1、 沈阳航空航天大学毕业设计 外文翻译 学 院 自动化学院 专 业 运载器这测试技术 班 级 94070301 学 号 2009040510011 姓 名 李万峰 指导教师 崔建国 负责教师 崔建国 沈阳航空 航天大学 2013 年 6 月 沈阳航空航天大学毕业设计（外文翻译） 1 Aeroengine condition monitoring system design study Design research abstract: the aircraft engine condition monitoring system for a certain type of aircraft en
2、gine as the research object, discussed the engine state monitoring system design and implementation, this paper mainly discusses the status monitoring system of the overall design, system software and hardware development and testing and redundancy design, and in the design of engine state monitorin
3、g system, introduced the embedded PC / 104 modules.In order to make the state monitoring system has a better scalability and adaptability, the system designed can work in three ways: airborne operation mode, data playback mode and ground test run mode, through these way for automatic monitoring of e
4、ngine state parameter, for the state of the engine trend analysis, fault diagnosis, and as to provide scientific basis for maintenance. Key words: the engine condition monitoring；PC / 104；Redundant design. 0. The introduction As the power source of the airplane flight, aircraft engine research is a
5、very complex process, the aircraft engine test as the development of the three pillars (calculation, manufacture and test), one of its importance is self-evident, it turns out, mainly consisted of 沈阳航空航天大学毕业设计（外文翻译） 2 engine test, rather than by calculation and analysis.For the development of an air
6、craft engine group, is flat, how we can decide the how developed horizontal engine.For aircraft engine manufacture, condition monitoring is an important examination method of engine performance, by condition monitoring and testing work is to adjust the engine performance and break-in, check the manu
7、facturing or overhaul quality, finally gives the engine factory performance report purpose, therefore the accurate and reliable test method for state monitoring to ensure the quality of the engine has the vital significance.As we all know, the engine vibration and high noise in the process of work a
8、nd the strong jamming signal, all parameters to the variety of the monitoring system puts forward higher requirements.Especially with the improvement of engine performance, real-time monitoring of the parameters needed for condition monitoring is becoming more and more people continue to explore new
9、 testing technology for many years, to adapt to the increasingly development of engine test technology requirements. 1. The condition monitoring system overall design The condition monitoring system is designed for a certain type of turbofan engine, the engine monitoring system of the input signal is part of a total of 17 analog, 3 road 16 way switch frequency and quantity, including 17 analog, 3 road frequency quantity through the
