辅助动力装置仿真测试平台设计与开发

发布时间：2018-05-11 23:27

本文选题：辅助动力装置 + APU　；参考：《华东理工大学》2015年硕士论文

【摘要】：本文以某航空公司某型辅助动力装置为背景,对其仿真测试平台进行设计与开发。辅助动力装置(简称APU)实质上是一台小型燃气涡轮发动机,能提供增压气源和轴功率,用于启动主发动机,驱动液压泵、发电机为飞机提供备用液压源和电源,向客舱空调系统提供气源。由于APU设备结构复杂、价格昂贵,无法随时用真实设备进行系统运行性能和参数的测试,也不利于系统的开发、性能改善及故障诊断。因此,开发和设计一种能代替真实设备来完成APU功能和运行特性仿真的测试平台显得尤为重要。本文就辅助动力装置的仿真测试平台进行设计与开发。首先介绍了自动测试系统的功能、特点和发展现状；再从辅助动力装置的功能结构及测试平台的控制要求出发,确定了系统的总体方案；然后详细阐述了如何基于MATLAB/SIMULINK来搭建APU系统的仿真模型,并基于PXI测试总线搭建了模块式的系统硬件结构；利用VeriStand软件来完成主控软件的开发,并根据系统测试实验的需要,完成了相应的实验构型配置；利用Lab View软件搭建了测试平台的显示监控界面。测试平台除了能提供虚拟的仿真测试环境,还提供了APU与ECU的仿真接口,以完成与真件或仿真器的连接。通过实际的运行和调试,验证了测试平台的正确性和运行可靠性,同时系统也提供故障的注入功能,为APU的故障模拟和诊断提供了可能。本文设计的仿真测试平台符合航空产业相关标准规范,产品已投入到实际应用,目前处于试运行阶段,取得了预期效果。
[Abstract]:In this paper, a certain kind of auxiliary power plant of an airline is used as the background, and its simulation and test platform is designed and developed. The auxiliary power unit (APU) is essentially a small gas turbine engine capable of providing pressurized gas sources and shaft power for starting the main engine, driving the hydraulic pump, and providing the aircraft with a backup hydraulic source and power supply for the generator. Provide air supply to cabin air conditioning system. Because of the complex structure and high price of APU equipment, it is impossible to test the performance and parameters of the system with real equipment at any time. It is also unfavorable to the development, performance improvement and fault diagnosis of the system. Therefore, it is very important to develop and design a test platform that can replace the real equipment to complete the simulation of APU function and running characteristics. This paper designs and develops the simulation test platform of auxiliary power device. First, the function, characteristics and development status of the automatic test system are introduced, then the overall scheme of the system is determined from the function structure of the auxiliary power device and the control requirements of the test platform. Then how to build the simulation model of APU system based on MATLAB/SIMULINK, and build the modular system hardware structure based on PXI test bus, use VeriStand software to complete the development of main control software, and according to the need of system test experiment, the paper describes how to build the simulation model of APU system based on VeriStand, and builds the modular system hardware structure based on PXI test bus. The corresponding experimental configuration is completed, and the display and monitoring interface of the test platform is built by using Lab View software. In addition to providing a virtual simulation test environment, the test platform also provides a simulation interface between APU and ECU to complete the connection with real parts or emulators. Through actual operation and debugging, the correctness and reliability of the test platform are verified. At the same time, the system also provides the function of fault injection, which provides the possibility for the fault simulation and diagnosis of APU. The simulation test platform designed in this paper conforms to the aviation industry standards and specifications, and the products have been put into practical application. At present, the platform is in the trial operation stage, and the expected results have been obtained.
【学位授予单位】：华东理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：V216.8;TP391.9

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