风廓线雷达高空风的火箭最大气动载荷适用性分析  

Analysis of the applicability of the maximum aerodynamic load of rocket with upper wind from wind profile radar

作　　者：程胡华[1] 康钊菁 商临峰[1] 杨春生 罗东升 韩琛锐 CHENG Huhua;KANG Zhaojing;SHANG Linfeng;YANG Chunsheng;LUO Dongsheng;HAN Chenrui(Taiyuan Satellite Launch Center,Taiyuan 030031,China)

机构地区：[1]太原卫星发射中心,太原030031

出　　处：《航天控制》2025年第1期73-80,共8页Aerospace Control

摘　　要：以探空气球高空风资料为基准,对风廓线雷达、数值天气预报模式预报第1~4天的高空风及对应最大气动载荷精度进行对比分析,结果表明:高空风精度由低到高依次为风廓线雷达、预报第4~1天,风廓线雷达在高度7.6 km及以上的高空风精度明显偏低,绝对差超过5 m/s;最大气动载荷精度由低到高依次为风廓线雷达、预报第4~1天,风廓线雷达、预报第1~4天的最大气动载荷平均绝对差分别为326.72、126.53、162.26、183.15和212.59,单位为Pa∙rad,相关系数值分别为0.76、0.98、0.96、0.95和0.92。因此,风廓线雷达高空风产生的最大气动载荷精度较低,不能用于火箭飞行的安全保障,需进一步改造提高其精度。Based on the upper wind benchmark of the sounding balloon,the upper winds and the preci⁃sion of corresponding maximum aerodynamic load from the wind profile radar and numerical weather pre⁃diction model forecasts from 1st day to 4th day are compared and analyzed.The results show that:the precision of the upper wind from low to high is presented by the wind profile radar and the forecast of the 4th day to the forecast of the 1st day.The precision of the wind profile radar at the altitude of 7.6 km and above is obviously low,and absolute difference is more than 5 m/s;The precision of maximum aerody⁃namic load from low to high is wind profile radar and the forecast of the 4th day to the forecast of the 1st day.The average absolute differences of the maximum aerodynamic load from wind profile radar and the the forecast of the 1st day to the forecast of the 4th day is respectively showed by 326.72 Pa∙rad,126.53 Pa∙rad,162.26 Pa∙rad,183.15 Pa∙rad and 212.59 Pa∙rad,and the correlation coefficient values are separately recorded by 0. 76, 0. 98, 0. 96, 0. 95 and 0. 92. Therefore, the precision of the maximumaerodynamic load from the wind profile radar is low, which cannot be used for the safety guarantee ofrocket flight and needs to be further improved.

关 键 词：火箭飞行安全 最大气动载荷 风廓线雷达 数值天气预报模式 适用性分析 

分 类 号：V411.8[航空宇航科学与技术—航空宇航推进理论与工程]