基于雷达谱宽和紊流模型的风场飞行风险预测  

Prediction of wind flight safety based on radar spectral width and turbulence model

作　　者：韩国玺[1] 张曙光[2] 

机构地区：[1]中国航天空气动力技术研究院第一研究所,北京100074 [2]北京航空航天大学交通科学与工程学院,北京100191

出　　处：《飞行力学》2015年第6期481-485,共5页Flight Dynamics

基　　金：国家自然科学基金资助(60832012)

摘　　要：为了及时规避危险风场,确保飞行安全,需要向驾驶员和指挥员提供更详细的风场信息。使用多普勒气象雷达的谱宽数据,结合紊流场分布模型,可以对所探测风场的紊流强度进行估计;利用紊流强度完成了符合统计规律的风场数字重建;然后根据飞机飞行参数进行风场飞行仿真,引入振动总量评价指标对所得到的风场响应进行安全性和舒适性评价,最后给出了可视化结果。结果显示,相比于传统谱宽数据,该方法能提供更为易用和准确的风场信息。In order to avoid the dangerous wind field and ensure flight safety,it is necessary to provide more detailed wind information to the pilots and traffic controllers. With the use of spectral width data of Doppler weather radar and turbulence distribution model,we can estimate the turbulence intensity of detected wind field. Use the turbulence intensity of wind field to complete the reconstruction of digital wind model compliance for the statistical law. Then the flight simulation can be performed with flight parameters,the safety and comfortableness of aircraft wind response can be assessed by using VTV,and finally a visual display can be provided. The results show that,compared to traditional spectral width data,this method can provide more accessible and accurate wind information.

关 键 词：飞行安全 风场 多普勒雷达 紊流 谱宽 

分 类 号：V212.1[航空宇航科学与技术—航空宇航推进理论与工程] V328.1