飞机飞行安全运行边界计算方法研究
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- 英文论文题名：Research on the Calculation of Safe Flight Envelope under Icing Conditions
- 论文作者：裴彬彬 ; 徐浩军
- 英文论文作者：Pei Binbin ; Xu Haojun ; Aeronautics and Astronautics college ; Air Force Engineering University
- 年：2016
- 作者机构：空军工程大学航空航天工程学院;
- 论文关键词：飞机结冰 ; 情景感知 ; 计算飞行动力学 ; 并行飞行仿真 ; 安全窗
- 英文论文关键词：aircraft icing ; situational awareness ; computational flight dynamics ; asymmetric icing ; parallel flight simulation ; safety window
- 会议召开时间：2016-11-25
- 会议录名称：2016年航空科学与技术全国博士生学术论坛摘要集
- 语种：中文
- 分类号：V328
- 学会代码：XBHH
- 会议名称：2016年航空科学与技术全国博士生学术论坛
- 会议地点：中国陕西西安
- 主办单位：西北工业大学研究生院、中国高校航空学院院长联席会
- 学会名称：西北工业大学航空学院
- 页数：2
- 文件大小：571k
- 原文格式：D
- 会议级别：全国
摘要
目前针对结冰情形下增强驾驶员情景感知的研究比较有限,现有的手段一般为对部分飞行安全关键参数是否超出其极限值来对风险事件是否发生进行预测。建立了驾驶员操纵-飞机本体-积冰影响的动力学模型,通过对单个飞行情形预测时间段内飞行参数风险度的叠加得到该情形下的飞行安全谱,并在此基础上得到该情形下的风险值。基于建立的并行飞行仿真平台,获取飞机在整个运行范围内的风险拓扑图,即安全窗。分析了飞机在对称结冰情形下飞行安全窗的变化,并对结冰的致灾机理进行了分析。仿真结果表明结冰导致安全飞行范围的缩减。安全谱的提出可以为事故的演化分析提供一种全面直观的分析方法,安全窗的构建可为飞机遭遇各种不利情形下驾驶员操纵提供指示,也可为飞机设计人员优化飞机性能提供一定的参考。
Researches on the enhancement of situational awareness for pilot in icing conditions are relatively rare. Current method normally predict the occurrence of incident by estimate whether the safety related parameters exceed their limitations. The complex dynamics of the pilot-vehicle-icing effect model is established. Safety spectrum of a single flight condition is obtained by compare the risk degree of the flight data through the predict time interval, further to get the colored risk value for the flight condition. Safety window for flight safety in the whole area of the space can be calculated using parallel flight simulation platform. The safety windows of symmetric icing condition are researched and the disaster-causing mechanism is analyzed. Simulation results show that ice will lead to the shrink of the safety flight scope. The proposed method can provide theoretical support for situational awareness enhancement in different adverse events, and engineering tool for optimizing the aircraft performance for aircraft designer.
Researches on the enhancement of situational awareness for pilot in icing conditions are relatively rare. Current method normally predict the occurrence of incident by estimate whether the safety related parameters exceed their limitations. The complex dynamics of the pilot-vehicle-icing effect model is established. Safety spectrum of a single flight condition is obtained by compare the risk degree of the flight data through the predict time interval, further to get the colored risk value for the flight condition. Safety window for flight safety in the whole area of the space can be calculated using parallel flight simulation platform. The safety windows of symmetric icing condition are researched and the disaster-causing mechanism is analyzed. Simulation results show that ice will lead to the shrink of the safety flight scope. The proposed method can provide theoretical support for situational awareness enhancement in different adverse events, and engineering tool for optimizing the aircraft performance for aircraft designer.
引文