凸轮机构大作业

机械原理大作业凸轮机构设计（题号：4-A）班级学号姓名成绩同组者2016年5月14日1/23目录（一）题目及原始数据 （二）推杆运动规律及凸轮廓线方程 （三）程序框图 （四）计算程序 （五）程序计算结果及分析 （六）凸轮机构图 （七）心得体会 （八）参考书 一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（1）推程运动规律为五次多项式运动规律，回程运动规律为余弦加速度运动规律；（2）打印出原始数据；（3）打印出理论轮廓和实际轮廓的坐标值；（4）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;（5）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；（6）打印最后所确定的凸轮的基圆半径。2/23表一偏置直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[pamin][al][a2]4-A155102830°700.3Rr计算点数：N=90q1=60; 近休止角61q2=180; 推程运动角62q3=90; 远休止角63q4=90; 回程运动角64二推杆运动规律及凸轮廓线方程推杆运动规律：(1)近休阶段：0。&6<60os=0;ds/d6=0;d2sid2=0;(2)推程阶段：60o<6<180o五次多项式运动规律：Q1=Q-60;3/23s=10*h*Q1*Q1*Q1/(q2*q2*q2)-15*h*Q1*Q1*Q1*Q1/(q2*q2*q2*q2)+6*h*Q1*Q1*Q1*Q1*Q1/(q2*q2*q2*q2*q2);ds/d6=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);d2s/而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)远休阶段：180oW6<270os=h=24;ds/d6=0;d2sid52=0;(4)回程阶段：270W6<360Q2=Q-270;s=h*(1+cos(2*Q2/QQ))/2;ds/d6=-h*sin(2*Q2/QQ);d2s/d52=-2*h*cos(2*Q2/QQ);凸轮廓线方程：(1)理论廓线方程：4/23s0=sqrt(r02-e2)x=(s0+s)sin6+ecos6y=(s0+s)cos6-esin6⑵实际廓线方程先求x,y的一、二阶导数dx=(ds/d6-e)*sin(6)+(s0+s)*cos(6);dy=(ds/d6-e)*cos(6)-(s0+s)*sin(6);dxx=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/d6*sin(6)-(s0+s)*cos(6);x1=x-rr*coso;y1=y-rr*sino;再求sine,cosBsin0=x,/sqrt((x，)2+(y，)2)cos0=-y'/sqrt((x,)2+(y’)2)最后求实际廓线方程x1=x-rr*cos0;y1=y-rr*sin0;程序框图5/23

开始读入：r0,Ar0,rt,h或（夕）,e或（/AB、1OA）3,3,3,"[a],[a],[p ],N计算：s0I=1计算：s,x,y,ds/d8,dx/d8,dy/d8,x',丫0=p<0?1P|-rt丫0=p<0?1P|-rt-[pamin]是回|a|>[4]选出&2max及相应的凸轮转选出4max及相应的凸轮转丫0=计算：a计算：p计算p计算pa选出Ipaminl及相应的凸轮转角I=I+1I<I<N?rr0,打印：X,y,X',y',Pamm，3赢，&，3"，a2max，32max，结束6/23四计算程序程序#include<stdio.h>#include<math.h>voidmain(){doubler0,or,rr,h,e,q1,q2,q3,q4,a,a11,a22,Q,pi,pa,paa,QQ,A1,A2,B1,B2,C1,C2;/*定义变量*/doublexz[90],yz[90],sz[90],x1z[90],y1z[90],Q1,Q2;doubles0,s,x,y,y1,x1,dx,dxx,dy,dyy,ds,dss,sino,coso,p;intN,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=3.141592653;pa=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+or;s0=sqrt(r0*r0-e*e);for(i=1,j=0;i<=N;i++,j++){7/23if(Q<60){/*近休阶段*/if(Q<60){s=0;ds=0;dss=0;a=atan(e/sqrt(r0*r0-e*e)); /*求压力角*/if(a>a11/QQ){break;)else{if(a>A1)A1=a;A2=Q;))elseif(Q>=60&&Q<180){ /*五次多项式运动*/Q1=Q-60;s=10*h*Q1*Q1*Q1/(q2*q2*q2)-15*h*Q1*Q1*Q1*Q1/(q2*q2*q2*q2)+6*h*Q1*Q1*Q1*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);8/23dss=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(ds-e)/(sqrt(r0*r0-e*e)+s));if(a>a11/QQ){break;)/*远休阶段/*远休阶段*/if(a>A1)A1=a;A2=Q;))elseif(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;)else{if(a>B1)B1=a;9/23B2=Q;)elseif(Q>=270&&Q<360){ /*余弦加速度运动*/Q2=Q-270;s=h*(1+cos(2*Q2/QQ))/2;ds=-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;)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);10/23dxx=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*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;sz[j]=s;yz[j]=y;xz[j]=x;x1z[j]=x1;y1z[j]=y1;p=pow(dx*dx+dy*dy,1.5)/(dx*dyy-dy*dxx); /*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;11/23Q=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",sz[j]);printf("x=%f,y=%f;",xz[j],yz[j]);printf("x1=%f,y1=%f\n",x1z[j],y1z[j]);}printf("r0=%f\n",r0);printf("推程最大压力角(弧度)=%f,相应凸轮转角=%f\n",A1,A2-4);printf("回程最大压力角(弧度)=%f,相应凸轮转角=%f\n",B1,B2-4);printf("最小曲率半径=%f,相应凸轮转角=%f\n",C1,C2-4);}12/232.matalab绘图x=[5.0000006.6252418.2182059.77113011.27645112.72683514.11521515.43482716.679242 17.842397 18.918626 19.902685 20.789781 21.57559022.25628622.828551 23.298459 23.706615 24.097554 24.507799 24.96374525.48031826.060379 26.694836 27.363383 28.035800 28.673715 29.23272929.66480129.920768 29.952907 29.717406 29.176650 28.301221 27.07150725.47886523.526246 21.228245 18.610551 15.708757 12.566564 9.2333765.7613492.201948-1.397906-5.000000-8.578422-12.115052-15.592657-18.994297-22.303399-25.503841-28.580030-31.516981-34.300384-36.916679-39.353120-41.597836-43.639892-45.469338-47.077263-48.455831-49.598328-50.499187-51.154019-51.559634-51.714055-51.616530-51.233453-50.364513-48.991675-47.144744-44.866118-42.209132-39.235944-36.015085-32.618764-29.120045-25.590019-22.095099-18.694544-15.438322-12.365412-9.502600-6.863834-4.450154-2.250205-0.2413031.6089973.3408955.000000]；y=[23.47338923.06742722.54908221.92088121.18588320.34767019.41032518.37841517.25696716.05144514.76772113.41205111.99103910.5116088.9809657.4065685.8004084.1854212.5724590.957412-0.675351-2.349452-4.092999-5.935252-7.903549-10.020601-12.302228-14.755601-17.378031-20.156343-23.066822-26.075733-29.140389-32.210697-35.231149-38.143149-40.887607-43.407693-45.651627-47.575413-49.145373-50.340385-51.153688-51.594160-51.686950-51.473389-50.999220-50.276588-49.309014-48.101211-46.659063-44.989598-43.100947-41.002313-38.703920-36.216966-33.553566-30.726696-27.750129-24.638366-21.406568-18.070478-14.646352-11.150869-7.601061-4.014222-0.4078253.2005596.79215910.32106513.71568716.90757319.83519722.44627024.69965826.56682228.03272413/2329.09616429.76952030.07792830.05790829.75553529.22419528.52206427.70939126.84572025.98717425.18391224.47787223.90090723.473389]；x1=[2.9166673.8647244.7939535.6998266.5779307.4239878.2338759.0036499.72955810.40806511.03586511.60990012.12737212.58576112.98283413.316655 13.637197 13.989954 14.385216 14.841722 15.36972415.96191716.595549 17.241474 17.871626 18.461055 18.986391 19.42387919.74858719.934923 19.958013 19.795395 19.428612 18.844393 18.03524416.99936915.739987 14.264216 12.581802 10.703984 8.6426806.4099754.0176121.476005-1.207747-4.033175-6.919656-9.772424-12.577583-15.321465-17.990702-20.572290-23.053652-25.422699-27.667890-29.778285-31.743603-33.554270-35.201463-36.677159-37.974167-39.086169-40.007747-40.734411-41.262621-41.589804-41.714366-41.635699-41.376364-40.850805-40.008452-38.855049-37.403903-35.676949-33.704972-31.526827-29.187728-26.736824-24.224319-21.698402-19.202199-16.770908-14.429195-12.188866-10.046784-7.982989-5.959305-3.919615-1.7954630.4759892.916667]；y1=[13.69281013.45599913.15363112.78718112.35843211.86947411.32268910.72074210.0665649.3633438.6145047.8236976.9947736.1317715.2388964.3204983.2197081.8218430.191177-1.605194-3.495769-5.415401-7.320538-9.196225-11.051016-12.905780-14.783306-16.701480-18.669812-20.688233-22.747295-24.829259-26.909752-28.959788-30.947932-32.842380-34.612723-36.231183-37.673270-38.917916-39.947376-40.747241-41.306893-41.620545-41.688758-41.520236-41.137755-40.554855-39.774375-38.800119-37.636833-36.290183-34.766732-33.073900-31.219936-29.213872-27.065480-24.785228-22.384225-19.874168-17.267286-14.576280-11.814260-8.994681-6.131282-3.238012-0.3289662.5816835.1075827.2405829.32231811.31463413.17822014.87457416.36849017.63062918.63974919.38430219.86321620.08579920.07080319.84472219.43947214/2318.88962018.22947317.49055716.70048615.88498615.07523114.32007613.692810］；plot(x1,y1,x,y,'r')：五程序计算结果及分析基圆半径 r0=24.000000推程最大压力角（弧度）=0.513512,相应凸轮转角=172.000000回程最大压力角（弧度）=0.766377,相应凸轮转角=352.000000最小曲率半径=14.000000,相应凸轮转角=340.000000数据第1组数据s=0.000000 x=5.000000,y=23.473389;x1=2.916667,y1=13.692810第2组数据s=0.000000 x=6.625241,y=23.067427;x1=3.864724,y1=13.455999第3组数据s=0.000000 x=8.218205,y=22.549082;x1=4.793953,y1=13.153631第4组数据s=0.000000 x=9.771130,y=21.920881;x1=5.699826,y1=12.787181第18.88962018.22947317.49055716.70048615.88498615.07523114.32007613.692810］；plot(x1,y1,x,y,'r')：五程序计算结果及分析基圆半径 r0=24.000000推程最大压力角（弧度）=0.513512,相应凸轮转角=172.000000回程最大压力角（弧度）=0.766377,相应凸轮转角=352.000000最小曲率半径=14.000000,相应凸轮转角=340.000000数据第1组数据s=0.000000 x=5.000000,y=23.473389;x1=2.916667,y1=13.692810第2组数据s=0.000000 x=6.625241,y=23.067427;x1=3.864724,y1=13.455999第3组数据s=0.000000 x=8.218205,y=22.549082;x1=4.793953,y1=13.153631第4组数据s=0.000000 x=9.771130,y=21.920881;x1=5.699826,y1=12.787181第5组数据s=0.000000 x=11.276451,y=21.185883;x1=6.577930,y1=12.358432第6组数据s=0.000000 x=12.726835,y=20.347670;x1=7.423987,y1=11.869474第7组数据s=0.000000 x=14.115215,y=19.410325;x1=8.233875,y1=11.322689第8组数据s=0.000000 x=15.434827,y=18.378415;x1=9.003649,y1=10.720742第9组数据s=0.000000x=16.679242,y=17.256967;x1=9.729558,y1=10.066564第10组数据s=0.000000x=17.842397,y=16.051445;x1=10.408065,y1=9.363343第11组数据s=0.000000x=18.918626,y=14.767721;x1=11.035865,y1=8.614504第12绢数据s=0.000000x=19.902685,y=13.412051;x1=11.609900,y1=7.823697第13组数据s=0.000000x=20.789781,y=11.991039;x1=12.127372,y1=6.994773第14组数据s=0.000000x=21.575590,y=10.511608;x1=12.585761,y1=6.131771第15组数据s=0.000000x=22.256286,y=8.980965;x1=12.982834,y1=5.23889615/23第第16组数据第17组数据第18组数据第19组数据第20组数据第21组数据第22组数据第23组数据第24组数据第25组数据第26组数据第27组数据第28组数据第29组数据x=29.664801,y第30组数据x=29.920768,y第31组数据x=29.952907,y第32组数据x=29.717406,y第33组数据x=29.176650,y第34组数据x=28.301221,y第35组数据x=27.071507,y第36组数据x=25.478865,ys=0.000000 x=22.828551,y=7.406568;x1=13.316655,y1=4.320498s=0.009859 x=23.298459,y=5.800408;x1=13.637197,y1=3.219708s=0.074888 x=23.706615,y=4.185421;x1=13.989954,y1=1.821843s=0.239680 x=24.097554,y=2.572459;x1=14.385216,y1=0.191177s=0.538042 x=24.507799,y=0.957412;x1=14.841722,y1=-1.605194s=0.993827 x=24.963745,y=-0.675351;x1=15.369724,y1=-3.495769s=1.621760 x=25.480318,y=-2.349452;x1=15.961917,y1=-5.415401s=2.428271 x=26.060379,y=-4.092999;x1=16.595549,y1=-7.320538s=3.412322 x=26.694836,y=-5.935252;x1=17.241474,y1=-9.196225s=4.566240 x=27.363383,y=-7.903549;x1=17.871626,y1=-11.051016s=5.876543 x=28.035800,y=-10.020601;x1=18.461055,y1=-12.905780s=7.324772 x=28.673715,y=-12.302228;x1=18.986391,y1=-14.783306s=8.888320 x=29.232729,y=-14.755601;x1=19.423879,y1=-16.701480s=10.541260-17.378031;x1=19.748587,y1=-18.669812s=12.255178-20.156343;x1=19.934923,y1=-20.688233s=14.000000-23.066822;x1=19.958013,y1=-22.747295s=15.744822-26.075733;x1=19.795395,y1=-24.829259s=17.458740-29.140389;x1=19.428612,y1=-26.909752s=19.111680-32.210697;x1=18.844393,y1=-28.959788s=20.675228-35.231149;x1=18.035244,y1=-30.947932s=22.123457-38.143149;x1=16.999369,y1=-32.84238016/23

第37第37组数据s=23.433760x=23.526246,y=-40.887607;x1=15.739987,y1=-34.612723第38组数据s=24.587678x=21.228245,y=-43.407693;x1=14.264216,y1=-36.231183第39组数据s=25.571729x=18.610551,y=-45.651627;x1=12.581802,y1=-37.673270第40组数据 s=26.378240x=15.708757,y=-47.575413;x1=10.703984,y1=-38.917916第41组数据s=27.006173 x=12.566564,y=-49.145373;x1=8.642680,y1=-39.947376第42第42组数据第43组数据 s=27.760320 x=5.761349,y=-51.153688;x1=4.017612,y1=-41.306893第44组数据 s=27.925112 x=2.201948,y=-51.594160;x1=1.476005,y1=-41.620545第45组数据 s=27.990141x=-1.397906,y=-51.686950;x1=-1.207747,y1=-41.688758第46组数据 s=28.000000x=-5.000000,y=-51.473389;x1=-4.033175,y1=-41.520236第47绢数据 s=28.000000x=-8.578422,y=-50.999220;x1=-6.919656,y1=-41.137755第48组数据 s=28.000000x=-12.115052,y=-50.276588;x1=-9.772424,y1=-40.554855第49绢数据 s=28.000000x=-15.592657,y=-49.309014;x1=-12.577583,y1=-39.774375第50组数据 s=28.000000x=-18.994297,y=-48.101211;x1=-15.321465,y1=-38.800119第51组数据 s=28.000000x=-22.303399,y=-46.659063;x1=-17.990702,y1=-37.636833第52组数据 s=28.000000x=-25.503841,y=-44.989598;x1=-20.572290,y1=-36.29018317/23第53组数据

s=28.000000x=-28.580030,y=-43.100947;x1=-23.053652,y1=-34.766732第54组数据 s=28.000000x=-31.516981,y=-41.002313;x1=-25.422699,y1=-33.073900第55组数据 s=28.000000x=-34.300384,y=-38.703920;x1=-27.667890,y1=-31.219936第56组数据 s=28.000000x=-36.916679,y=-36.216966;x1=-29.778285,y1=-29.213872第57组数据 s=28.000000x=-39.353120,y=-33.553566;x1=-31.743603,y1=-27.065480第58组数据 s=28.000000x=-41.597836,y=-30.726696;x1=-33.554270,y1=-24.785228第59组数据 s=28.000000x=-43.639892,y=-27.750129;x1=-35.201463,y1=-22.384225第60组数据 s=28.000000x=-45.469338,y=-24.638366;x1=-36.677159,y1=-19.874168第61绢数据 s=28.000000x=-47.077263,y=-21.406568;x1=-37.974167,y1=-17.267286第62组数据 s=28.000000x=-48.455831,y=-18.070478;x1=-39.086169,y1=-14.576280第63绢数据 s=28.000000x=-49.598328,y=-14.646352;x1=-40.007747,y1=-11.814260第64组数据 s=28.000000x=-50.499187,y=-11.150869;x1=-40.734411,y1=-8.994681第65组数据 s=28.000000x=-51.154019,y=-7.601061;x1=-41.262621,y1=-6.131282第66组数据 s=28.000000x=-51.559634,y=-4.014222;x1=-41.589804,y1=-3.23801218/23第67组数据

s=28.000000x=-51.714055,y=-0.407825;x1=-41.714366,y1=-0.328966第68组数据s=28.000000 x=-51.616530,y=3.200559;x1=-41.635699,y1=2.581683第69组数据s=27.965897x=-51.233453,y=6.792159;x1=-41.376364,y1=5.107582第70组数据s=27.694066第69组数据s=27.965897x=-51.233453,y=6.792159;x1=-41.376364,y1=5.107582第70组数据s=27.694066x=-50.364513,y=10.321065;x1=-40.850805,y1=7.240582第71组数据s=27.155697x=-48.991675,y=13.715687;x1=-40.008452,y1=9.322318第72第72组数据s=26.361266x=-47.144744,y=16.907573;x1=-38.855049,y1=11.314634第73组数据 s=25.326238x=-44.866118,y=19.835197;x1=-37.403903,y1=13.178220第74组数据 s=24.070757x=-42.209132,y=22.446270;x1=-35.676949,y1=14.874574第75组数据s=22.619261x=-39.235944,y=24.699658;x1=-33.704972,y1=16.368490第76组数据 s=21.000000x=-36.015085,y=26.566822;x1=-31.526827,y1=17.630629第77组数据 s=19.244492x=-32.618764,y=28.032724;x1=-29.187728,y1=18.639749第78组数据 s=17.386907x=-29.120045,y=29.096164;x1=-26.736824,y1=19.384302第79组数据 s=15.463398x=-25.590019,y=29.769520;x1=-24.224319,y1=19.863216第80组数据 s=13.511407x=-22.095099,y=30.077928;x1=-21.698402,y1=20.085799第81组数据 s=11.568926x=-18.694544,y=30.057908;x1=-19.202199,y1=20.070803第82第82组数据第83组数据s=7.862804 x=-12.365412,y=29.224195;x1=-14.429195,y1=19.439472第84第84组数据19/23第85组数据s=4.632172 x=-6.863834,y=27.709391;x1=-10.046784,y1=18.229473第86组数据s=3.275378x=-4.450154,y=26.845720;x1=-7.982989,y1=17.490557第87组数据s=2.127327x=-2.250205,y=25.987174;x1=-5.959305,y1=16.700486第88组数据s=1.210364x=-0.241303,y=25.183912;x1=-3.919615,y1=15.884986第89组数据s=0.542336x=1.608997,y=24.477872;x1=-1.795463,y1=15.075231第90组数据s=0.136247x=3.340895,y=23.900907;x1=0.475989,y1=14.320076r0=24.000000推程最大压力角（弧度）=0.513512,相应凸轮转角=172.000000回程最大压力角（弧度）=0.766377,相应凸轮转角=352.000000最小曲率半径=14.000000,相应凸轮转角=340.000000运行结果截图:20/231第1组数据s=0.000000x=5.000000,-23.473389;xl=2.916667,yl=13.692810第2组数据s=0.000000x=6.625241,y=23.067427;xl=3.864724,yl=13.455999第3组数据s=0.000000x=8.218205,y=22.549082;xl=4.793953,yl=13.153631第4组数据s=0.000000x=9.771130,y=2L920881:xl=5.699826,yl=12.787181第5组数据s=0.000000x=ll.276451,y=21.185883;xl=6.577930,yl=12.358432第6组数据s=0.000000x=12.726835,y=20.347670;xl=7.423987,yl=ll.869474第7组数据s=0.000000x=14.115215,y=19.410325;xl=8.233875,yl=ll.322689第8组数据s=0.000000x=15.434827,y=18.378415;xl=9.003649,yl=10.720742第9组数据s=0.000000x=16.679242,y=17.256967;xl=9.729558,yl=10.066564第10组数据s=0.000000x=17.842397,y=16.051445;xl=10.408065,yl=9.363343第11组数据s=0.000000x=18.918626,y=14.767721;xl=ll.035865,yl=8.614504第12组数据s=0.000000x=19.902685,y=13.412051;xl=ll.609900,yl=7.823697第13组数据s=0.000000x=20.789781,y=ll.991039;xl=12.127372,yl=6.994773第14组数据s=0.000000x=21.575590,y=10.511608;xl=12.585761,yl=6.131771第15组数据s=0.000000x=22.256286,y=8.980965;xl=12.982834,yl=5.238896第16组数据s=0.000000x=22.828551,y=7.406568;xl=13.316655,yl=4.320498第17组数据s=0.009859x=23.298459,y=5.800408;xl=13.637197,yl=3.219708第18组数据s=0.074888x=23.706615,y=4.185421;xl=13.989954,yl=l.821843第19组数据s=0.239680x=24.097554,y=2.572459;xl=14.385216,yl=O.191177第20组数据s=0.538042x=24.507799,y=0.957412;x>14,841722,yl=-l.605194第21组数据s=0.993827x=24.963745,y=-0.675351;xl=15.369724,yl=-3.495769第22组数据s=l.621760x=25.480318,y=-2.349452;xl=15.96