国产民用运输类飞机障碍物限重计算模型优化研究  

Study on optimum calculation model optimization for obstacle limited weight of domestic civil transport aircraft

作　　者：刘羽宇[1] 王可[1] 杨军利[1] 钱宇[1] LIU Yuyu;WANG Ke;YANG Junli;QIAN Yu(School of Flight Technology,Civil Aviation Flight University of China,Guanghan 618307,China)

机构地区：[1]中国民用航空飞行学院飞行技术学院,广汉618307

出　　处：《航空工程进展》2023年第2期129-135,共7页Advances in Aeronautical Science and Engineering

基　　金：国家自然科学基金民航联合基金重点项目(U2033213);民航安全能力建设基金(DFS20180406)。

摘　　要：航空公司使用多年的某国产民用运输类飞机性能软件,在障碍物限重计算准确性方面虽能获得较满意的结果,但计算时间较长,计算效率偏低。首先分析该软件所用计算模型(原模型)计算效率较低的原因,比较优化模型(采用最小改平高计算)和原模型(采用最大改平高计算)的计算结果准确性和计算效率;然后计算不同障碍物、不同风速条件下,两种模型计算出的障碍物限重、改平高度和计算时间,并进行比较分析。结果表明:两种模型计算得到的障碍物限重和改平高度基本相同;无障碍物时,不论有风无风,优化模型比原模型可减少计算时间25%;有障碍物时,无风情况下,优化模型可减少计算时间78%以上,有风时,则可减少计算时间75%以上。即采用最小改平高的模型可以兼顾准确性和高效性。The performance software of a domestic civil aircraft used by an airline for many years can obtain satisfactory results in the accuracy of obstacle limited weight calculation,but the calculation time is long.The optimization model is established by comparing the calculation results and efficiency of the two models of the minimum acceleration height method and the maximum acceleration height method.The obstacle limited weight,acceleration height and calculation time of the two models under different obstacles and different wind speeds are calculated and analyzed.The results show that the calculation results of obstacle limited weight and acceleration height of the two models are basically the same;When there is no obstacle,whether there is wind or not,the calculation time can be reduced by 25% using the optimization model with the minimum acceleration height compared with the original model with the maximum acceleration height;When there are obstacles and there is no wind,the calculation time can be reduced by more than 78% by using the optimization model with minimum acceleration height,and when there is wind,the calculation time can be reduced by more than 75%.The model with the minimum acceleration height can take account of both accuracy and efficiency.

关 键 词：民用运输类飞机 障碍物限制起飞重量 计算模型优化 计算效率 

分 类 号：V247[航空宇航科学与技术—飞行器设计] V212.13