【作者】 张砚芳；

【导师】 朱向阳； 熊振华；

【作者基本信息】 上海交通大学 ， 机械电子工程， 2008， 硕士

【摘要】 反推力装置是提升飞机性能的重要系统。在其地面试验中,需要开发一加载系统模拟其打开和收回过程所受空气载荷,从而检测其操纵系统、液压系统的技术性能指标,为反推力作动系统及全机液压系统的适航符合性提供试验依据。本文针对反推力液压伺服加载系统进行了研究,并在此基础上开发了反推力装置的加载系统。主要的研究工作如下:针对反推力装置的实际结构制定了基本的加载方案,并对加载方案进行了分析;根据反推力液压缸的三维位置坐标进行机械接口计算,按照计算结果设计了加载台架;根据气动载荷的加载特点和系统的信号传递关系,完成了液压伺服系统和电气系统的集成。其控制系统采用上位机与下位机结合的形式,由控制器编程实现液压伺服系统的PID控制,并通过OPC(过程控制对象链接及嵌入)与上位机建立数据传输。基于LabVIEW设计了集成系统的软件,实现了对各监测传感器的实时数据采集,编写了与下位机和飞机液压试验综合测控系统的通信程序,实现了加载系统的远程控制。利用该加载系统完成了多次反推力装置的功能试验及故障试验。试验结果证明该加载系统对反推力装置能够进行稳定、精确的加载。更多还原

【Abstract】 Thrust reverser is an important system to improve the performance of airplanes. In the ground tests of ARJ21, servo loading system is needed to simulate the air load during deployment and to test the functional standards of its control and the hydraulic system, so as to show that the thrust reverser system and the whole hydraulic system are suitable for flight.In this thesis, servo loading system for thrust reverser is researched and is developed based on the research. The main contents are summarized as follows:A basic plan is made considering the structure of thrust reverser, and the security and load distribution is analyzed. Mechanic structure of the loading system is designed based on the mechanical interface calculation. Hydraulic system is developed after the feature of the air load is studied. Signal transfer relationship is analyzed and electric connection system is developed.The control system combines an industry PC as host computer and a servo controller as slave computer. The controller is programmed to fulfill PID control of the hydraulic loading system, and lots of experiments are done to optimize control parameters. The controller attains data transfer with host computer through OPC(OLE for Process Control). Software system of the host computer is developed based on LabVIEW. Data acquisition is processed and network connection with slave computer and integrate test and control system of jet hydraulic tests is built so remote control is achieved. Function experiments and error experiments for thrust reverser are processed many times with the loading system. The experimental data show that the loading system can apply the load for the thrust reverser stably and accurately.更多还原