V带传动电算报告.docx
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V带传动电算报告
HarbinInstituteofTechnology
哈尔滨工业大学机械设计作业设计计算说明书
课程名称:
机械设计
设计题目:
V带传动设计
院系:
机电工程学院
班级:
0808103
设计者:
李宏达
学号:
1080810306
指导教师:
宋宝玉、敖宏瑞
设计时间:
2010.10.25
哈尔滨工业大学
一、程序框图
Y
图1V带设计程序框图
N
二、V带设计程序
#include
#include
#include
#definePAI3.14
intTYPE_TO_NUM(chartype);/*将输入的字符(不论大小写)转换为数字方便使用*/
floatSelect_Ki(floati);/*查表选择Ki的程序*/
floatSelect_KA(floatH,intGZJ,intYDJ);/*查表选择KA的程序*/
floatSelect_KL(floatLd,intTYPE);/*查表选择KL的程序*/
floatSelect_M(intTYPE);/*查表选择m的程序*/
floatSelect_dd1(intTYPE);/*查表选择小轮基准直径dd1的程序*/
floatSelect_dd2(intdd1,floati);/*查表选择大轮直径dd2的程序*/
floatCompute_P0(floatV,intTYPE,floatdd1);/*计算P0的程序*/
floatCompute_DIFP0(intTYPE,floatKi,intn1);/*计算DIFP0的程序*/
floatCompute_VMAX(intTYPE);/*计算VMAX的程序*/
floatCompute_KALF(floatALF1);/*计算KALF的程序*/
floatCompute_B(intTYPE,intz);/*计算带宽B的程序*/
float*Compute_LAK(floatdd1,floatdd2,intTYPE);/*计算Ld,a,KL的程序*/
main()
{
floatP,H,i,n1,KA,Ki,dd1,dd2,V,P0,DIFP0,Pd,VMAX,*LAK,m,Ld,KALF,a,KL,z,F0,ALF1,Q,B;
intYDJ,GZJ,TYPE,ANS;
chartype,ans;
printf("V带传动设计程序\n");
printf("设计者李宏达1080810306\n");
START:
printf("请输入原始参数:
\n");
printf("传递功率P(KW):
");
scanf("%f",&P);
printf("小带轮转速n1(r/min):
");
scanf("%f",&n1);
printf("传动比i:
");
scanf("%f",&i);
printf("每天工作时间H(h):
");
scanf("%f",&H);
printf("原动机类型(1或2):
");
scanf("%d",&YDJ);
printf("工作机载荷类型:
\n1,载荷平稳\n2,载荷变动较小\n3,载荷变动较大\n4,载荷变动很大\n");
scanf("%d",&GZJ);
DX:
printf("带型:
");
scanf("%c",&type);
TYPE=TYPE_TO_NUM(type);
KA=Select_KA(H,GZJ,YDJ);
Pd=KA*P;
VMAX=Compute_VMAX(TYPE);
DD1:
dd1=Select_dd1(TYPE);
V=PAI*dd1*n1/60000;
while(V>VMAX)
{
printf("所选小轮基准直径过小!
请重新选择!
\n");
dd1=Select_dd1(TYPE);
V=PAI*dd1*n1/60000;
}
dd2=Select_dd2(dd1,i);
P0=Compute_P0(V,TYPE,dd1);
Ki=Select_Ki(i);
DIFP0=Compute_DIFP0(TYPE,Ki,n1);
LAK=Compute_LAK(dd1,dd2,TYPE);
Ld=LAK[0];
a=LAK[1];
KL=LAK[2];
ALF1=180-57.3*(dd2-dd1)/a;
KALF=Compute_KALF(ALF1);
z=ceil(Pd/(KALF*KL*(P0+DIFP0)));
if(z>=10)
gotoDX;
m=Select_M(TYPE);
F0=500*Pd*(2.5-KALF)/(z*V*KALF)+m*V*V;
Q=2*z*F0*sin(ALF1*PAI/360);
B=Compute_B(TYPE,z);
printf("计算结果\n");
printf("小轮直径:
%fmm\n大轮直径:
%fmm\n中心距:
%fmm\n带长:
%fmm\n带宽:
%fmm\n带的根数:
%f\n初拉力:
%fN\n轴压力:
%fN\n",dd1,dd2,a,Ld,B,z,F0,Q);
X:
printf("计算下一组带轮直径按'Y',重新开始按'S',结束按'N':
");
scanf("%c",&ans);
ANS=TYPE_TO_NUM(ans);
if(ANS==6)
gotoDD1;
elseif(ANS==7)
gotoSTART;
elseif(ANS==8)
printf("程序结束");
else
{
printf("输入错误,请重新输入");
gotoX;
}
}
floatSelect_KA(floatH,intGZJ,intYDJ)
{
floatka1[4][3]={{1.0,1.1,1.2},{1.1,1.2,1.3},{1.2,1.3,1.4},{1.3,1.4,1.5}};
floatka2[4][3]={{1.1,1.2,1.3},{1.2,1.3,1.4},{1.4,1.5,1.6},{1.5,1.6,1.8}};
floatKA;
if(YDJ==1)
{
if(H<10)
KA=ka1[GZJ-1][0];
elseif(H>16)
KA=ka1[GZJ-1][2];
else
KA=ka1[GZJ-1][1];
}
if(YDJ==2)
{
if(H<10)
KA=ka2[GZJ-1][0];
elseif(H>16)
KA=ka2[GZJ-1][2];
else
KA=ka2[GZJ-1][1];
}
returnKA;
}
floatSelect_Ki(floati)
{
floatm;
floatKi[10]={1.0000,1.0136,1.0276,1.0419,1.0567,1.0719,1.0875,1.1036,1.1202,1.1373};
floatI[10]={1.00,1.02,1.05,1.09,1.13,1.19,1.25,1.35,1.52,2.00};
intj=9;
for(j=9;j>=0;j--)
{
m=i-I[j];
if(m>=0)
break;
}
returnKi[j];
}
intTYPE_TO_NUM(chartype)
{
intx;
if(type<91)
type+=32;
switch(type)
{
case'z':
x=0;
break;
case'a':
x=1;
break;
case'b':
x=2;
break;
case'c':
x=3;
break;
case'd':
x=4;
break;
case'e':
x=5;
break;
case'y':
x=6;
break;
case's':
x=7;
break;
case'n':
x=8;
break;
}
returnx;
}
floatCompute_P0(floatV,intTYPE,floatdd1)
{
floatP0;
floatK1[6]={0.246,0.449,0.794,1.48,3.15,4.57};
floatK2[6]={7.44,19.02,50.6,143.2,507.3,951.5};
floatK3[6]={0.441e-4,0.765e-4,1.31e-4,2.34e-4,4.77e-4,7.06e-4};
P0=(K1[TYPE]*pow(V,-0.09)-K2[TYPE]/dd1-K3[TYPE]*V*V)*V;
returnP0;
}
floatCompute_DIFP0(intTYPE,floatKi,intn1)
{
floatKb,DIFP0;
floatKB[6]={0.2925e-3,0.7725e-3,1.9875e-3,5.625e-3,19.95e-3,37.35e-3};
Kb=KB[TYPE];
DIFP0=Kb*n1*(1-1/Ki);
returnDIFP0;
}
floatSelect_dd1(intTYPE)
{
inti;
floatdd1;
floatDD1[6][4]={{50,63,71,80},{75,90,100,125},{125,140,160,180},
{200,250,315,400},{355,400,450,500},{500,560,630,710}};
printf("该带型推荐的小带轮基准直径有(mm):
\n");
for(i=0;i<4;i++)
{
printf("%.2f",DD1[TYPE][i]);
}
printf("\n请选择小带轮直径dd1:
");
scanf("%f",&dd1);
returndd1;
}
floatSelect_dd2(intdd1,floati)
{
floatDD2[]={50,56,63,71,80,90,100,112,125,140,150,160,180,200,224,
250,280,315,355,400,425,450,500,560,600,630,710,800};
floatdd2,temp,t;
intj=0;
temp=i*dd1;
for(j=0;j<28;j++)
{
t=temp-DD2[j];
if(t<=0)
break;
}
if((DD2[j]-temp)<(temp-DD2[j-1]))
dd2=DD2[j];
else
dd2=DD2[j-1];
returndd2;
}
float*Compute_LAK(floatdd1,floatdd2,intTYPE)
{
intj=0;
floata1,a2,a0,Ld0,temp,KALF,Ld,a,KL;
floatLAK[3];
floatkl[23][6]={{400,0.87},{450,0.89},{500,0.91},
{560,0.94},{630,0.96,0.81},{710,0.99,0.83},{800,1.00,0.85,0.82},{900,1.03,0.87,0.84,0.83},{1000,1.06,0.89,0.86,0.86,0.83},
{1120,1.08,0.91,0.88,0.88,0.86},{1250,1.10,0.93,0.90,0.91,0.89},{1400,1.14,0.96,0.92,0.93,0.91},{1600,1.16,0.99,0.95,0.95,0.93},
{1800,1.18,1.01,0.98,0.97,0.96},{2000,0,1.03,1.00,0.99,0.98},{2240,0,1.06,1.03,1.02,1.00},{2500,0,1.09,1.05,1.04,1.03},
{2800,0,1.11,1.07,1.07,1.06},{3150,0,1.13,1.09,1.09,1.08},{3550,0,1.17,1.13,1.12,1.11},{4000,0,1.19,1.15,1.15,1.14},{4500,0,0,1.18,1.18,1.17},{5000,0,0,0,1.21,1.20}};
a1=0.7*(dd1+dd2);
a2=2*(dd1+dd2);
printf("请输入初估中心距a0(范围为%.2fmm~%.2fmm):
",a1,a2);
scanf("%f",&a0);
Ld0=2*a0+(dd1+dd2)*PAI/2+(dd2-dd1)*(dd2-dd1)/a0/4;
for(j=0;j<23;j++)
{
temp=Ld0-kl[j][0];
if(temp<=0)
break;
}
if((Ld0-kl[j-1][0])>(kl[j][0]-Ld0))
{Ld=kl[j][0];
KL=kl[j][TYPE+1];
}
else
{Ld=kl[j-1][0];
KL=kl[j-1][TYPE+1];
}
a=a0+(Ld-Ld0)/2;
LAK[0]=Ld;
LAK[1]=a;
LAK[2]=KL;
returnLAK;
}
floatCompute_VMAX(intTYPE)
{
floatVMAX;
switch(TYPE)
{
case0:
case1:
case2:
case3:
VMAX=25;
break;
case4:
case5:
VMAX=30;
break;
}
returnVMAX;
}
floatSelect_M(intTYPE)
{
floatm;
floatM[6]={0.06,0.1,0.17,0.3,0.6,0.9};
m=M[TYPE];
returnm;
}
floatCompute_B(intTYPE,intz)
{
floatf[6]={8,10,12.5,17,23,29};
floate[6]={12,15,19,25.5,37,44.5};
floatB;
B=(z-1)*e[TYPE]+2*f[TYPE];
returnB;
}
floatCompute_KALF(floatALF1)
{
floatkalf[2][14]={220,210,200,190,180,170,160,150,140,130,120,110,100,90,1.20,1.15,1.10,1.05,1.00,0.98,0.95,0.92,
0.89,0.86,0.82,0.78,0.73,0.68},KALF;
inti;
for(i=0;i<14;i++)
{
if(ALF1kalf[0][i+1])
{
KALF=kalf[1][i]+(kalf[1][i]-kalf[1][i+1])*(ALF1-kalf[0][i])/10;
break;
}
}
returnKALF;
}
三、程序运行截图