System design of operation monitoring and health management for large passenger aircraft
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摘要: 总结了大型客机实时运行监控与健康管理的研究现状, 介绍了C919大型客机的健康管理系统总体架构, 将其划分为实时监控、健康状况趋势分析和预测以及故障诊断与维修决策3个功能模块。分析了实现该系统的地面实时监控技术、趋势分析及预测方法、剩余寿命预测方法、故障诊断算法、维修决策方法以及系统验证仿真技术等6个关键技术和方法, 并对本领域的研究和应用进行了展望。研究结果表明: 通过对飞机进行实时运行监控, 能够降低排故时间, 提高航班正点率, 易于飞机的调配, 提高飞机的利用率; 通过对飞机进行健康管理, 使技术人员能更有效地制定维修任务, 控制维修间隔, 实现预防性维护和视情维修, 从而大大降低维修成本, 提高飞机的可靠性及经济性, 同时也能为飞机的设计提供改善依据。Abstract: The research statuses of real-time operation monitoring and health management for large passenger aircraft were reviewed, the general frame of health management system for C919 aircraft was presented, and it was divided into three modules such as real-time monitoring, trend analysis and prediction of health condition, fault diagnosis and maintenance strategies.Six key technologies and methods of achieving the system were analyzed including real-time monitoring technology on ground, trend analysis and prediction method, remaining life prediction method, fault diagnosis algorithm, maintenance decision method, system validation and simulation technologies, and related researches and applications in this field were prospected.Analysis result shows that real-time operation monitoring for aircraft can reduce troubleshooting time, improve on-time performance and availability, and schedule flight easily.Health management for aircraft can help engineers effectively make maintenance tasks and control maintenance interval, implement preventive maintenance and condition-based maintenance, lower maintenance cost greatly, enhance reliability and economy, and provide improvement references for aircraft design.
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图 1 实时监控与健康管理功能架构
Figure 1. Functional scheme of real-time monitoring and health management
图 2 实时监控与健康管理信息流
Figure 2. Information flow of real-time monitoring and health management
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