摘要
根据CCAR-25[1]的合格审定要求,分析了民机空中最小操纵速度的基本原理。由基本的横航向动力学方程出发,推导出飞机机体抗偏航能力公式,分析了影响因素及其物理意义。在此基础上,给出了一种数据处理分析方法,基于精确的发动机推力模型,该方法能够换算得到任意WAT组合条件下的空中最小操纵速度。
In this paper,the basic theory of the Air Minimum Control Speed（Vmca） of civil airplane from the requirement of CCSR-25＇s compliance is analyzed.From lateral and yaw aerodynamic equation,the expression of airplane＇s yawing capability is deduced,the influence factors and actual physical meanings are analyzed.Based on the above analysis,a method of data reduction is proposed.The method could calculate Vmca in any given desired combined WAT conditions,if have acquired an accurate engine performance model.
出处
《工程与试验》
2011年第3期29-32,61,共5页
Engineering and Test
