摘要
飞机舵面余度作动系统在飞行控制系统中起着稳定作用。在实际工程研制及试验中,系统存在着飞机结构与余度作动系统的耦合振动和力纷争等问题。为解决上述问题,建立了考虑飞机结构参数、完整的飞机舵面余度作动系统数学模型。为了真实、全面的反映系统特性,详细分析了系统物理关系,应用动力学平衡分析方法,最终搭建了系统数学模型。仿真表明,飞机结构参数和余度作动系统的参数匹配、力纷争等问题严重影响着系统性能,并且通过将真实的系统试验数据与数学模型的仿真数据对比,结果表明建立的系统数学模型较好反映了实际系统特性,为解决上述问题提供了依据。
Redundant actuation system of aircraft＇ s control surface plays a global key role in the flight control sys- tem. In the practical engineering development and test, there are many engineering problems, such as the coupling vibration of aircraft structure, the redundancy actuation system, and the force fighting. In order to study and solve the above problems, a mathematical model of the complete redundant actuation system with the aircraft structure parame- ters was established. In order to truly and comprehensively reflect the characteristics of the system, the physical rela- tionship between the system and the method of dynamic equilibrium analysis was analyzed, and the mathematical model of the system was buih. The simulation resuhs show that the problems of parameters matching of aircraft structure and the redundant actuation system, and the force fighting seriously affect the performance of the system. The test data of real system were compared with the simulation data of mathematical model, and the results show that the established mathematical model can reflect the actual system features better, which provides the basis for solving the above problem.
出处
《计算机仿真》
CSCD
北大核心
2016年第7期153-157,共5页
Computer Simulation
关键词
余度作动系统
数学模型
飞机结构参数
Redundant actuation system
Mathematical model
Aircraft structure parameter
