摘要
讨论了横向敏捷性指标——飞机带过载情况下滚转并捕获 90°滚转角的时间的计算评估问题。由于该指标值对操纵输入规律的变化较敏感 ,使不同飞机间敏捷性评估缺乏可比性。为了消除驾驶技术对其的影响 ,提出了最优横向敏捷性指标的概念 ,并建立了用遗传算法计算最优横向敏捷性的模型 ,通过选取适当的适应度函数及遗传操作算子 ,对最优横向敏捷性进行了计算。仿真结果表明 ,该优化方法在横向敏捷性计算评估中 。
This paper studies evaluation of the roll agility metric that is the time to roll and capture a 90° bank angle change with certain normal load factor ( t RC90 ). Because of the sensitivity of t RC90 to the control input used in simulation, the biasness of evaluation will rise in comparison between aircraft. In order to reduce the effects of pilot technique on the metric t RC90 ,the paper proposes to specify the roll agility with the optimal value of t RC90 , and establishes the optimal model for calculating the value of t RC90 by the genetic algorithm. With selecting the proper fitness function and genetic operators, it calculates the optimal t RC90 . The results show that the optimal algorithm exhibits the engineering flexibility and good robustness in the evaluation of the roll agility.
出处
《飞行力学》
CSCD
2002年第1期10-13,共4页
Flight Dynamics
