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）（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ii(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)住；(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

2、形凸輪機(jī)構(gòu)的已知參數(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p amin一a 24-A155102830°70?0.3Rr計(jì)算點(diǎn)數(shù)：N=90q1=60;近休止角61q2=180;推程運(yùn)動(dòng)角6 2q3=90;遠(yuǎn)休止角63q4=90;回程運(yùn)動(dòng)角6 4二推桿運(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：0y & <60 os=0；ds/d 6 =0;22_d s/d、=0;(2)推程階段：60o< 6 <180 o五次多項(xiàng)式運(yùn)動(dòng)規(guī)律：Q1=Q-60;s=10*h*Q1*Q1*Q1/(q

3、2*q2*q2)-15*h*Q1*Q1*Q1*Q1/(q2*q2*q2*q2)+6*h*Q1*Q1*Q 1*Q1*Q1/(q2*q2*q2*q2*q2);ds/d 6=30*h*Q1*Q1*QQ/(q2*q2*q2)-60*h*Q1*Q1*Q1*QQ/(q2*q2*q2*q2)+30*h*Q1*Q1*Q 1*Q1*QQ/(q2*q2*q2*q2*q2);d 2s /d、2=60*h*Q1*QQ*QQ/(q2*q2*q2)-180*h*Q1*Q1*QQ*QQ/(q2*q2*q2*q2)+120*h*Q1*Q1*Q1*QQ*QQ/(q2*q2*q2*q2*q2);(3)遠(yuǎn)休階段：180oW 6 &

4、lt;270o s=h=24;ds/d 6 =0;22_d s/d、=0;(4)回程階段：2700 6 <360Q2=Q-270;s=h*(1+cos(2*Q2/QQ)/2;ds/d 6 =-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(r0 2-e2)x=(s0+s)sin 6 +ecos 6y=(s0+s)cos 6 -esin 6(2)實(shí)際廓線方程先求x, y的一、二階導(dǎo)數(shù)dx=(ds/d 6 -e)*sin( 6 )+(s0+s)*cos( 6 );4dy=(ds/d 6 -e)*cos(

5、6 )-(s0+s)*sin( dxx=dss*sin( 6 )+(ds/d 6 -e)*cos( dyy=dss*cos( 6 )-(ds/d6 -e)*sin(x1=x-rr*coso;y1=y-rr*sino;再求 sin 0 , cos 0sin 8 =x' /sqrt(x ' )2+(y' )2) cos 0 =-y' /sqrt(x ' )2+(y' ) 2)g；6 )+ds/d 6 *cos( 6 )-(s0+s)*sin(6 );6 )-ds/d 6 *sin( 6 )-(s0+s)*cos(6 );最后求實(shí)際廓線方程x1=x-r

6、r*cos 0 ;y1=y-rr*sin 0 ;三程序框圖void main()double r0,or,rr,h,e,q1,q2,q3,q4,a,a11,a22Qpi,pa,paa,QQ,A1,A2,B1,B2,C1,C2;/*定義變量*/double xz90,yz90,sz90,x1z90,y1z90,Q1,Q2;double s0,s,x,y,y1,x1,dx,dxx,dy,dyy,ds,dss,sino,coso,p;int N,i,j;r0=19;e=5;h=28;rr=10;q1=60;q2=120;q3=90;q4=90;a11=30;a22=70;or=1;pi=3.1415

7、92653;pa=3; /*給已知量賦值 */N=90;A1=0;B1=0;C1=1000;for(; ;)Q=0;C1=1000;QQ=180/pi;r0=r0+or;s0=sqrt(r0*r0-e*e);for(i=1,j=0;i<=N;i+,j+)if(Q<60)/*近休階段*/s=0;ds=0;dss=0;a=atan(e/sqrt(r0*r0-e*e);/*求壓力角 */if(a>a11/QQ)break;elseif(a>A1)A1=a;A2=Q;else if(Q>=60&&Q<180)/*五次多項(xiàng)式運(yùn)動(dòng)*/Q1=Q-60;s=

8、10*h*Q1*Q1*Q1/(q2*q2*q2)-15*h*Q1*Q1*Q1*Q1/(q2*q2*q2*q2)+6*h*Q1*Q1*Q 1*Q1*Q1/(q2*q2*q2*q2*q2);ds=30*h*Q1*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);dss=60*h*Q1*QQ*QQ/(q2*q2*q2)-180*h*Q1*Q1*QQ*QQ/(q2*q2*q2*q2)+120*h* Q1*Q1*Q1*QQ*QQ/(q2*q2*q2*q2*q2);a=atan(fabs

9、(ds-e)/(sqrt(r0*r0-e*e)+s);if(a>a11/QQ)break;else/*遠(yuǎn)休階段*/if(a>A1)A1=a;A2=Q;else if(Q>=180&&Q<270)s=28;ds=0;dss=0;a=atan(fabs(ds-e)/(sqrt(r0*r0-e*e)+s);if(a>a22/QQ)break;elseif(a>B1)B1=a;B2=Q;else if(Q>=270&&Q<360)/*余弦加速度運(yùn)動(dòng) */Q2=Q-270;s=h*(1+cos(2*Q2/QQ)/2;ds=-

10、h*sin(2*Q2/QQ);dss=-2*h*cos(2*Q2/QQ);a=atan(fabs(ds-e)/(sqrt(r0*r0-e*e)+s);if(a>a22/QQ)break;elseif(a>B1)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*si

11、n(Q/QQ)-(s0+s)*cos(Q/QQ);sino=dx/(sqrt(dx*dx+dy*dy);coso=-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;y1=y-rr*sino;szj=s;yzj=y;xzj=x;x1zj=x1;y1zj=y1;p=pow(dx*dx+dy*dy,1.5)/(dx*dyy-dy*dxx); /*求理論輪廓曲率半徑*/if(p<0)paa=(fabs(p)-rr);if(paa<pa)break

12、;elseif(paa<C1)C1=paa;C2=Q;Q=Q+4;if(i=91)break;for(j=0;j<90;j+)printf("第組數(shù)據(jù)”,j+1);/*輸出數(shù)據(jù)*/printf("s=%f ",szj);printf("x=%f,y=%f;",xzj,yzj);printf("x1=%f,y1=%fn",x1zj,y1zj);printf("r0=%fn",r0);printf("推程最大壓力角(弧度)=%f,相應(yīng)凸輪轉(zhuǎn)角二%fn",A1,A2-4);pri

13、ntf("回程最大壓力角(弧度)=%f,相應(yīng)凸輪轉(zhuǎn)角=%fn",B1,B2-4);printf("最小曲率半徑二%f,相應(yīng)凸輪轉(zhuǎn)角=%fn",C1,C2-4);2.matalab 繪圖x=5.000000 6.625241 8.218205 9.771130 11.276451 12.726835 14.11521515.434827 16.679242 17.842397 18.918626 19.902685 20.789781 21.57559022.256286 22.828551 23.298459 23.706615 24.097554 24

14、.507799 24.96374525.480318 26.060379 26.694836 27.363383 28.035800 28.673715 29.23272929.664801 29.920768 29.952907 29.717406 29.176650 28.301221 27.07150725.478865 23.526246 21.228245 18.610551 15.708757 12.566564 9.2333765.761349 2.201948 -1.397906 -5.000000 -8.578422 -12.115052 -15.592657-18.9942

15、97 -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.

16、120045 -25.590019-22.095099 -18.694544 -15.438322 -12.365412 -9.502600 -6.863834-4.450154 -2.250205 -0.241303 1.608997 3.340895 5.000000;y=23.473389 23.067427 22.549082 21.920881 21.185883 20.347670 19.41032518.378415 17.256967 16.051445 14.767721 13.412051 11.991039 10.5116088.980965 7.406568 5.800

17、408 4.185421 2.572459 0.957412 -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 -43.407693 -45.651627 -47.575413-49.145373 -50.340385 -51.153688 -51.594160 -51.686950

18、-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 -0.407825 3.200559 6.792159 10.321065 13.71568716.907573 19.835197 22.44627

19、0 24.699658 26.566822 28.032724 29.09616429.769520 30.077928 30.057908 29.755535 29.224195 28.522064 27.70939126.845720 25.987174 25.183912 24.477872 23.900907 23.473389;x1=2.916667 3.864724 4.793953 5.699826 6.577930 7.423987 8.2338759.003649 9.729558 10.408065 11.035865 11.609900 12.127372 12.5857

20、6112.982834 13.316655 13.637197 13.989954 14.385216 14.841722 15.36972415.961917 16.595549 17.241474 17.871626 18.461055 18.986391 19.42387919.748587 19.934923 19.958013 19.795395 19.428612 18.844393 18.03524416.999369 15.739987 14.264216 12.581802 10.703984 8.642680 6.4099754.017612 1.476005 -1.207

21、747 -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 -37.40

22、3903-35.676949 -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 -1.795463 0.475989 2.916667;y1=13.692810 13.455999 13.153631 12.787181 12.358432 11.86947411.322689 10.720742 10.066564 9.363343 8.61450

23、4 7.823697 6.9947736.131771 5.238896 4.320498 3.219708 1.821843 0.191177 -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 -39.9

24、47376 -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 -27.065480-24.785228 -22.384225 -19.874168 -17.267286 -14.576280 -11.814260-8.994681 -6.131282 -3.238012 -0.328966 2.581683 5.10758

25、2 7.2405829.322318 11.314634 13.178220 14.874574 16.368490 17.630629 18.63974919.384302 19.863216 20.085799 20.070803 19.844722 19.439472 18.88962018.229473 17.490557 16.700486 15.884986 15.075231 14.320076 13.692810; 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=

26、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)5SXYX1Y1100.0000005.00000023.4733892.91666713.692810240.0000006.62524123.0674273.86472413.455999380.0000008.21820522.5490824.79395313.1536314120.0000009.77113021.9208815.69982612.7871815160.00000011.27645121.1858836.5

27、7793012.3584326200.00000012.72683520.3476707.42398711.8694747240.00000014.11521519.4103258.23387511.3226898280.00000015.43482718.3784159.00364910.7207429320.00000016.67924217.2569679.72955810.06656410360.00000017.84239716.05144510.4080659.36334311400.00000018.91862614.76772111.0358658.61450412440.00

28、000019.90268513.41205111.6099007.82369713480.00000020.78978111.99103912.1273726.99477314520.00000021.57559010.51160812.585761600000022.2562868.98096512.9828345.23889616600.00000022.8285517.40656813.3166554.32049817640.00985923.2984595.80040813.6371973.21970818680.07488823.7066154.185421

29、13.9899541.82184319720.23968024.0975542.57245914.3852160.19117720760.53804224.5077990.95741214.841722-1.60519421800.99382724.963745-0.67535115.369724-3.49576922841.62176025.480318-2.34945215.961917-5.41540123882.42827126.060379-4.09299916.595549-7.32053824923.41232226.694836-5.93525217.241474-9.1962

30、2525964.56624027.363383-7.90354917.871626-11.051016261005.87654328.035800-10.02060118.461055-12.905780271047.32477228.673715-12.30222818.986391-14.783306281088.88832029.232729-14.75560119.423879-16.7014802911210.54126029.664801-17.37803119.748587-18.6698123011612.25517829.920768-20.15634319.934923-2

31、0.6886333112014.00000029.952907-23.06682219.958013-22.7472953212415.74482229.717406-26.07573319.795395-24.8292593312817.45874029.176650-29.14038919.428612-26.9097523413219.11168028.301221-32.21069718.844393-28.9597883513620.67522827.071507-35.23114918.035244-30.9479323614022.12345725.478865-38.14314

32、916.999369-32.8423803714423.43376023.526246-40.88760715.739987-34.6127233814824.58767821.228245-43.40769314.264216-36.2311833915225.57172918.610551-45.65162712.581802-37.6732704015626.37824015.708757-47.57541310.703984-38.9179164116027.00617312.566564-49.1453738.642680-39.9473764216427.4619589.23337

33、6-50.3403856.409975-40.7472414316827.7603205.761349-51.1536884.017612-41.3068934417227.9251122.201948-51.5941601.476005-41.6205454517627.990141-1.397906-51.686950-1.207747-41.6887584618028.000000-5.000000-51.473389-4.033175-41.5202364718428.000000-8.578422-50.999220-6.919656-41.1377554818828.000000-

34、12.115052-50.276588-9.772424-40.5548554919228.000000-15.592657-49.309014-12.577583-39.7743755019628.000000-18.994297-48.101211-15.321465-38.8001195120028.000000-22.303399-46.659063-17.990702-37.6368335220428.000000-25.503841-44.989598-20.572290-36.2901835320828.000000-28.580030-43.100947-23.053652-3

35、4.7667325421228.000000-31.516981-41.002313-25.422699-33.0739005521628.000000-34.300384-38.703920-27.667890-31.2199365622028.000000-36.916679-36.216966-29.778285-29.2138725722428.000000-39.353120-33.553566-31.743603-27.0654805822828.000000-41.597836-30.726696-33.554270-24.7852285923228.000000-43.6398

36、92-27.750129-35.201463-22.3842256023628.000000-45.469338-24.638366-36.677159-19.8741686124028.000000-47.077263-21.406568-37.974167-17.2672866224428.000000-48.455831-18.070478-39.086169-14.5762806324828.000000-49.598328-14.646352-40.007747-11.8142606425228.000000-50.499187-11.150869-40.734411-8.99468

37、16525628.000000-51.154019-7.601061-41.262621-6.1312826626028.000000-51.559634-4.014222-41.589804-3.2380126726428.000000-51.714055-0.407825-41.714366-0.3289666826828.000000-51.6165303.200559-41.6356992.5816836927227.965897-51.2334536.792159-41.3763645.1075827027627.694066-50.36451310.321065-40.850805

38、7.2405827128027.155697-48.99167513.715687-40.0084529.3223187228426.361266-47.14474416.907573-38.85504911.3146347328825.326238-44.86611819.835197-37.40390313.1782207429224.070757-42.20913222.446270-35.67694914.8745747529622.619261-39.23594424.699658-33.70497216.3684907630021.000000-36.01508526.566822

39、-31.52682717.6306297730419.244492-32.61876428.032724-29.18772818.6397497830817.386907-29.12004529.096164-26.73682419.3843027931215.463398-25.59001929.769520-24.22431919.8632168031613.511407-22.09509930.077928-21.69840220.0857998132011.568926-18.69454430.057908-19.20219920.070803823249.673762-15.4383

40、2229.755535-16.77090819.844722833287.862804-12.36541229.224195-14.42919519.439472843326.171299-9.50260028.522064-12.18886618.88962853364.632172-6.86383427.709391-10.04678418.22947863403.275378-4.45015426.845720-7.98298917.490557873442.127327-2.25020525.987174-5.95930516.700486883481.210364-0.2413032

41、5.183912-3.91961515.884986893520.5423361.60899724.477872-1.79546315.075231903560.1362473.34089523.9009070.47598914.320076運(yùn)行結(jié)果截圖:17F:lDebugl.e>eF一弟第第第第第田第第第第56789111111rrr| rrr|rrr| nr| rrrj0 12 3 4 56 7 H 90111112 2二二二二二二二二二二二二二二二二一r 二二二二二居居居居居據(jù)常據(jù)據(jù)5=0,000000s=0.000800 s=0.000000 s=0s"fi.8680

42、00s =0.0000B0 s =0.00000M s=0.080000 a =0.0000B0 s =0.00000 S=0.000000 s=0.009859 s=0.074888 s-fl.239680 s=0.538042 5=0.993827x=11.2764Sl,y-21.185883 ；X1=&-57?930，4J1-12.358432 x=12.726835, y=20-34?6 70; xl =7-423987,5,1 =11.8S9474 x-14.115215,y=l?,410325；xl=8.233875,vl=11.322689 x=15.434827,=18

43、.378415 ；xl-9.003649,4,1=10.720742 x=l&.679242=17.2569675x1=9.729558,1=10.0&6S64x=17.8423?7,y=16 051445；xl=10.408065.vl=9.363343 x-18.918626,y=14.767721；xl=11-035865=8.&14504 x=19.902685,=13.412051；xl=11.609900ryl=7-823697 x-20.789781,y=ll. 991039；xl=12-127372,yl=6. 9?4773 x=21.575S90, 511S08 ；xl =12.585761=6-131771x-22.256286-8.988965 !xl-12.902834,1 -5.238896 x=22.828551 =7>4065&81 =13.316&55,=4.320498x=23 _ 298459 7=S .803408 ； xl-13