runtakeoff.m

大气层内航天器飞行动力学matlab仿真模型

% Copyright Ashish Tewari (c) 2006
global dtr; dtr = pi/180;
global mu; mu = 3.986004e14; 
global omega; omega=2*pi/(23*3600+56*60+4.0905); 
global S; S =  223.0815;  
global c; c=5.42; 
global rm; rm = 6378140 ; 
global CD0; CD0=0.02;
global K; K=0.055;
global b; b=41.2; 
global CLmax; CLmax=1.6;
global CLG; CLG=0.1; 
global fT0; fT0=211128.17; 
global tsfc0; tsfc0=0.4; 
global mur; mur=0.03; 
long = 0*dtr;       
lat = 51.45*dtr;    
rad=rm+3;          
vel=0.001;         
fpa=0;             
chi=270*dtr;       
m=84890.909;       
init = [long; lat; rad; vel; fpa; chi; m]; 
[t, o] = ode45('takeoff',[0, 60], init);
fclose('all');