机械设计大作业

1、机械设计齿轮设计程序姓名吴磊 班级:08机械二班 学号:2008301390034#include <stdio.h>#include <math.h>float min(float x,float y);float max(float x,float y);void main()int B1,B2,b,z1,z2;float P1,u,T1,Kt,FAId,CHlim1,CHlim2,S,n1,j,l,ZE,N1,N2,KHN1,KHN2,d1t,v,mt,h,p,KA,KV,KH1,KH2,KF1,KF2,YFa1,YFa2,YSa1,YSa2,CFE1,CFE2,

2、KFN1,KFN2,CH1,CH2,CH,CF1,CF2,a,d1,d2,m,w,K,bt,z1t,z2t,q;printf("请选择齿轮的精度等级、材料和处理方法n");printf("请输入小齿轮的齿数z1和齿数比u:n");scanf("%f%f",&z1t,&u);printf("下面进行齿面强度计算n");printf("请输入输入功率P1,小齿轮的转速n1,j,齿轮工作时间l:n");scanf("%f%f%f%f",&P1,&n1

3、,&j,&l);T1=(9550000*P1)/n1;N1=60*n1*j*l;N2=N1/u;printf("T1=%10.4e N1=%10.4e N2=%10.4e n",T1,N1,N2);printf("请输入大小齿轮的接触疲劳强度极限CHlim1,CHlim2和安全系数S:n");scanf("%f%f%f",&CHlim1,&CHlim2,&S);printf("请输入接触疲劳寿命系数KHN1,KHN2:n");scanf("%f%f",&a

4、mp;KHN1,&KHN2);CH1=KHN1*CHlim1/S;CH2=KHN2*CHlim2/S;CH=min(CH1,CH2);printf("CH1=%10.4fnCH2=%10.4fnCH=%10.4fn",CH1,CH2,CH);printf("n");printf("请输入载荷系数Kt,齿宽系数FAId,弹性影响系数ZE:n");scanf("%f%f%f",&Kt,&FAId,&ZE);q=pow(ZE/CH,2)*Kt*T1*(u+1)/(FAId*u);d1t=2

5、.32*pow(q,1.0/3.0);v=3.1415926*d1t*n1/60000;bt=FAId*d1t;mt=d1t/z1t;h=2.25*mt;p=bt/h;printf("d1t=%10.4f v=%10.4f mt=%10.4f p=%10.4fn",d1t,v,mt,p); printf("n");printf("根据v,P和精度等级查KV,KH1,KF1,KH2,KF2,KA:n");scanf("%f%f%f%f%f%f",&KV,&KH1,&KF1,&KH2,&

6、amp;KF2,&KA);K=KA*KV*KH1*KH2;d1=d1t*pow(K/Kt,1.0/3.0);m=d1/z1t;printf("d1=%10.4f m=%10.4fn",d1,m);printf("n");printf("请输入齿根弯曲强度计算所需的弯曲疲劳强度极限CFE1和CFE2,KFN1,KFN2,S:n");scanf("%f%f%f%f%f",&CFE1,&CFE2,&KFN1,&KFN2,&S);CF1=KFN1*CFE1/S;CF2=KFN

7、1*CFE2/S;K=KA*KV*KF1*KF2;printf("请输入齿形系数YFa1、YFa2和应力校正系数YSa1、YSa2n");scanf("%f%f%f%f",&YFa1,&YFa2,&YSa1,&YSa2);w=max(YFa1*YSa1/CF1,YFa2*YSa2/CF2);m=pow(2*Kt*T1*w/(FAId*z1t*z1t),1.0/3.0);printf("m=%10.4fn",m);printf("请根据上述计算值选取m:n");scanf("

8、%f",&m);z1t=d1/m;z2t=u*z1t;printf("z1t=%10.4f z2t=%10.4fn",z1t,z2t);printf("请根据z1t,z2t选择合适的z1,z2:n");scanf("%d%d",&z1,&z2);d1=z1*m;d2=z2*m;a=(d1+d2)/2;bt=FAId*d1;printf("bt=%fn",bt);printf("请选择合适的b值:n");scanf("%d",&b);B2=b;B1=B2+5;printf("z1=%d z2=%d d1=%5.2f d2=%5.2fnm=%5.2f a=%5.2f B1=%d B2=%dn",z1,z2,d1,d2,m,a,B1,B2);printf("n");float min(float x,float y)if(x>=y)return y;elsereturn x;float max(float x,float y)if(x>=y)return x;e