PERFORMANCE, STABILITY, DYNAMICS, AND CONTROL2(119)

曝光台 注意防骗 网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者

We note that
     1,
r,g = ~- 8mrb
 mrcg = ~~: 8mrh
(4.255)
(4.256)
Then
        F = m[(2e x (2e X (R, + Ro) + (ao)e +2C2e x  V;j + (dd,   )b X i:cg
+(D~b X (c7)l.b x lcb,)]
(4.257)
      Specialcases.    When the center of gravity of the vehicle coincides with the
 origin of the body-fxed coordinate system, rcg = O, then Eq. (4.257) assumes the
form
                     F = m[CZe x ?2e X (Re + Ro) + (ao)e + 2C2e x V:]         (4.258)
     For the low-altitude flight dynamic problems, IRol << IRel, then
                          F =m[C2e X ?2e x Re + (ao)e + 2?2e X Ve]              (4.259)
    Let us expand the vector products in Eq. (4.259) and derive the equations of
motion in the usual Cartesian form. Let A, denote the latitude of the ongin of the
 OxeYeZe axes system. Then,
                                                S2e = 2e<2c COS;t- - F-CeS2e sin A                               (4.260)
                                                                Re - -ke Re                                             (4.261)
                                                 1V : = le Vor + Je Voy + ke Voz                                (4.262)
                                             - ZXe + JYe + kze
                 -                      (4.263)
                                             (ao)e = IXe + ,lYe + kZe                              (4.264)
Using the vector cross product rule,
                                       a x b x c = b(a . c) - c(b  a)                         (4.265)
We have
                 g2e X ?2e X Re = S2e(?2e . Re) - Re(?2e . S2e)                   (4.266)
                                                                =  (leg2e cos A  - rCe C2e siri } )(SZeRe siri A)
　
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：PERFORMANCE, STABILITY, DYNAMICS, AND CONTROL2(119)