基于雷达谱宽和紊流模型的风场飞行风险预测
发布时间:2018-10-11 08:56
【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。
[Abstract]:In order to avoid dangerous wind field in time and ensure flight safety, more detailed wind field information should be provided to pilot and commander. Using the spectral width data of Doppler weather radar and the turbulent field distribution model, the turbulence intensity of the detected wind field can be estimated, and the numerical reconstruction of the wind field according to the statistical law is accomplished by using the turbulence intensity. Then the wind field flight simulation is carried out according to the flight parameters of the aircraft, and the safety and comfort of the resulting wind field response are evaluated by introducing the total vibration evaluation index. Finally, the visualization results are given. The results show that this method can provide more convenient and accurate wind field information than the traditional spectral width data.
【作者单位】: 中国航天空气动力技术研究院第一研究所;北京航空航天大学交通科学与工程学院;
【基金】:国家自然科学基金资助(60832012)
【分类号】:V328;V321.225
本文编号:2263595
[Abstract]:In order to avoid dangerous wind field in time and ensure flight safety, more detailed wind field information should be provided to pilot and commander. Using the spectral width data of Doppler weather radar and the turbulent field distribution model, the turbulence intensity of the detected wind field can be estimated, and the numerical reconstruction of the wind field according to the statistical law is accomplished by using the turbulence intensity. Then the wind field flight simulation is carried out according to the flight parameters of the aircraft, and the safety and comfort of the resulting wind field response are evaluated by introducing the total vibration evaluation index. Finally, the visualization results are given. The results show that this method can provide more convenient and accurate wind field information than the traditional spectral width data.
【作者单位】: 中国航天空气动力技术研究院第一研究所;北京航空航天大学交通科学与工程学院;
【基金】:国家自然科学基金资助(60832012)
【分类号】:V328;V321.225
【相似文献】
相关期刊论文 前7条
1 文凡;高志一;;风浪周期分布与谱宽度的关系[J];海洋湖沼通报;2006年03期
2 卢霭,任百祥,徐彩云;PFT-AC-80NMR谱仪几个重要参数设置的考虑[J];松辽学刊(自然科学版);1991年03期
3 李元栋;王红岩;杨子宁;华卫红;于金标;;碱蒸气激光半导体泵浦源谱宽压窄[J];强激光与粒子束;2011年09期
4 杨永增,张杰,冷秀华;海浪外观波数谱与谱宽度最优确定[J];黄渤海海洋;1999年03期
5 张彩云;董德保;翁宁泉;;风廓线雷达的谱宽分析及湍流耗散率的变化特征初步研究[J];大气与环境光学学报;2009年06期
6 吴克俭,孙孚;海浪波面的信息熵与海浪的谱宽度参量[J];海洋与湖沼;1996年03期
7 ;[J];;年期
相关会议论文 前1条
1 杨万均;施荣明;;随机振动疲劳寿命预测方法研究[A];第十届全国振动理论及应用学术会议论文集(2011)上册[C];2011年
相关硕士学位论文 前2条
1 苗子书;新一代天气雷达不同类型降水回波的谱宽分析[D];兰州大学;2006年
2 李元栋;碱蒸汽激光半导体泵浦源谱宽压窄的研究[D];国防科学技术大学;2010年
,本文编号:2263595
本文链接:https://www.wllwen.com/kejilunwen/anquangongcheng/2263595.html