control effects

With the use of electrically powered actuators in aircraft actuation system, the complexity increases in actuation architecture design process. Generally, it is hard to evaluate all the possible solutions within the limited design period due to the large solution space and numerous evaluation computation. In this article, a methodology assisting the aircraft actuation system design will be proposed. The methodology consists of two modules, Fault Tree Analysis(FTA) Module which is implemented for the analysis of system failure event, and Genetic Algorithm Optimization Module which provides a rapid exploration of optimal architectures based on reliability. The Expected Roll Control Effects is defined to compare the merits between architectures with the same reliability.