基于北斗系统的飞行器安全控制系统设计与故障诊断研究

发布时间：2018-12-26 16:42

【摘要】：飞行器的飞行试验是验证飞行器性能、完善产品设计的必要途径。飞行试验期间,由于产品质量难保证,飞行试验故障率相对较高,易对地面人员设施产生危害,因此需要对产品试验过程实施有效的全程安全控制。近年来,随着GPS、GLONASS等全球导航定位系统的广泛应用,极大地提高了中、低轨卫星的自主定轨能力。但是考虑到政治因素和可靠性因素,我国飞行试验中尤其是对于关系到人员和设施安全的飞行器安全控制系统中不能将其作为主要定位和测量手段。本论文利用北斗卫星系统为用户提供的快速定位、通信和定时服务,针对飞行器的飞行特点与飞行试验对安全控制的总体需求,设计了基于北斗卫星系统的飞行器安全控制系统。随着北斗卫星系统区域卫星系统建设目标的实现,其在军民领域具有广泛的应用前景。在系统设计过程中研究了飞行目标的安全控制技术,确定了飞行试验过程中的安全控制任务。重点对飞行器安全控制的原理、安全控制的方法、目标保护策略的提出等关键问题进行了深入的研究。分析了北斗卫星系统在飞行器试验的安全控制工作的应用领域,提出了一种以天基测控站为核心,兼顾地面、空基测控的通用化天基一体化的飞行器安全控制系统方案。同时,对系统可靠性在分系统层面进行粗略计算,设计实现试验场安全控制系统平台,能够对飞行器及测量设备的监控,完成飞行数据的显示和参试设备故障检索等功能。本文运用故障树分析法对飞行器的试验安全影响因素进行分析。建立故障树,并进行了定性和定量分析,克服了只能针对典型试验航路进行试验安全因素的定量计算的问题,使得试验安全因素的分析计算更加科学合理,更贴近实际。
[Abstract]:The flight test of aircraft is a necessary way to verify the performance of aircraft and perfect the product design. During the flight test, because the product quality is difficult to guarantee, the failure rate of the flight test is relatively high, and it is easy to cause harm to the personnel facilities on the ground, so it is necessary to carry out effective safety control in the whole process of the product test. In recent years, with the wide application of GPS,GLONASS and other global navigation and positioning systems, the autonomous orbit determination capability of medium-low orbit satellites has been greatly improved. However, considering the political factors and reliability factors, it can not be used as the main means of positioning and measurement in flight tests, especially for the aircraft safety control system, which is related to the safety of personnel and facilities. Based on the fast positioning, communication and timing services provided by Beidou Satellite system, this paper aims at the flight characteristics of aircraft and the overall requirements of flight test for safety control. The aircraft safety control system based on Beidou satellite system is designed. With the realization of the regional satellite system of Beidou satellite system, it has a wide application prospect in the field of military and civilian. In the course of system design, the safety control technology of flight target is studied, and the safety control task during flight test is determined. The key problems such as the principle of aircraft safety control, the method of safety control and the strategy of target protection are studied in detail. This paper analyzes the application field of Beidou satellite system in the safety control of aircraft test, and puts forward a universal space-based safety control system with space-based TT & C station as the core and taking into account the ground and space-based TT & C. At the same time, the reliability of the system is roughly calculated at the sub-system level, and the safety control system platform of the test ground is designed and realized. The platform can monitor the aircraft and the measuring equipment, and complete the functions of flight data display and equipment fault retrieval. In this paper, fault tree analysis is used to analyze the influence factors of aircraft test safety. The fault tree is established, and qualitative and quantitative analysis is carried out, which overcomes the problem that the quantitative calculation of test safety factors can only be carried out for typical test routes, which makes the analysis and calculation of test safety factors more scientific and reasonable, and closer to reality.
【学位授予单位】：东北大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：V249.1;TN967.1

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