TA的每日心情 | 衰 29-1-2016 22:46 |
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签到天数: 1 天 [LV.1]初来乍到
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我想画一个有四条线的图,应该很简单的,不知道程序哪里错了
m1=273;m2=183;m3=132;m4=118;mdz=328;mz=50;L1=4708;L2=4613;L3=4700;L4=4835;C=1300;g=9.8;G2=4000*g;b=2100;a=1500;e0=100;e2=200;
L=10000;alpha=pi/9;G0=(m1+m2+m3+m4+mz+mdz)*g;
psi=0:0.01:2*pi;
if L4<=L&&L<=L1+L4
M=(m1*L2/2+m2*(L-L4+L2/2)+m3*(L-L4+L3/2)+m4*(L-L4/2)+mz*L)*g*cos(alpha)-(m1+m2+m3+m4+mz+mdz/2)*g*C;
Fa=1/4*(G2*(1-e2/b)+G0*(1-e0/b)-M*(cos(psi)/b-sin(psi)/a));
Fb=1/4*(G2*(1+e2/b)+G0*(1+e0/b)+M*(cos(psi)/b+sin(psi)/a));
Fc=1/4*(G2*(1+e2/b)+G0*(1-e0/b)+M*(cos(psi)/b-sin(psi)/a));
Fd=1/4*(G2*(1-e2/b)+G0*(1-e0/b)-M*(cos(psi)/b+sin(psi)/a));
end
if L1+L4<=L&&L<=L1+L2+L4
M=(m1*L2/2+m2*(L+L2/2)+m3*(L-L4+L3/2)+m4*(L-L4/2)+mz*L)*g*cos(alpha)-(m1+m2+m3+m4+mz+mdz/2)*g*C;
Fa=1/4*(G2*(1-e2/b)+G0*(1-e0/b)-M*(cos(psi)/b-sin(psi)/a));
Fb=1/4*(G2*(1+e2/b)+G0*(1+e0/b)+M*(cos(psi)/b+sin(psi)/a));
Fc=1/4*(G2*(1+e2/b)+G0*(1-e0/b)+M*(cos(psi)/b-sin(psi)/a));
Fd=1/4*(G2*(1-e2/b)+G0*(1-e0/b)-M*(cos(psi)/b+sin(psi)/a));
end
if L1+L2+L4<=L&&L<=L1+L2+L3+L4
M=(m1*L2/2+m2*(L+L2/2)+m3*(L+L2+L3/2)+m4*(L-L4/2)+mz*L)*g*cos(alpha)-(m1+m2+m3+m4+mz+mdz/2)*g*C;
Fa=1/4*(G2*(1-e2/b)+G0*(1-e0/b)-M*(cos(psi)/b-sin(psi)/a));
Fb=1/4*(G2*(1+e2/b)+G0*(1+e0/b)+M*(cos(psi)/b+sin(psi)/a));
Fc=1/4*(G2*(1+e2/b)+G0*(1-e0/b)+M*(cos(psi)/b-sin(psi)/a));
Fd=1/4*(G2*(1-e2/b)+G0*(1-e0/b)-M*(cos(psi)/b+sin(psi)/a));
end
plot(psi,Fa,'- R',psi.Fb,'- G',psi,Fc,'- b',psi,Fd,'- y');
??? Attempt to reference field of non-structure array.
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