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

1、 ii大作業(yè)（二）凸輪機(jī)構(gòu)設(shè)計(jì)（題號(hào)：4-A）（一）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)（八）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

2、凸輪機(jī)構(gòu)的已知參數(shù)題號(hào)初選的基圓半徑RO/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-A155102830700.3Rr計(jì)算點(diǎn)數(shù)：N=90q1=60;近休止角51q2=180;推程運(yùn)動(dòng)角52q3=90;遠(yuǎn)休止角53二推桿運(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：0o660os=0；ds/d6=0;d2s/d52=0；推程階段：60o6180o五次多項(xiàng)式運(yùn)動(dòng)規(guī)律：Q1二Q-60;s=10*h*Q1*Q1*Ql/(q2*q2*q2)-15*h*Q1*Q1*Q1*Ql/(q2*q2*q2*q2)+6*h*Q1*Q1*Q1*Q1*Q1/(

3、q2*q2*q2*q2*q2);ds/dO=30*h*Ql*Q1*QQ/(q2*q2*q2)-60*h*Q1*Q1*Q1*QQ/(q2*q2*q2*q2)+30*h*Q1*Q1*Q1*Q1*QQ/(q2*q2*q2*q2*q2);d2s/d52=60*h*Q1*QQ*QQ/(q2*q2*q2)-180*h*Ql*Q1*QQ*QQ/(q2*q2*q2*q2)+l20*h*Q1*Q1*Q1*QQ*QQ/(q2*q2*q2*q2*q2);遠(yuǎn)休階段：180o6270os=h=24;ds/dO=0;d2s/d52=0;回程階段：270WO360Q2=Q-270;s=h*(l+cos(2*Q2/QQ)/2

4、;ds/dO=-h*sin(2*Q2/QQ);d2s/d52=-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)sinO+ecosOy=(s0+s)cosO-esinO(2)實(shí)際廓線方程先求x，y的一、二階導(dǎo)數(shù)dx=(ds/dO-e)*sin(O)+(s0+s)*cos(O);dy=(ds/d6-e)*cos(6)-(sO+s)*sin(6);dxx二dss*sin(6)+(ds/d6-e)*cos(6)+ds/d6*cos(6)-(s0+s)*sin(6);dyy=dss*cos(6)-(ds/d6-e)*sin(6)-ds/

5、d6*sin(6)-(s0+s)*cos(6);x1=x-rr*coso;yl二yrr*sino;再求sin0,cos0sin0=x/sqrt(x)2+(y)2)cos0=-y/sqrt(x)2+(y)2)最后求實(shí)際廓線方程x1=x-rr*cos8;y1=y-rr*sin8;三程序框圖 voidmain()doubler0,or,rr,h,e,ql,q2,q3,q4,a,all,a22,Q,pi,pa,paa,QQ,Al,A2,Bl,B2,Cl,C2;/*定義變量*/doublexz90,yz90,sz90,xlz90,ylz90,Ql,Q2;doublesO,s,x,y,yl,xl,dx,d

6、xx,dy,dyy,ds,dss,sino,coso,p;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;Cl=1000;for(;)Q=0;C1=1000;QQ=180/pi;rO二rO+or;s0=sqrt(r0*r0-e*e);for(i=1,j=0;i=N;i+,j+)if(Qall/QQ)break;elseif(aA1)A1=a;A2=Q;elseif(Q=60&Qa11/QQ)break;el

7、se/*遠(yuǎn)休階段*/if(aA1)A1=a;A2=Q;elseif(Q=180&Qa22/QQ)break;elseif(aB1)B1=a;B2=Q;elseif(Q=270&Qa22/QQ)break;elseif(aB1)B1=a;B2=Q;dx=(ds-e)*sin(Q/QQ)+(s0+s)*cos(Q/QQ);dy=(ds-e)*cos(Q/QQ)-(s0+s)*sin(Q/QQ);dxx=dss*sin(Q/QQ)+(ds-e)*cos(Q/QQ)+ds*cos(Q/QQ)-(s0+s)*sin(Q/QQ);dyy=dss*cos(Q/QQ)-(ds-e)*sin(Q/QQ)-ds*

8、sin(Q/QQ)-(s0+s)*cos(Q/QQ);sino二dx/(sqrt(dx*dx+dy*dy);coso二-dy/(sqrt(dx*dx+dy*dy);x=(s0+s)*sin(Q/QQ)+e*cos(Q/QQ);y=(s0+s)*cos(Q/QQ)-e*sin(Q/QQ);x1=x-rr*coso;yl二yrr*sino;szj=s;yzj=y;xzj=x;xlzj=xl;y1zj=y1;p=pow(dx*dx+dy*dy,1.5)/(dx*dyy-dy*dxx);半徑*/if(p0)paa=(fabs(p)-rr);if(paapa)break;elseif(paaC1)Cl=

9、paa;C2=Q;Q=Q+4;if(i=91)break;for(j=0;j90;j+)printf(第小組數(shù)據(jù)，j+l)；/*求理論輪廓曲率/*輸出數(shù)據(jù)*/printf(s=%f,szj);printf(x=%f,y=%f;,xzj,yzj);printf(xl=%f,yl=%fn,xlzj,ylzj);printf(rO=%fn,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=%f,相應(yīng)凸輪轉(zhuǎn)角=%fn,Cl,C2-4);2.matal

10、ab繪圖X二5.0000006.6252418.2182059.77113011.27645112.72683514.11521515.43482716.67924217.84239718.91862619.90268520.78978121.57559022.25628622.82855123.29845923.70661524.09755424.50779924.96374525.48031826.06037926.69483627.36338328.03580028.67371529.23272929.66480129.92076829.95290729.71740629.1766502

11、8.30122127.07150725.47886523.52624621.22824518.61055115.70875712.5665649.2333765.7613492.201948-1.397906-5.000000-8.578422-12.115052-15.592657-18.994297-22.303399-25.503841-28.580030-31.516981-34.300384-36.916679-39.353120-41.597836-43.639892-45.469338-47.077263-48.455831-49.598328-50.499187-51.1540

12、19-51.559634-51.714055-51.616530-51.233453-50.364513-48.991675-47.144744-44.866118-42.209132-39.235944-36.015085-32.618764-29.120045-25.590019-22.095099-18.694544-15.438322-12.365412-9.502600-6.863834-4.450154-2.250205-0.2413031.6089973.3408955.000000;y=23.47338923.06742722.54908221.92088121.1858832

13、0.34767019.41032518.37841517.25696716.05144514.76772113.41205111.99103910.5116088.9809657.4065685.8004084.1854212.5724590.957412-0.675351-2.349452-4.092999-5.935252-7.903549-10.020601-12.302228-14.755601-17.378031-20.156343-23.066822-26.075733-29.140389-32.210697-35.231149-38.143149-40.887607-43.407

14、693-45.651627-47.575413-49.145373-50.340385-51.153688-51.594160-51.686950-51.473389-50.999220-50.276588-49.309014-48.101211-46.659063-44.989598-43.100947-41.002313-38.703920-36.216966-33.553566-30.726696-27.750129-24.638366-21.406568-18.070478-14.646352-11.150869-7.601061-4.014222-0.4078253.2005596.

15、79215910.32106513.71568716.90757319.83519722.44627024.69965826.56682228.03272429.09616429.76952030.07792830.05790829.75553529.22419528.52206427.70939126.84572025.98717425.18391224.47787223.90090723.473389;x1=2.9166673.8647244.7939535.6998266.5779307.4239878.2338759.0036499.72955810.40806511.03586511

16、.60990012.12737212.58576112.98283413.31665513.63719713.98995414.38521614.84172215.36972415.96191716.59554917.24147417.87162618.46105518.98639119.42387919.74858719.93492319.95801319.79539519.42861218.84439318.03524416.99936915.73998714.26421612.58180210.7039848.6426806.4099754.0176121.476005-1.207747

17、-4.033175-6.919656-9.772424-12.577583-15.321465-17.990702-20.572290-23.053652-25.422699-27.667890-29.778285-31.743603-33.554270-35.201463-36.677159-37.974167-39.086169-40.007747-40.734411-41.262621-41.589804-41.714366-41.635699-41.376364-40.850805-40.008452-38.855049-37.403903-35.676949-33.704972-31

18、.526827-29.187728-26.736824-24.224319-21.698402-19.202199-16.770908-14.429195-12.188866-10.046784-7.982989-5.959305-3.919615-1.7954630.4759892.916667;y1二13.69281013.45599913.15363112.78718112.35843211.86947411.32268910.72074210.0665649.3633438.6145047.8236976.9947736.1317715.2388964.3204983.2197081.

19、8218430.191177-1.605194-3.495769-5.415401-7.320538-9.196225-11.051016-12.905780-14.783306-16.701480-18.669812-20.688233-22.747295-24.829259-26.909752-28.959788-30.947932-32.842380-34.612723-36.231183-37.673270-38.917916-39.947376-40.747241-41.306893-41.620545-41.688758-41.520236-41.137755-40.554855-

20、39.774375-38.800119-37.636833-36.290183-34.766732-33.073900-31.219936-29.213872-27.065480-24.785228-22.384225-19.874168-17.267286-14.576280-11.814260-8.994681-6.131282-3.238012-0.3289662.5816835.1075827.2405829.32231811.31463413.17822014.87457416.36849017.63062918.63974919.38430219.86321620.08579920

21、.07080319.84472219.43947218.88962018.22947317.49055716.70048615.88498615.07523114.32007613.692810;plot(x1,y1,x,y,r)：五程序計(jì)算結(jié)果及分析基圓半徑r0=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=14.000000,相應(yīng)凸輪轉(zhuǎn)角=340.000000序號(hào)6SXYX1Y1100.0000005.00000023.4733892.91666713.

22、692810240.0000006.62524123.0674273.86472413.455999380.000000&21820522.5490824.79395313.1536314120.0000009.77113021.9208815.69982612.7871815160.00000011.27645121.1858836.57793012.3584326200.00000012.72683520.3476707.42398711.8694747240.00000014.11521519.4103258.23387511.3226898280.00000015.43482718.3

23、784159.00364910.7207429320.00000016.67924217.2569679.72955810.06656410360.00000017.84239716.05144510.4080659.36334311400.00000018.91862614.76772111.0358658.61450412440.00000019.90268513.41205111.6099007.82369713480.00000020.78978111.99103912.1273726.99477314520.00000021.57559010.51160812.5857616.131

24、77115560.00000022.2562868.98096512.9828345.23889616600.00000022.8285517.40656813.3166554.32049817640.00985923.2984595.80040813.6371973.21970818680.07488823.7066154.18542113.9899541.82184319720.23968024.0975542.57245914.3852160.19117720760.53804224.5077990.95741214.841722-1.60519421800.99382724.96374

25、5-0.67535115.369724-3.49576922841.62176025.480318-2.34945215.961917-5.41540123882.42827126.060379-4.09299916.595549-7.32053824923.41232226.694836-5.93525217.241474-9.19622525964.56624027.363383-7.90354917.871626-11.051016261005.87654328.035800-10.02060118.461055-12.905780271047.32477228.673715-12.30

26、222818.986391-14.783306281088.88832029.232729-14.75560119.423879-16.7014802911210.54126029.664801-17.37803119.748587-18.6698123011612.25517829.920768-20.15634319.934923-20.6886333112014.00000029.952907-23.06682219.958013-22.7472953212415.74482229.717406-26.07573319.795395-24.8292593312817.45874029.1

27、76650-29.14038919.428612-26.9097523413219.11168028.301221-32.21069718.844393-28.9597883513620.67522827.071507-35.23114918.035244-30.9479323614022.12345725.478865-38.14314916.999369-32.8423803714423.43376023.526246-40.88760715.739987-34.6127233814824.58767821.228245-43.40769314.264216-36.231183391522

28、5.57172918.610551-45.65162712.581802-37.6732704015626.37824015.708757-47.57541310.703984-38.9179164116027.00617312.566564-49.1453738.642680-39.9473764216427.4619589.233376-50.3403856.409975-40.7472414316827.7603205.761349-51.1536884.017612-41.3068934417227.9251122.201948-51.5941601.476005-41.6205454

29、517627.990141-1.397906-51.686950-1.207747-41.6887584618028.000000-5.000000-51.473389-4.033175-41.5202364718428.000000-8.578422-50.999220-6.919656-41.1377554818828.000000-12.115052-50.276588-9.772424-40.5548554919228.000000-15.592657-49.309014-12.577583-39.7743755019628.000000-18.994297-48.101211-15.

30、321465-38.8001195120028.000000-22.303399-46.659063-17.990702-37.6368335220428.000000-25.503841-44.989598-20.572290-36.2901835320828.000000-28.580030-43.100947-23.053652-34.7667325421228.000000-31.516981-41.002313-25.422699-33.0739005521628.000000-34.300384-38.703920-27.667890-31.2199365622028.000000

31、-36.916679-36.216966-29.778285-29.2138725722428.000000-39.353120-33.553566-31.743603-27.0654805822828.000000-41.597836-30.726696-33.554270-24.7852285923228.000000-43.639892-27.750129-35.201463-22.3842256023628.000000-45.469338-24.638366-36.677159-19.8741686124028.000000-47.077263-21.406568-37.974167

32、-17.2672866224428.000000-48.455831-18.070478-39.086169-14.5762806324828.000000-49.598328-14.646352-40.007747-11.8142606425228.000000-50.499187-11.150869-40.734411-8.9946816525628.000000-51.154019-7.601061-41.262621-6.1312826626028.000000-51.559634-4.014222-41.589804-3.2380126726428.000000-51.714055-

33、0.407825-41.714366-0.3289666826828.000000-51.6165303.200559-41.6356992.5816836927227.965897-51.2334536.792159-41.3763645.1075827027627.694066-50.36451310.321065-40.8508057.2405827128027.155697-48.99167513.715687-40.0084529.3223187228426.361266-47.14474416.907573-38.85504911.3146347328825.326238-44.86611819.835197-37.40390313.1782207429224.070757-42.20913222.446270-35.67694914.8745747529622.619261-39.23594424.69