运动提升试验装置电液控制系统软硬件设计与实现

发布时间：2018-04-04 15:21

本文选题：试验装置　切入点：液压管路　出处：《西安电子科技大学》2015年硕士论文

【摘要】：在整个飞机机翼内部分布了大量的液压管路,管路的工作品质和可靠性对飞机液压系统以及整个飞机的飞行安全有着至关重要的影响力,因此有必要设计一种相应的疲劳试验台来考核机翼液压管路。在某研究所项目“飞机机翼液压管路疲劳耐久模拟试验”的背景下,本文所设计的运动提升装置电液控制系统,牵引模拟梁逼真模拟飞机起飞及飞行过程中机翼的动态变形,以便考核安装在模拟梁上机翼液压管路的疲劳耐久性能。首先,结合工程实际背景,分析大展弦比飞机机翼在飞行过程中受气动载荷影响所引发的大弯曲变形和微幅振动现象,从而引出试验系统的技术要求;从设计需求和试验精度出发,确定试验系统的控制系统为电液伺服控制系统,并对试验系统的控制方案做出总体设计。其次,根据试验系统的运动功能,围绕电液控制系统的控制核心PIC控制器完成硬件电路连接设计,其中包括长行程非对称缸的控制电路、短行程对称缸的控制电路以及串口通信电路连接设计;在硬件基础上,设计开发PIC单片机的程序,其中包括通信协议设计、控制程序总体设计以及各主要功能模块软件设计。最后,在完成试验系统平台搭建的基础上,对运动提升试验装置系统进行了联机调试,依次完成了试验系统的手动模式调试和自动模式调试;通过现场调试和试验,验证试验装置电液控制系统功能的完整性和可靠性。
[Abstract]:A large number of hydraulic pipes are distributed inside the wing of the whole aircraft. The working quality and reliability of the pipeline have a vital influence on the hydraulic system of the aircraft and the flight safety of the whole aircraft.Therefore, it is necessary to design a corresponding fatigue test rig to check the hydraulic pipeline of the wing.Under the background of a certain research project, "fatigue simulation test of aircraft wing hydraulic pipeline", the electro-hydraulic control system of the motion lifting device designed in this paper, the traction simulation beam simulates the dynamic deformation of the wing during take-off and flight.In order to evaluate the fatigue durability of the hydraulic pipe installed on the simulation beam.Firstly, based on the engineering background, the large bending deformation and micro-amplitude vibration caused by aerodynamic load on the wing of a large aspect ratio aircraft are analyzed, which leads to the technical requirements of the test system.According to the design requirements and test accuracy, the control system of the test system is determined to be the electro-hydraulic servo control system, and the overall design of the control scheme of the test system is made.Secondly, according to the motion function of the test system, the hardware circuit connection design is completed around the control core PIC controller of the electro-hydraulic control system, including the control circuit of the long stroke asymmetric cylinder.The control circuit and serial communication circuit of short stroke symmetrical cylinder are designed, and the program of PIC microcontroller is designed and developed on the basis of hardware, including the design of communication protocol, the overall design of control program and the software design of each main function module.Finally, on the basis of the construction of the test system platform, the on-line debugging of the motion lifting test device system is carried out, and the manual mode debugging and the automatic mode debugging of the test system are completed in turn.Verify the integrity and reliability of the electro-hydraulic control system of the test device.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：V216.8

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