机械原理课设程序

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1、机械原理课程设计程序和图像一、曲柄滑块机构的MATLAB程序及图像1、曲柄滑块的位移程序及曲线clccleare«52;Ll=25.5:L2=104.5；wl=7.切i・/5;x=0:0.01:360;LOsqrt((L2-L1).*2-e.*2):aO=pi-atan(e.L0);al=x./180.*pi+a0;sina2=(-L1.*sin(al)-e)./L2;a2=atan(sina2./(sqrt(l-sina2.2)));w2«-Ll.*wl.*cos(al)./(L2.*cos(a2));b2=(Ll.*

2、wl.*2.*sin(al)+L2.*w2.，2・*sina2)./(L2.*cos(a2));s=Ll.*cos(al)+L2.*cos(a2)-L0;plot(x,s,*r・•)；grid;holdon;xlabelC®/°')ylabeK*s/mm*)titleC位移曲线')2、曲柄滑块的速度程序及曲线clccleares52;Ll=25.5;L2=104.5:wl=7.*pi./5;xs0:0.01:360;L0=sqrt((L2-L1).‘2);aO=pi-atan(e./L0);alsx./180.*pi+a

3、0;sina2"(-L1.♦sin(al)-e)./L2:a2=atan(sina2./(sqrt(l-sina2.2)));w2=-Ll.*vl.*cos(al)./(L2.*cos(a2))；b2=(LI.*wl."2.*sin(al)+L2.*w2.'2.*sina2)./(L2.*cos(a2));s«Ll.♦cos(al)+L2.*cos(a2)-L0;v=-Ll.*wl.*sin(al)-L2.*w2・*sina2;plot(x,v,r.);grid;holdon;xlabelCV'')ylabel('v/(

4、mm’s)')

5、titlef速度曲线')150(S/UJUOM速度曲线501001200屮/°2500045033、曲柄滑块的加速度程序及曲线clcclear—52;LL-25.5:L2-104.5;*pi./5;x«0:0.01:360;L0=sqrt((L2-L1)."2-e.*2);aD=pi-atan(e./L0);al*x./180.*pi*a0；sina2=(-L1.*sin(al)-e)./L2;a2«atan(sina2.z(sqrt(l-sina2.2)));w2«-Ll.*wl.*cos(al)./(

6、L2.*cos(a2)):b2=(Ll.*wl.*2.*sin(al)+L2.*w2.*2.*sina2)./(L2.*cos(a2));s»Ll.拿cos(al)+L2.*cos(a2)-L0;v»-Ll.和1.*sin(al)-L2.*w2.*sina2;ac=-Ll.2.*cos(al)-L2.*b2.*sina2-L2.*w2.*2.*cos(a2);plot(x,ac,rr・•)；grid;holdon:xlabel(*$/°')ylabel('a/(nur.s*2))titleC口速哎曲线J800....05

7、0100150200250300350400屮/°二、滚子从动件盘形凸轮机构的MATLAB程序及图像1、凸轮机构的压力角验证程序及图像clccleare=26;h=25;a0=2・3.*pi;r0=80;x=0:0.01:120;a=(x./360).*2.*pi;s=h.*((a./aO)-((l./(2.*pi)).*sin(2.*pi.*a.aO)));s2・(h・aO).*(l-cos(2.*pi.*a.aO));b=atan((s2+e)./(s+sqrt(rO.°2)))；c=b./pi.*180;plot(

8、x,c,j.');grid;xlabelC5')ylabelCar*)

9、titleC压力角曲线')2、凸轮机构的轮廓线程序及图像clccleare-26:h-25;r0s80:a0=2.Z3.*pi;as=l./6.*pi;a01-2./3.*pi;rr-10;■理论霁线&实际霁线a=0:pi/1000:2./3.*pi;s-h.*((a-/aO)-((l./(2.*pi)).*sin(2.*pi.*a./aO))):S-sqrt(rO.*2-e.2)+s;R=sqrt(e.-2*S.*2);polar(a,R,'r・’

10、)holdon;Rs=R-rr:polar(a,Rs,'black・')holdon;a=(2.3.*pi):pizz1000:5.6.*pi:s-h.*(((2./3.*pi)./a0)-((l./(2.*pi)).*sin(2.*pi.*(2./3.*pi)./aO)));S-sqrt(rO.*2-e.*2)*s