凸輪機(jī)構(gòu)大作業(yè)西工大機(jī)械原理要點(diǎn)

1、大作業(yè)（二）凸輪機(jī)構(gòu)設(shè)計(jì)（題號(hào)：4-A）（-）題目及原始數(shù)據(jù)（二）推桿運(yùn)動(dòng)規(guī)律及凸輪廓線方程（三）程序框圖（四）計(jì)算程序(五程序計(jì)算結(jié)果及分析(六凸輪機(jī)構(gòu)圖(七心得體會(huì)(A參考書一題目及原始數(shù)據(jù)試用計(jì)算機(jī)輔助設(shè)計(jì)完成偏置直動(dòng)滾子推桿盤形凸輪機(jī)構(gòu)的設(shè)計(jì)(1)推程運(yùn)動(dòng)規(guī)律為五次多項(xiàng)式運(yùn)動(dòng)規(guī)律，回程運(yùn)動(dòng)規(guī)律為余弦加速度運(yùn)動(dòng)規(guī)律；(2)打印出原始數(shù)據(jù)；(3)打印出理論輪廓和實(shí)際輪廓的坐標(biāo)值；(4)打印出推程和回程的最大壓力角，以及出現(xiàn)最大壓力角時(shí)凸輪的相應(yīng)轉(zhuǎn)角;(5)打印出凸輪實(shí)際輪廓曲線的最小曲率半徑，以及相應(yīng)的凸輪轉(zhuǎn)角；(6)打印最后所確定的凸輪的基圓半徑。表一偏置直動(dòng)滾子推桿盤形凸輪機(jī)構(gòu)的已知參

2、數(shù)題號(hào)初選的基圓半徑R0/mm偏距E/mm滾子半徑Rr/mm推桿行程h/mm許用壓力角許用最小曲率半徑pamina1a24-A155102830°70?0.3Rr計(jì)算點(diǎn)數(shù)：N=90ql=60;近休止角S1q2=180;推程運(yùn)動(dòng)角S2q3=90;遠(yuǎn)休止角S3q4=90;回程運(yùn)動(dòng)角S4推桿運(yùn)動(dòng)規(guī)律及凸輪廓線方程推桿運(yùn)動(dòng)規(guī)律：(1)近休階段：0刪60。ds/dS=0;d2s/ds2=O;(2)推程階段：60。<S<1800五次多項(xiàng)式運(yùn)動(dòng)規(guī)律：Ql=Q-60;s=10*h*Ql*Ql*Ql/(q2*q2*q2)-15*h*Ql*Ql*Ql*Ql/(q2*q2*q2*q2)+6*h

3、*Ql*Ql*Q1*Ql*Ql/(q2*q2*q2*q2*q2);ds/dS=30*h*Ql*Ql*QQ/(q2*q2*q2)-60*h*Ql*Ql*Ql*QQ/(q2*q2*q2*q2)+30*h*Ql*Ql*Q1*Ql*QQ/(q2*q2*q2*q2*q2);d2s/ds2=60*h*Ql*QQ*QQ/(q2*q2*q2)-180*h*Ql*Ql*QQ*QQ/(q2*q2*q2*q2)+l20*h*Ql*Ql*Ql*QQ*QQ/(q2*q2*q2*q2*q2);遠(yuǎn)休階段:180°wS<270°s=h=24;ds/dS=0;ds/d、=0;回程階段：270wS<

4、;360Q2=Q-270;s=h*(l+cos(2*Q2/QQ)/2;ds/dS=-h*sin(2*Q2/QQ);d2s/d、2=-2*h*cos(2*Q2/QQ);凸輪廓線方程：(1)理論廓線方程：s0=sqrt(r02-e2)x=(s0+s)sinS+ecosSy=(s0+s)cosS-esinS實(shí)際廓線方程先求x,y的一、二階導(dǎo)數(shù)dx=(ds/dS-e)*sin(S)+(s0+s)*cos(S);7dy=(ds/dS-e)*cos(S)-(sO+s)*sin(S);S)-(sO+s)*sin(S);S)-(sO+s)*cos(S);dxx=dss*sin(S)+(ds/dS-e)*cos

5、(S)+ds/dS*cos(dyy=dss*cos(S)-(ds/dS-e)*sin(S)-ds/dS*sin(xl=x-rr*coso;yl=y-rr*sino;再求sin0,cos022sin0=xJ/sqrt(x')+(y')22cos0=-y'/sqrt(x')+(y')最后求實(shí)際廓線方程xl=x-rr*cos0;yl=y-rr*sin0;三程序框圖voidmain()doubler0,or,rr,h,e,qLq2,q3,q4,a,all,a22,Q,pi,pa,paa,QQ,ALA2,BLB2,CLC2;/*定義變量*/doublexz90,y

6、z90,sz90,xlz90,ylz90,QLQ2;doublesO,s,x,y,yLxLdx,dxx,dy,dyy,ds,dss,sinozcosozp;intN,i,j;r0=19;e=5;h=28;rr=10;ql=60;q2=120;q3=90;q4=90;all=30;a22=70;or=l;pi=3.141592653;pa=3;/*給已知量賦值*/N=90;Al=0;Bl=0;C仁1000;for(;)Q=0;3=1000;QQ=180/pi;rO=rO+or;sO=sqrt(rO*rO-e*e);for(i=lj=0;i<=N;i+j+)if(Q<60)/*近體階段

7、*/s=0;ds=0;dss=0;a=atan(e/sqrt(rO*rO-e*e);/*求壓力角*/if(a>all/QQ)break;elseif(a>Al)Al=a;A2=Q;)elseif(Q>=60&&Q<180)/*五次多項(xiàng)式運(yùn)動(dòng)*/Ql=Q-60;s=10*h*Ql*Ql*Ql/(q2*q2*q2)-15*h*Ql*Ql*Ql*Ql/(q2*q2*q2*q2)+6*h*Ql*Ql*Ql*Ql*Ql/(q2*q2*q2*q2*q2);ds=30*h*Ql*Ql*QQ/(q2*q2*q2)-60*h*Ql*Ql*Ql*QQ/(q2*q2*q2*q

8、2)+30*h*Ql*Ql*Ql*Ql*QQ/(q2*q2*q2*q2*q2);dss=60*h*Ql*QQ*QQ/(q2*q2*q2)-180*h*Ql*Ql*QQ*QQ/(q2*q2*q2*q2)+120*h*Ql*Ql*Ql*QQ*QQ/(q2*q2*q2*q2*q2);a=atan(fabs(ds-e)/(sqrt(rO*rO-e*e)+s);if(a>all/QQ)break;else/*遠(yuǎn)休階段*/if(a>Al)Al=a;A2=Q;elseif(Q>=180&&Q<270)s=28;ds=O;dss=O;a=atan(fabs(ds-e)/

9、(sqrt(rO*rO-e*e)+s);if(a>a22/QQ)break;elseif(a>Bl)Bl=a;B2=Q;)余弦加速度運(yùn)動(dòng)Velseif(Q>=270&&Q<360)/*Q2=Q-270;s=h*(l+cos(2*Q2/QQ)/2;ds=-h*sin(2*Q2/QQ);dss=-2*h*cos(2*Q2/QQ);a=atan(fabs(ds-e)/(sqrt(rO*rO-e*e)+s);if(a>a22/QQ)break;elseif(a>Bl)13Bl=a;B2=Q;dx=(ds-e)*sin(Q/QQ)+(sO+s)*cos

10、(Q/QQ);dy=(ds-e)*cos(Q/QQ)-(sO+s)*sin(Q/QQ);dxx=dss*sin(Q/QQ)+(ds-e)*cos(Q/QQ)+ds*cos(Q/QQ)-(sO+s)*sin(Q/QQ);dyy=dss*cos(Q/QQ)-(ds-e)*sin(Q/QQ)-ds*sin(Q/QQ)-(sO+s)*cos(Q/QQ);1sino=dx/(sqrt(dx*dx+dy*dy);coso-dy/(sqrt(dx*dx+dy*dy);x=(sO+s)*sin(Q/QQ)+e*cos(Q/QQ);y=(sO+s)*cos(Q/QQ)-e*sin(Q/QQ);xl=x-rr*c

11、oso;yl=y-rr*sino;szj=s;yzj=y;xzj=x;xlzj=xl;ylzg=yl;p=pow(dx*dx+dy*dyz1.5)/(dx*dyy-dy*dxx);半徑*/if(P<0)paa=(fabs(p)-rr);if(paavpa)break;elseif(paa<Cl)Cl=paa;C2=Q;)Q=Q+4;)if(i=91)break;2for(j=0;j<90;j+)printf("第4組數(shù)據(jù)+/*printf("s=%fprintf(nx=%f/y=%f;n,xzj/yzj);printf(nxl=%f,y仁)printf(n

12、rO=%fnn,rO);printf("推程最大壓力角(弧度)=%f,相應(yīng)凸輪轉(zhuǎn)角=%fn”,Al,A2-4);printf("回程最大壓力角(弧度)=%f,相應(yīng)凸輪轉(zhuǎn)角=%fn”,Bl,B2-4);printf("最小曲率半徑二%f,相應(yīng)凸輪轉(zhuǎn)角=%Ann,Cl,C2-4);求理論輪廓曲率2.matalab繪圖x=5.0000006.6252418.2182059.77113011.27645112.72683514.11521515.43482716.67924217.84239718.91862619.90268520.78978121.57559022.2

13、5628622.82855123.29845923.70661524.09755424.50779924.96374525.48031826.06037926.69483627.36338328.03580028.67371529.23272929.66480129.92076829.95290729.71740629.17665028.30122127.07150725.47886523.52624621.22824518.61055115.70875712.5665649.2333765.7613492.201948-1.397906-5.000000-8.578422-12.115052

14、-15.592657-18.994297-22.303399-25.503841-28.580030-31.516981-34.300384-36.916679-39.353120-41.597836-43.639892-45.469338-47.077263-48.455831-49.598328-50.499187-51.154019-51.559634-51.714055-51.616530-51.233453-50.364513-48.991675-47.144744-44.866118-42.209132-39.235944-36.015085-32.618764-29.120045

15、-25.590019-輸出數(shù)據(jù)*/22.095099-18.694544-15.438322-12.365412-9.502600-6.863834-4.450154-2.250205-0.2413031.6089973.3408955.000000;y=23.47338923.06742722.54908221.92088121.18588320.34767019.41032518.37841517.25696716.05144514.76772113.41205111.99103910.5116088.9809657.4065685.8004084.1854212.5724590.9574

16、12-0.675351-2.349452-4.092999-5.935252-7.903549-10.020601-12.302228-14.755601-17.378031-20.156343-23.066822-26.075733-29.140389-32.210697-35.231149-38.143149-40.887607-43.407693-45.651627-47.575413-49.145373-50.340385-51.153688-51.594160-51.686950-51.473389-50.999220-50.276588-49.309014-48.101211-46

17、.659063-44.989598-43.100947-41.002313-38.703920-36.216966-33.553566-30.726696-27.750129-24.638366-21.406568-18.070478-14.646352-11.150869-7.601061-4.014222-0.4078253.2005596.79215910.32106513.71568716.90757319.83519722.44627024.69965826.56682228.03272429.09616429.76952030.07792830.05790829.75553529.

18、22419528.52206427.70939126.84572025.98717425.18391224.47787223.90090723.473389;xl=2.9166673.8647244.7939535.6998266.5779307.4239878.2338759.0036499.72955810.40806511.03586511.60990012.12737212.58576112.98283413.31665513.63719713.98995414.38521614.84172215.36972415.96191716.59554917.24147417.87162618

19、.46105518.98639119.42387919.74858719.93492319.95801319.79539519.42861218.84439318.03524416.99936915.73998714.26421612.58180210.7039848.6426806.4099754.0176121.476005-1.207747-4.033175-6.919656-9.772424-12.577583-15.321465-17.990702-20.572290-23.053652-25.422699-27.667890-29.778285-31.743603-33.55427

20、0-35.201463-36.677159-37.974167-39.086169-40.007747-40.734411-41.262621-41.589804-41.714366-41.635699-41.376364-40.850805-40.008452-38.855049-37.403903-35.676949-33.704972-31.526827-29.187728-26.736824-24.224319-21.698402-19.202199-16.770908-14.429195-12.188866-10.046784-7.982989-5.959305-3.919615-1

21、.7954630.4759892.916667;yl=13.69281013.45599913.15363112.78718112.35843211.86947411.32268910.72074210.0665649.3633438.6145047.8236976.9947736.1317715.2388964.3204983.2197081.8218430.191177-1.605194-3.495769-5.415401-7.320538-9.196225-11.051016-12.905780-14.783306-16.701480-18.669812-20.688233-22.747

22、295-24.829259-26.909752-28.959788-30.947932-32.842380-34.612723-36.231183-37.673270-38.917916-39.947376-40.747241-41.306893-41.620545-41.688758-41.520236-41.137755-40.554855-39.774375-38.800119-37.636833-36.290183-34.76673233,073900-31.219936-29.213872-27.065480-24.785228-22.384225-19.874168-17.2672

23、86-14.576280-11.814260-8.994681-6.131282-3.238012-0.3289662.5816835.1075827.2405829.3223181131463413.17822014.87457416.36849017.63062918.63974919.38430219.86321620.08579920.07080319.84472219.43947218.88962018.22947317.49055716.70048615.88498615.07523114.32007613.692810;plot(xl,yLx,y,T)1五程序計(jì)算結(jié)果及分析半徑r

24、O=24.000000推程最大壓力角（弧度）=0.513512相應(yīng)凸輪轉(zhuǎn)角=172.000000回程最大壓力角（弧度）=0.766377相應(yīng)凸輪轉(zhuǎn)角=352.000000最小曲率半徑二14,000000相應(yīng)凸輪轉(zhuǎn)角=340.000000序號(hào)12345678910111213145o481216202428323640444852S0.0000000.0000000.0000000.0000000.0000000.0000000.0000000.0000000.0000000.0000000.0000000.0000000.0000000.0000005.0000006.6252418.2182

25、059.77113011.27645112.72683514.11521515.43482716.67924217.84239718.91862619.90268520.78978121.575590YXI23.4733892.91666723.0674273.86472422.54908221.92088121.18588320.34767019.41032518.37841517.25696716.05144514.76772113.41205111.99103910.5116084.7939535.6998266.5779307.4239878.2338759.0036499.72955

26、810.40806511.03586511.60990012.12737212.585761Y113.69281013.45599913.15363112.78718112.35843211.86947411.32268910.72074210.0665649.3633438.6145047.8236976.9947736.13177115161718192021222324252627282930313233343536373839404142434445464748495051525354555657585660646872768084889296100104108112116120124

27、1281321361401441481521561601641681721761801841881921962002042082122162202242280.0000000.0000000.0098590.0748880.2396800.5380420.9938271.6217602.4282713.4123224.5662405.8765437.3247728.88832010.54126012.25517814.00000015.74482217.45874019.11168020.67522822.12345723.43376024.58767825.57172926.37824027

28、.00617327.46195827.76032027.92511227.99014128.00000028.00000028.00000028.00000028.00000028.00000028.00000028.00000028.00000028.00000028.00000028.00000028.00000022.25628622.82855123.29845923.70661524.09755424.50779924.96374525.48031826.06037926.69483627.36338328.03580028.67371529.23272929.66480129.92

29、076829.95290729.71740629.17665028.30122127.07150725.47886523.52624621.22824518.61055115.70875712.5665649.2333765.7613492.2019488.9809657.4065685.8004084.1854212.5724590.957412-0.675351-2.349452-4.092999-5.935252-7.903549-10.020601-12.302228-14.755601-17.378031-20.156343-23.066822-26.075733-29.140389

30、-32.210697-35.231149-38.143149-40.887607-43.407693-45.651627-47.575413-49.145373-50.340385-51.153688-51.59416012.98283413.31665513.63719713.98995414.38521614.84172215.36972415.96191716.59554917.24147417.87162618.46105518.98639119.42387919.74858719.93492319.95801319.79539519.42861218.84439318.0352441

31、6.99936915.73998714.26421612.58180210.7039848.6426806.4099754.0176121.476005-1.397906-51.686950-1.207747-5.000000-51.473389-4.033175-8.578422-50.999220-6.919656-12.115052-50.276588-9.772424-15.592657-49.309014-12.577583-18.994297-48.101211-15.321465-22.303399-46.659063-17.990702-25.503841-44.989598-

32、20.572290-28.580030-43.100947-23.053652-31.516981-41.002313-25.422699-34.300384-38.703920-27.667890-36.916679-36.216966-29.778285-39.353120-33.553566-31.743603-41.597836-30.726696-33.5542705.2388964.3204983.2197081.8218430.191177-1.605194-3.495769-5.415401-7.320538-9.196225-11.051016-12.905780-14.78

33、3306-16.701480-18.669812-20.688633-22.747295-24.829259-26.909752-28.959788-30.947932-32.842380-34.612723-36.231183-37.673270-38.917916-39.947376-40.747241-41.306893-41.620545-41.688758-41.520236-41.137755-40.554855-39.774375-38.800119-37.636833-36.290183-34.766732-33.073900-31.219936-29.213872-27.06

34、5480-24.785228596061626364656667686970717273747576777879808182838485868788899023223624024424825225626026426827227628028428829229630030430831231632032432833233634034434835235628.00000028.00000028.00000028.00000028.00000028.00000028.00000028.00000028.00000028.00000027.96589727.69406627.15569726.361266

35、25.32623824.07075722.61926121.00000019.24449217.38690715.46339813.51140711.5689269.6737627.8628046.1712994.6321723.2753782.1273271.2103640.5423360.136247-43.639892-45.469338-47.077263-48.455831-49.598328-50.499187-51.154019-51.559634-51.714055-51.616530-51.233453-50.364513-48.991675.47.144744-44.866

36、118-42.209132-39.235944-36.015085-32.618764-29.120045-25.590019-22.095099-18.694544-15.438322-12.365412-9.502600-6.863834-4.450154-2.250205-0.2413031.6089973.340895-27.750129-24.638366-21.406568-18.070478-14.646352-11.150869-7.601061-4.014222-0.4078253.2005596.79215910.32106513.71568716.90757319.835

37、19722.44627024.69965826.56682228.03272429.09616429.76952030.07792830.05790829.75553529.22419528.52206427.70939126.84572025.98717425.18391224.47787223.900907運(yùn)行結(jié)果截圖:-35.201463-36.677159-37.974167-39.086169-40.007747,40.734411-41.262621-41.589804-41.714366-41.635699-41.376364-40.850805-40.008452-38.855

38、049-37.403903-35.676949-33.704972-31.526827-29.187728-26.736824-24.224319-21.698402-19.202199-16.770908-14.429195-12.188866-10.046784-7.982989-5.959305-3.919615-1.7954630.475989-22.384225-19.874168-17.267286-14.576280-11.814260-8.994681-6.131282-3.238012-0.3289662.5816835.1075827.2405829.32231811.31

39、463413.17822014.87457416.36849017.63062918.63974919.38430219.86321620.08579920.07080319.84472219.43947218.8896218.2294717.49055716.70048615.88498615.07523114.320076F:lDebugl.e>eFm/umTmmIJ數(shù)數(shù)數(shù)S=0-000000s=0.000000s=0<000800s=0_000000s=0Isnfi.868000s=0.0000B0s=0.880000s=0。豳00陌a=0.0000B0s=0.600000S

40、=0.000000Is=0.009859s=0.074888每.fl.239680x=11.2764SI,y-21.185883;Xl=&-57?930,4J1-12.358432x=12.726835ry=20-34?670;xl=7-423987,5,1=ll-8S9474x-14.115215,y=7410325;xl=8.233875,vl=ll-322689x=15.434827rA=18.378415;xl-9.003649,44=10.720742x=l&.679242.A=17.2569675xl=9.729558,Al=10.0&6564x=17.842377,y=16-051445;xl=10-4B月065二9-363343x-18-918626,A=14.767721;xl=ll-035865=8-&14504x=19-902685,y=13.412051;xl=11-609900,yl-7-823697x-20.789781,y=ll.991039;xl=12-12歸72=6-974773x=21.575S90,sr=10-511S08;xl=12.585761-6-131771IJC-22256286A-8.988965Jxl-12.902834,A1-5.238896x=22.828551A=7>