这个程序报错，各位大神能帮我看下嘛，我是想求thetal1的变化和F的关系

玛克博罗 · 发表于 2022-3-23 10:54

EDA365欢迎您登录！

您需要登录才可以下载或查看，没有帐号？注册

x

clc
clear
syms thetal1 thetal6 thetal4 thetal5 thetal8 s r
thetal1set=[90:1:120];
thetal2=348;
thetal3=12;
thetal8=12;
thetal6=zeros(size(thetal1set));
thetal4=zeros(size(thetal1set));
thetal5=zeros(size(thetal1set));
thetal8=zeros(size(thetal1set));
s=zeros(size(thetal1set));
r=zeros(size(thetal1set));
a=0.55;
b=0.89;
l1=0.19;
l2=0.38;
l4=1.007;
l5=0.15;
l7=0.45;
l8=0.22;
l9=0.18;
f2=2034/4*cos(12*2*pi/360)*0.4*2;
for i=1:1:numel(thetal1set)
thetal1=thetal1set(i);
eq1=l4.*cos(thetal6*2*pi/360)+l1.*cos(thetal1*2*pi/360)==l5.*cos(thetal4*2*pi/360)+s.*cos(thetal3*2*pi/360);
eq2=l4.*sin(thetal6*2*pi/360)+l1.*sin(thetal1*2*pi/360)==l5.*sin(thetal4*2*pi/360)+s.*sin(thetal3*2*pi/360)-l8;
eq3=l7.*cos(thetal4*2*pi/360)+l9.*cos(thetal5*2*pi/360)+s.*cos(thetal3*2*pi/360)==b;
eq4=l7.*sin(thetal4*2*pi/360)+l9.*sin(thetal5*2*pi/360)+s.*sin(thetal3*2*pi/360)==l8+a;
eq5=l4.*cos(thetal6*2*pi/360)+l5.*cos(thetal4*2*pi/360+pi)+l1.*cos(thetal1*2*pi/360)==r.*cos(thetal8*2*pi/360);
eq6=l4.*sin(thetal6*2*pi/360)+l5.*sin(thetal4*2*pi/360+pi)+l1.*sin(thetal1*2*pi/360)==r.*sin(thetal8*2*pi/360);
sol=vpasolve([eq1,eq2,eq3,eq4,eq5,eq6],[thetal6,thetal4,thetal5,thetal8,s,r])
thetal6(i)=double(sol.thetal6);
thetal4(i)=double(sol.thetal4);
thetal5(i)=double(sol.thetal5);
thetal8(i)=double(sol.thetal8);
s(i)=double(sol.s);
r(i)=double(sol.r);
t=sqrt(l1^2+r^2-2*l1*r*cos(thetal1*2*pi/360+thetal8*2*pi/360));
thetal7=acos((l4^2+t^2-l5^2)/(2*l4*t))+acos((l1^2+t^2-r^2)/(2*l1*t));
F1=f2*l7*sin(thetal4*2*pi/360-thetal3*2*pi/360)/((l5*sin(pi-acos((l4^2+l5^2-t^2)/(2*l4*l5)))));
F=F1*l1*sin(thetal7)/(l2*sin(pi-thetal1*2*pi/360));
end
plot(thetal1,F)
xlabel('角度/。');
ylabel('缓解力/N');
hold on
grid on

modengxian111 · 发表于 2022-3-23 18:23

问题解决了吗

帐号		自动登录	找回密码
密码			注册

这个程序报错，各位大神能帮我看下嘛，我是想求thetal1的变化和F的关系

EDA365欢迎您登录！

浏览过的版块

推荐内容 /1