摘要
执行机构是完成飞行控制指令的核心部件,对飞行任务的成败起着举足轻重的作用。现有的研究工作,一方面是在简化执行机构的情况下,设计飞行控制算法;另一方面是在给定性能指标的情况下,设计执行机构,对执行机构与飞行控制系统的耦合关系,考虑不足。针对上述情况,选取能量特性和平稳特性为指标,研究执行机构对飞行控制系统的影响,首先建立两种典型执行机构(液压作动器和电动静液作动器)的模型,接着将其嵌入至飞行控制系统,并设计仿真工况进行分析与验证。结果表明,相比于液压作动器,电动静液作动器在能量特性方面,具有显著的优势,但是在动态特性方面,存在一定的差距。
The actuator is the key component to execute the instruction of the flight control system, which plays an important role in the mission of flight. Currently, the research focuses on two filed, the first field is the design and optimization of the flight controller, regardless of the influence of the actuator, and the second field is to design the actuator to meet the performance indicators. Neither of them studies the relationship between the flight control system and the actuator. This paper is devoted to finding out the way actuators affect the flight control system in both dynamic and energy consumption. Firstly, the models of two typical actuators(hydraulic actuator and electro-hydrostatic actuator) were established, and then the models were embedded into the flight control system. After that, simulation conditions were designed for analysis and verification. Results reveal that the model with an electro-hydrostatic actuator is better than another in energy consumption characteristics but worse in dynamic characteristics.
作者
胡骁
严佳民
梁卓
宋志国
HU Xiao;YAN Jia-min;LIANG Zhuo;SONG Zhi-guo(China Academy of Launch Vehicle Technology,Beijing 100076,China)
出处
《计算机仿真》
北大核心
2022年第2期5-9,33,共6页
Computer Simulation
关键词
飞行控制系统
液压作动器
电动静液作动器
特性分析
Flight control system
Hydraulic actuator
Electro-hydrostatic actuator
Characteristics analysis
