1、omega1=1;theta7=60;alpha1=0;hd=pi/180;du=180/pi; m=-1;for n1=1:360theta1=(n1-1)*hd;aa=2*l1*l3*sin(theta1);bb=2*l3*(l1*cos(theta1)-l4);cc=l2*l2-l1*l1-l3*l3-l4*l4+2*l1*l4*cos(theta1);theta3(n1)=2*atan(aa+m*sqrt(aa*aa+bb*bb-cc*cc)/(bb-cc);s1=l3*sin(theta3)-l1*sin(theta1);theta2(n1)=atan(s1/(l4+l3*cos(t
2、heta3)-l1*cos(theta1);xe=l1*cos(theta1)+l2*cos(theta2)+l9*cos(theta2-theta7);ye=l1*sin(theta1)+l2*sin(theta2)+l9*sin(theta2-theta7);s2=yg-ye;theta8(n1)=atan(s2/(xg-xe);s3=(xe-xg).*(xe-xg)+(ye-yg).*(ye-yg)+l5*l5-l6*l6;theta9(n1)=acos(s3/(2*l5*sqrt(xe-xg).*(xe-xg)+(ye-yg).*(ye-yg);theta5(n1)=theta8(n1
3、)-theta9(n1)+pi;s4=ye+l5*sin(theta8-theta9)-yg;theta6(n1)=atan(s4/(xe+l5*cos(theta8-theta9)-xg);theta9(n1)=2*pi-(theta7-theta2(n1);omega3(n1)=omega1*l1*sin(theta1-theta2)/l3/sin(theta3-theta2);omega2(n1)=-omega1*l1*sin(theta1-theta3)/l2/sin(theta2-theta3);omega5(n1)=omega2(n1)*(l2*sin(theta2(n1)-the
4、ta6(n1)+l9*sin(theta2(n1)-theta7-theta6(n1)+omega1*l1*sin(theta1-theta6(n1)/l5/sin(theta5(n1)-theta6(n1);omega6(n1)=-omega2(n1)*(l2*sin(theta2(n1)-theta5(n1)+l9*sin(theta2(n1)-theta7-theta5(n1)+omega1*l1*sin(theta1-theta5(n1)/l6/sin(theta5(n1)-theta6(n1);s4=l2*omega2(n1)*omega2(n1)+l1*omega1*omega1*
5、cos(theta1-theta2)-l3*omega3(n1)*omega3(n1)*cos(theta3-theta2);s5=l3*omega3(n1)*omega3(n1)-l1*omega1*omega1*cos(theta1-theta3)-l2*omega2(n1)*omega2(n1)*cos(theta2-theta3);s6=omega1*omega1*l1*cos(theta1-theta6(n1)+omega2(n1)*omega2(n1)*(l2*cos(theta2(n1)-theta6(n1)+l9*cos(theta2(n1)-theta7-theta6(n1)
6、-l5*omega5(n1)*omega5(n1)*cos(theta5(n1)-theta6(n1)-l6*omega6(n1)*omega6(n1);s7=omega1*omega1*l1*cos(theta1-theta5(n1)+omega2(n1)*omega2(n1)*(l2*cos(theta2(n1)-theta5(n1)+l9*cos(theta2(n1)-theta7-theta5(n1)-l5*omega5(n1)*omega5(n1)-l6*omega6(n1)*omega6(n1)*cos(theta6(n1)-theta5(n1);alpha3(n1)=s4/(l3
7、*sin(theta3-theta2);alpha2(n1)=s5/(l2*sin(theta2-theta3);alpha5(n1)=(s6+alpha2(n1)*(l2*sin(theta2(n1)-theta6(n1)+l9*sin(theta2(n1)-theta7-theta6(n1)/l5/sin(theta5(n1)-theta6(n1);alpha6(n1)=-(s7+alpha2(n1)*(l2*sin(theta2(n1)-theta5(n1)+l9*sin(theta2(n1)-theta7-theta5(n1)/l6/sin(theta5(n1)-theta6(n1);
8、vex=-l1*omega1.*sin(theta1)-l2*omega2.*sin(theta2)-l9*omega2.*sin(theta2-theta7);vey=l1*omega1.*cos(theta1)+l2*omega2.*cos(theta2)+l9*omega2.*cos(theta2-theta7);ve=sqrt(vex.*vex+vey.*vey);aex=-l1*alpha1.*sin(theta1)-l1*omega1.*omega1.*cos(theta1)-l2*omega2.*omega2.*cos(theta2)-l2*alpha2.*sin(theta2)
9、-l9*alpha2.*sin(theta2-theta7)-l9*omega2.*omega2.*cos(theta2-theta7);aey=l1*alpha1.*cos(theta1)-l1*omega1.*omega1.*sin(theta1)+l2*alpha2.*cos(theta2)-l2*omega2.*omega2.*sin(theta2)+l9*alpha2.*cos(theta2-theta7)-l9*omega2.*omega2.*sin(theta2-theta7);ae=sqrt(aex.*aex+aey.*aey);end figure(1);n1=1:360;s
10、ubplot(2,3,1);plot(n1,real(theta2*du),n1,real(theta3*du),n1,real(theta5*du),n1,real(theta6*du),k);title(角位移线图xlabel(曲柄转角 phi_1/circ)ylabel(角位移/circgrid on;hold on;text(100,100,phi_3text(100,40,phi_2text(100,175,phi_5text(100,0,phi_6subplot(2,3,2);plot(n1,real(omega2),n1,real(omega3),角速度23线图角速度 /radc
11、dots-1text(100,0.1,omega_2text(100,0.35,omega_3subplot(2,3,3);plot(n1,real(omega5),n1,real(omega6),角速度56线图曲柄转角phi_1/circ角速度/radcdots-1text(200,14,omega_5text(200,25,omega_6subplot(2,3,4);plot(n1,real(alpha2),n1,real(alpha3),角加速度23线图角加速度/radcdots-2text(200,0,alpha_2text(200,-0.2,alpha_3subplot(2,3,5)
12、;plot(n1,real(alpha5),n1,real(alpha6),角加速度56线图text(200,-200,alpha_5text(200,-450,alpha_6subplot(2,3,6);plot(n1,real(ve),n1,real(ae),e点的速度和加速度线图 ) 速度/m*s-1text(80,25,vetext(65,45,aefigure(2)m=moviein(20);j=0;5: j=j+1; clf; x(1)=0; y(1)=0; x(2)=l1*cos(n1-1)*hd); y(2)=l1*sin(n1-1)*hd); x(3)=l4+l3*cos(t
13、heta3(n1); y(3)=l3*sin(theta3(n1); x(4)=l4; y(4)=0; x(5)=l4+l3*cos(theta3(n1); y(5)=l3*sin(theta3(n1); x(6)=l4+l3*cos(theta3(n1)+l2-cos(theta2(n1)-theta7); y(6)=l3*sin(theta3(n1)+l2*sin(theta2(n1)-theta7); x(7)=xg+l6*cos(theta6(n1); y(7)=yg+l6*sin(theta6(n1); x(8)=xg; y(8)=yg; plot(real(x),real(y); grid on; hold on; plot(x(1),y(1),o plot(x(2),y(2), plot(x(3),y(3), plot(x(4),y(4), plot(x(5),y(5), plot(real(x(6),re
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