【摘要】 空速的准确测量对飞机的导航、操纵与安全性检测具有重要意义。通过对现有的真空速与指示空速的测量、计算方法进行研究,提出一种新空速的概念——标准大气空速。建立了标准大气空速的计算方法;给出了标准大气空速的测量方法;阐述了标准大气空速的意义。Matlab仿真结果表明,标准大气空速测量方法简单,适用范围大,解算精度高。在高度为0~20 km、速度为100~2000 km/h内相对真空速的最大误差为1.16%,可以代替真空速。且计算公式简单,适合工程应用。更多还原

【Abstract】 The accurate measurement of airspeed is important for navigation,manipulation and safety testing of the aircraft.By studying the measurement and calculation method for the existing airspeed and indicated airspeed,a new concept of airspeed namely standard atmospheric airspeed is presented.A calculation method of standard atmosphere airspeed is established,the method of measuring the standard atmosphere airspeed is given,the significance of the standard atmospheric airspeed is explained.Matlab simulation results show that the standard atmospheric airspeed measurement method is simple,and has wide application range and high precision.At the height of 0 km to 20 km and speed range of 100 km/h to 2000 km/h,the maximum error relative true airspeed is 1.16%,it can replace true airspeed.The formula is simple and suitable for engineering applications.更多还原