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标题:
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
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作者:
玛克博罗
时间:
2022-3-23 10:54
标题:
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
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clc
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clear
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syms thetal1 thetal6 thetal4 thetal5 thetal8 s r
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thetal1set=[90:1:120];
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thetal2=348;
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thetal3=12;
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thetal8=12;
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thetal6=zeros(size(thetal1set));
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thetal4=zeros(size(thetal1set));
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thetal5=zeros(size(thetal1set));
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thetal8=zeros(size(thetal1set));
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s=zeros(size(thetal1set));
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r=zeros(size(thetal1set));
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a=0.55;
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b=0.89;
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l1=0.19;
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l2=0.38;
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l4=1.007;
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l5=0.15;
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l7=0.45;
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l8=0.22;
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l9=0.18;
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f2=2034/4*cos(12*2*pi/360)*0.4*2;
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for i=1:1:numel(thetal1set)
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thetal1=thetal1set(i);
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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);
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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;
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eq3=l7.*cos(thetal4*2*pi/360)+l9.*cos(thetal5*2*pi/360)+s.*cos(thetal3*2*pi/360)==b;
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eq4=l7.*sin(thetal4*2*pi/360)+l9.*sin(thetal5*2*pi/360)+s.*sin(thetal3*2*pi/360)==l8+a;
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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);
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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);
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sol=vpasolve([eq1,eq2,eq3,eq4,eq5,eq6],[thetal6,thetal4,thetal5,thetal8,s,r])
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thetal6(i)=double(sol.thetal6);
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thetal4(i)=double(sol.thetal4);
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thetal5(i)=double(sol.thetal5);
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thetal8(i)=double(sol.thetal8);
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s(i)=double(sol.s);
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r(i)=double(sol.r);
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t=sqrt(l1^2+r^2-2*l1*r*cos(thetal1*2*pi/360+thetal8*2*pi/360));
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thetal7=acos((l4^2+t^2-l5^2)/(2*l4*t))+acos((l1^2+t^2-r^2)/(2*l1*t));
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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)))));
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F=F1*l1*sin(thetal7)/(l2*sin(pi-thetal1*2*pi/360));
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end
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plot(thetal1,F)
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xlabel('角度/。');
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ylabel('缓解力/N');
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hold on
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grid on
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作者:
modengxian111
时间:
2022-3-23 18:23
问题解决了吗
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