机械原理大作业 凸轮设计(1)(1)

1、目录一、 题目及原始数据3二、 推杆运动规律及凸轮廓线方程4三、 计算程序5四、 计算结果及分析12五、 凸轮机构图12六、 体会及建议15七、 参考书151、 题目及原始数据试用计算机辅助设计完成偏置直动滚子推杆盘形凸轮机构的设计表1 凸轮结构的推杆运动规律直动推杆组题号推程运动规律回程运动规律10-A等加速等减速运动五次多项式运动表2 凸轮结构的推杆在近休、推程、远休及回程段的凸轮转角题号近休凸轮转角推程凸轮转角远休凸轮转角回程凸轮转角10-A0°60°60°180°180°270°270°360°表3 偏置直

2、动滚子推杆盘形凸轮机构的已知参数题号初选的基圆半径r0/mm偏距e/mm滚子半径Rr/mm推杆行程h/mm许用压力角许用最小曲率半径amin1210-A15+5102830700.3rr（1）打印出原始数据；（2）打印出理论轮廓和实际轮廓的坐标值；（3）打印出推程和回程的最大压力角，以及出现最大压力角时凸轮的相应转角；（4）打印出凸轮实际轮廓曲线的最小曲率半径，以及相应的凸轮转角；（5）打印最后所确定的凸轮的基圆半径。计算点数：100二、推杆运动规律及凸轮廓线方程1、推杆运动规律（1） 近休阶段：0°< 60°（2） 推程阶段：60°< 180

3、6;等加速段运动方程s=2h（3） 远休阶段：210°< 280°（4） 回程阶段：280°< 360°2、 凸轮廓线方程(1) 理论廓线方程(2) 工作廓线方程x=y=3、 计算程序#include<stdio.h>#include<math.h>void main() /freopen("xxx.txt","w",stdout);double r0,dr,rr,h,e,q1,q2,q3,q4,a,a11,a22,Q,pi,pa,paa,QQ,A1,A2,B1,B2,C1,C2

4、; /*定义变量*/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=22;e=14;h=35;rr=18;q1=30;q2=180;q3=70;q4=80;a11=35;a22=65;dr=1;pi=3.141592653;pa=6.3; /*给已知量赋值*/N=90;A1=0;B1=0;C1=1000;for(; ;)Q=0;C1=1000;QQ=180/pi;r0=r0+dr;s0=sqrt(r0*r0-e*e);for(i

5、=1,j=0;i<=N;i+,j+)if(Q<30) /*近休阶段*/s=0;ds=0;dss=0;a=atan(e/sqrt(r0*r0-e*e); /*求压力角*/if(a>a11/QQ)break;elseif(a>A1)A1=a; A2=Q;else if(Q>=30&&Q<210) /*推程阶段*/ Q1=Q-30; s=h*(1-cos(pi*Q1/q2)/2; ds=pi*h*sin(pi*Q1/q2)/(2*q2); dss=pi*pi*h*cos(pi*Q1/q2)/(2*q2*q2); a=atan(fabs(ds-e)/

6、(sqrt(r0*r0-e*e)+s); if(a>a11/QQ) break; else /*远休阶段*/ if(a>A1) A1=a; A2=Q; else if(Q>=210&&Q<280) s=35; ds=0; dss=0; a=atan(fabs(ds-e)/(sqrt(r0*r0-e*e)+s); if(a>a22/QQ) break; else if(a>B1) B1=a; B2=Q; else if(Q>=280&&Q<360) /*回程阶段*/ Q2=Q-280; s=h*(1-(Q2/q4)+

7、sin(2*pi*Q2/q4)/(2*pi); ds=h*(cos(2*pi*Q2/q4)-1)/q4; dss=-2*pi*h*sin(2*pi*Q2/q4)/(q4*q4); a=atan(fabs(ds-e)/(sqrt(r0*r0-e*e)+s); if(a>a22/QQ) break; else if(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/Q

8、Q)-(s0+s)*sin(Q/QQ);dyy=dss*cos(Q/QQ)-(ds-e)*sin(Q/QQ)-ds*sin(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)

9、; /*求理论轮廓曲率半径*/if(p<0) paa=(fabs(p)-rr); if(paa<pa) break; else if(paa<C1) C1=paa; C2=Q; Q=Q+4;if(i=91)break;for(j=0;j<90;j+) printf("第%d组数据 ",j+1); /*输出数据*/ printf("s=%f ",szj); printf("x=%f ,y=%f ;",xzj,yzj); printf("x1=%f ,y1=%fn",x1zj,y1zj); pr

10、intf("r0=%fn",r0); printf("推程最大压力角(弧度)=%f,相应凸轮转角=%fn",A1,A2-4); printf("回程最大压力角(弧度)=%f,相应凸轮转角=%fn",B1,B2-4);printf("最小曲率半径=%f,相应凸轮转角=%fn",C1,C2-4); 4、 计算结果及分析5、 凸轮机构图Matlab绘图x=14.000000 15.410715 16.746350 18.000399 19.166752 20.239726 21.214094 22.085109 22.8

11、54177 23.556980 24.209136 24.819841 25.396590 25.944936 26.468300 26.967836 27.442352 27.888294 28.299787 28.668732 28.984970 29.236490 29.409692 29.489697 29.460687 29.306288 29.009969 28.555457 27.927166 27.110613 26.092836 24.862782 23.411678 21.733355 19.824539 17.685091 15.318189 12.730454 9.93

12、2014 6.936504 3.760995 0.425869 -3.045381 -6.626403 -10.288302 -14.000000 -17.728645 -21.440063 -25.099229 -28.670776 -32.119500 -35.410884 -38.511609 -41.395702 -44.073115 -46.535808 -48.771783 -50.770147 -52.521164 -54.016303 -55.248280 -56.211093 -56.900051 -57.311798 -57.444328 -57.296994 -56.87

13、0516 -56.166970 -55.189784 -53.943719 -52.434845 -50.642721 -48.444586 -45.721768 -42.406762 -38.494686 -34.046072 -29.180734 -24.063677 -18.885153 -13.837781 -9.093986 -4.786983 -0.997898 2.249248 4.984188 7.279382 9.233165 10.949732 14.000000;y=20.712315 19.685270 18.562321 17.348938 16.051032 14.

14、674928 13.227328 11.715287 10.155210 8.605179 7.071191 5.547906 4.028334 2.504151 0.966043 -0.595920 -2.191898 -3.831884 -5.525313 -7.280673 -9.105140 -11.004237 -12.981525 -15.038337 -17.173559 -19.383462 -21.661588 -23.998702 -26.382794 -28.799157 -31.230513 -33.657210 -36.057462 -38.407658 -40.68

15、2702 -42.856404 -44.901901 -46.792104 -48.500165 -49.999950 -51.266511 -52.276556 -53.008891 -53.444842 -53.568639 -53.367760 -52.833222 -51.959822 -50.746310 -49.195504 -47.314339 -45.113841 -42.609040 -39.827853 -36.843216 -33.679083 -30.350869 -26.874788 -23.267776 -19.547405 -15.731802 -11.83955

16、5 -7.889627 -3.901261 0.106111 4.112966 8.099784 12.047140 15.935803 19.746829 23.461650 27.055239 30.461071 33.572280 36.259587 38.390725 39.851417 40.564743 40.505890 39.709940 38.271358 36.335020 34.079893 31.697536 29.368412 27.239317 25.405150 23.897652 22.682758 20.712315;x1=3.920000 4.315000

17、4.688978 5.040112 5.366690 5.667123 5.939946 6.183831 6.407565 6.656245 6.939957 7.262933 7.627623 8.034738 8.483268 8.970511 9.492073 10.041892 10.612251 11.193822 11.775737 12.345689 12.890081 13.394214 13.842522 14.218843 14.506733 14.689800 14.752070 14.678354 14.454625 14.068384 13.509012 12.76

18、8088 11.839684 10.720610 9.410609 7.912503 6.232279 4.379110 2.365319 0.206274 -2.079773 -4.471913 -6.946854 -9.479256 -12.042104 -14.607122 -17.145218 -19.626947 -22.022998 -24.304672 -26.444369 -28.424511 -30.262966 -31.953983 -33.489324 -34.861508 -36.063850 -37.090493 -37.936434 -38.597553 -39.0

19、70629 -39.353357 -39.444359 -39.343192 -39.050348 -38.567256 -37.896268 -37.040653 -36.004579 -34.769401 -33.220147 -31.245851 -28.787411 -25.848578 -22.498389 -18.864538 -15.118342 -11.453008 -8.057698 -5.090569 -2.654686 -0.781762 0.570733 1.505255 2.154694 2.647497 3.079986 3.920000;y1=5.799448 5

20、.511876 5.197450 4.857703 4.494289 4.108980 3.703652 3.280280 2.840231 2.411219 1.994237 1.578653 1.153648 0.708380 0.232122 -0.285610 -0.854923 -1.485412 -2.185991 -2.964711 -3.828560 -4.783237 -5.832928 -6.980083 -8.225211 -9.566690 -11.000625 -12.520742 -14.118339 -15.782286 -17.499088 -19.253010

21、 -21.026255 -22.799200 -24.550682 -26.258332 -27.898945 -29.448882 -30.884491 -32.182550 -33.320701 -34.277896 -35.034810 -35.574247 -35.881505 -35.944704 -35.755071 -35.307167 -34.599059 -33.632433 -32.412639 -30.948670 -29.253078 -27.347942 -25.298530 -23.125866 -20.840535 -18.453672 -15.976904 -13.422298 -10.802300 -8.129674 -5.417441 -2.678815 0.072862 2.824184 5.561746 8.272213 10.942378 13.559233 16.110028 18.567736 20.858131 22.874250 24.490421 2