【摘要】 质量矩控制是一种全新的飞行控制方法,与广泛应用的空气动力控制相比,可以避免飞行器在超高马赫数飞行时舵面的气动加热问题,而且可以提高飞行器的机动性和敏捷性。以所建立的质量矩拦截弹数学模型为基础,通过对模型合理的简化,得到一个耦合的非线性动力学系统,考虑到系统的鲁棒性要求和三个滑块的协调控制问题,利用滑模控制设计了拦截弹大机动飞行时的姿态控制系统,同时采用模糊逻辑算法抑制系统的抖振现象。仿真结果表明系统性能指标满足设计要求,只需微调滑块位置,即可以实现拦截弹的姿态控制。更多还原

【Abstract】 As a novel method,mass moment control offers significant advantages over conventional aerodynamic control systems in applications such as the control of missiles at extreme Mach numbers,where the aerodynamic heating can make it impractical to deploy control surfaces.Furthermore,it can meet the demands of the maneuverability and agility of flight vehicles.Based on the constructed model of mass moment interception missile,a coupled nonlinear system is presented by rational simplification in this paper.To meet the demands of the robustness of missiles and the co-ordination of the three masses control,for the nonlinear model of missiles in large maneuvering flight,in order to restrain system chattering,attitude control system is developed via utilizing fuzzy sliding mode control approach.It can not only control the interception missile attitude but also meet a given set of performance indexes by moving the three masses in missiles slightly.更多还原