疆大学 机械工程学院，新疆 乌鲁木齐 830008]
3、机械原理 宋恒，陈作模，葛文杰[第七版 西北工业大学机械原理及机械零件教研室] 4、机械优化设计 宋靖民，梁迎春[第四版 哈尔滨工业大学]
附录：
（1）、机构在给定区间内的传动角变化曲线图源代码 %机构在给定区间内的传动角变化曲线图源代码 l2=3.4554 ;l3=25446;l4=5.0000;
y1=acos(((1+l2)^2+l4^2-l3^2)/(2*l4*(1+l2)));%机构起始输入角； y2=pi-acos((l3^2+l4^2-(1+l2)^2)/(2*l4*l3));%机构起始输出角； a=acos(((1+l2)^2+l3^2-l4^2)/(2*l3*(1+l2))); for i=1:50;
fai(i)=y1+(pi/2)*(i/50);
rou(i)=sqrt(1+l4^2-2*l4*cos(fai(i)));
if rad2deg(acos((l2^2+l3^2-rou(i)^2)/(2*l2*l3)))<=90 CDJ(i)=acos((l2^2+l3^2-rou(i)^2)/(2*l2*l3)); else
CDJ(i)=pi-acos((l2^2+l3^2-rou(i)^2)/(2*l2*l3)); end
afa(i)=acos((rou(i)^2+l3^2-l2^2)/(2*rou(i)*l3)); xgm(i)=acos((rou(i)^2+l4^2-1)/(2*rou(i)*l4)); taoshiji(i)=pi-afa(i)-xgm(i);
taoqiwang(i)=(y2+(2/(3*pi))*(fai(i)-y1)^2); end
b=rad2deg(max(CDJ));
y=[rad2deg(a),rad2deg(CDJ)]; x=[rad2deg(y1),rad2deg(fai)]; plot(x,y,'-*')
xlabel('曲柄输入角/度','fontsize',12,'fontname','宋体'); ylabel('传动角/度','fontsize',12,'fontname','宋体'); text(26.4707,73.6652,'(26.4707,73.6652)'); text(77.4705,89.6679,'ymax=89.6679'); text(116.4705,65.2943,'ymin=65.2943');
title('曲柄摇杆机构在给定区间内的传动角变化曲线图','fontsize',12,'fontname','宋体'); grid on （2）、实际输出角与期望输出角关系曲线图源代码 %实际输出角与期望输出角关系曲线图源代码 l2=3.4554 ;l3=2.5446;l4=5.0000;
y1=acos(((1+l2)^2+l4^2-l3^2)/(2*l4*(1+l2)));%机构起始输入角； y2=pi-acos((l3^2+l4^2-(1+l2)^2)/(2*l4*l3));%机构起始输出角； for i=1:50;
fai(i)=y1+(pi/2)*(i/50);
rou(i)=sqrt(1+l4^2-2*l4*cos(fai(i)));
if rad2deg(acos((l2^2+l3^2-rou(i)^2)/(2*l2*l3)))<=90 CDJ(i)=acos((l2^2+l3^2-rou(i)^2)/(2*l2*l3)); else
CDJ(i)=pi-acos((l2^2+l3^2-rou(i)^2)/(2*l2*l3)); end
afa(i)=acos((rou(i)^2+l3^2-l2^2)/(2*rou(i)*l3)); xgm(i)=acos((rou(i)^2+l4^2-1)/(2*rou(i)*l4)); taoshiji(i)=pi-afa(i)-xgm(i);
taoqiwang(i)=(y2+(2/(3*pi))*(fai(i)-y1)^2); end
a1=rad2deg(y1)
x1=[a1,rad2deg(fai)];
x2=[rad2deg(fai(17)),rad2deg(fai(17))]; y3=[rad2deg(y2),rad2deg(taoshiji)]; y4=[rad2deg(y2),rad2deg(taoqiwang)];
y5=[rad2deg(taoshiji(17)),rad2deg(taoqiwang(17))]; plot(x1,y3,'-*',x1,y4,'-+',x2,y5) a2=max(y3-y4);
legend('实际输出角','期望输出角',2)
xlabel('曲柄输入角/度','fontsize',12,'fontname','宋体'); ylabel('摇杆输出角/ 度','fontsize',12,'fontname','宋体'); text(26.4707,100.1831,'(26.4707,100.1831)')
title('曲柄摇杆机构的输入角与输出角的关系曲线图','fontsize',12,'fontname','宋体');
text(77.4705,110.9450,'y4=110.9450'); text(77.4705,109.7715,'y3=109.7715'); grid on