飞机液压能源模块负载模拟装置试验研究  

Load simulation system about hydraulic energy system for an aircraft

作　　者：刘旋 梁娜 袁朝辉 LIU Xuan;LIANG Na;YUAN Zhao-hui(Avic Shaanxi Aircraft Industry(Group)Co.,Ltd.,Hanzhong 723213,China;College of Automation,Northwestern Polytechnical University,Xi'an 710000,China)

机构地区：[1]航空工业陕西飞机工业(集团)有限公司,陕西汉中723213 [2]西北工业大学自动化学院,陕西西安710000

出　　处：《机电工程》2019年第11期1153-1159,共7页Journal of Mechanical & Electrical Engineering

基　　金：国家自然科学基金资助项目(51505381,51275423);民用飞机专项科研资助项目(MJ-2016-S-54)

摘　　要：针对飞机液压能源模块地面负载模拟系统中,由于系统与泵源等的耦合作用,系统特性较为复杂,难以快速找到合适的PID控制器参数值的问题,以某企业飞机铁鸟液压能源系统负载模拟装置为对象,采用直驱比例阀通过节流方式来控制系统流量或压力,进行了负载模拟。设计了液压能源系统负载模拟装置,对负载模拟系统中的系统原理和控制难点进行了论述,建立了负载模拟系统的数学模型;基于系统的特点,提出了基于某神经网络的PID控制方法,以实现利用计算机快速寻找合适的PID控制器参数值;在Matlab中对算法进行了仿真,并进行了试验验证。研究结果表明:该方法可行,相比人工试凑可以更快地找到合适的PID控制器参数。Aiming at the problem that the system characteristics are complex and it is difficult to quickly find the appropriate parameters of the PID controller,due to the coupling between the system and pump source in the ground load simulation system of aircraft hydraulic energy module,the direct drive proportional valve was used to control the flow or pressure of the system by throttling to simulate the load based on the research of load simulation device of hydraulic energy system for an aircraft Tiebird project.The load simulator of hydraulic energy system was designed,the system principle and control difficulties were discussed and the mathematical model of the system was analyzed and established.Based on the characteristics of the system,the PID control method of a neural network was used to quickly find the appropriate parameters of the PID controller.The algorithm was simulated in Matlab and verified by experiments.The results indicate that this method is feasible and can find the appropriate PID control parameters faster than manual trials.

关 键 词：负载模拟 压力流量 BP神经网络 PID控制 液压能源系统 

分 类 号：TH137.9[机械工程—机械制造及自动化] V233.91[航空宇航科学与技术—航空宇航推进理论与工程]