3.1 航天器的姿态运动学 3.2 航天器的姿态动力学 3.3 航天器的一般运动方程 3.4 姿态干扰力矩

6-6航天器轨道动力学与控制 1.航天器分类 科学卫星 人造卫星 应用卫星 技术试验卫星 无人航天器空间平台 月球探测器 空间探测器 航天器 行星探测器 空间站 载人航天器载人飞船∫卫星式载人飞船 航天飞机登月载人飞船 轨道间飞行器

Lecture #4 16.61 Aerospace Dynamics Extension to multiple intermediate frames(two) Copyright 2002 by Jonathan How

16.61 Aerospace Dynamics Spring 2003 Generalized forces revisited Derived Lagrange s equation from d'Alembert's equation ∑m(8x+16y+22)=∑(Fx+F+F。=) Define virtual displacements sx Substitute in and noting the independence of the 8q,, for each

P CDN STANT Wow TAKE THE MOMENT OF MOMENTUM (ANGULAR MOMENTUM) MUST EXPLICITLY DEFINE A POWT ABOUT WHICH WE TAKE THE MOMENT

NEWTONs L丹WS ① BoDY CoNTINUES玉 N TTS STATE OF MOT(0N DR REST UNLESS FORCED DI RECTIoNs IMPoRTA

UPTO NoW HAVE CONJSI DERED PROBLEMS RELEVANT To THE RIGID BO0Y OYNAMICS THAT ARE IMPORTANT To AEROSPACE VEHICLES USED A BODy FRAME THAT ROTATES WITH THE VEHICLE ANOTHER TMPORTANT CLASS oF PRoBLEMS FoR Bo DIES SUCH AS GyRoscofes ROToR WITH HIGH SPIN RATE ESSENTIALY MASSLESS FRAME

Aircraft Lateral Dynamics Using a procedure similar to the longitudinal case, we can develop the equa tions of motion for the lateral dynamics

Longitudinal equations (1-15) can be rewritten as: mu Xuu+ Xww-mg cos 0+ m(w-qUo) =Zuu+ Zww+ Zq-mg sin 000+Z Iyyg =Muu+ Mww+ Mw++ There is no roll/yaw motion, so q 0

ecturt (SpaceCraf AHiud Dynamnics Gal:《GecuwAskwJwy《九 physicald woumics a Hi tude wotiar of spncecraft Ttroduce/ affitude confrol Spaceca+: Pos:tion Linear Vilocity Orb: Motiou Fray! Fuafas motion goverx