Forward-look wind-shear detection for microburst recovery
Forward-look wind-shear detection for microburst recovery
复制标题
用于微爆恢复的前瞻风切变检测
DOI：
10.2514/3.46125
复制
发表时间：
1992
期刊：
影响因子：
--
通讯作者：
D. Hinton
中科院分区：
文献类型：
--
作者：
D. Hinton
美国国家航空航天局、联邦航空管理局和业界正在努力减少对流微爆风切变现象对飞机的威胁。本文描述了量化前视传感的好处，并开发和测试了一套候选策略，用于从着陆过程中无意遭遇的微爆中恢复。在使用全动态飞机模型进行飞行员模拟评估之前，在批量模拟中进行了恢复策略的初步开发。这一努力的结果表明，对微冲击采收率影响最大的因素是开始采收率的时间。与更改恢复策略相比，将警报时间提高5秒通常可以提供更大的恢复性能提升。在微爆进入前10秒发出的前瞻性警报允许在可忽略的高度损失下进行回收。F =风切变危险指数g =重力加速度//ref =恢复策略参考高度V =飞机空速Wh =垂直风分量，上升气流正Wx =水平风分量，沿飞机地面轨迹
An effort is in progress by NASA, the Federal Aviation Administration, and the industry to reduce the threat of convective microburst wind-shear phenomena to aircraft. This paper describes an effort to quantify the benefits of forward-look sensing and to develop and test a candidate set of strategies for recovery from inadvertent microburst encounters during the landing approach. Initial development of recovery strategies was performed in batch simulation prior to piloted simulation evaluation using a full dynamic airplane model. The results of this effort indicate that the factor that most strongly effects a microburst recovery is the time at which the recovery is initiated. Improving the alert time by 5 s generally provided a greater recovery performance increase than could be achieved by changing the recovery strategy. Forward-look alerts given 10 s prior to microburst entry permitted recoveries to be made with negligible altitude loss. Nomenclature F = wind-shear hazard index g = gravitational acceleration //ref = reference altitude for recovery strategies V = airplane airspeed Wh = vertical wind component, updraft positive Wx = horizontal wind component, along the airplane ground track