ploteng.m

航天工程工具箱

function ploteng(eng)
%PLOTENG  Plot rocket motor thrust curve.
%   PLOTENG(ENG) plots the thrust curve and displays
%   its motorclass and total impulse.
%
%   See also LOADENG, SAVEENG, RCKSIM.

% Copyright (c) 2003-06-10, B. Rasmus Anthin.

t=[0;eng.thrust(:,1)];
F=[0;eng.thrust(:,2)];
figure
plot(t,F,'.-')
xlabel('t [s]')
ylabel('F(t) [N]')
title(eng.name)
grid
axis tight

I=trapz(t,F);
mc=motorclass(I);
Ii=motorclass(mc);
fprintf('\n   %s : %s < %.2f <= %s  [Ns]\n\n',mc,num2str(Ii(1)),I,num2str(Ii(2)));