required c++ code for pin bushed flexible coupling

Replies

• 

  yadavundertaker mohit

  i finally completed the programming..
  
  
  
  
  #include
  #include
  #include
  #include
  float arr[20];
  float *am(float d1,int d,float T,float pb,float n,float ta)
  {
  int d2,t1,t2,d3,e;
  float a,d0,q,D1,k,F,l,ti,D2,D3,tp,z,M,c,qp,qb,w,t,l1;
  
  
  /* Enlarged dia of pin */
  
  d2=d1+2*3;
  arr[0]=d2;
  
  t1=2;
  t2=6;
  d3=d2+2*t1+2*t2;
  arr[1]=d3;
  
  
  /* STEP 3*/
  D1=1.75*d;
  D1 = abs(D1)+1;
  
  
  /* check suitability of hub*/
  
  k=d/D1;
  k=pow(k,4);
  ti=(16*T)/(3.14*D1*D1*D1);
  ti=ti/(1-k);
  
  if(ti printf("\n\n\t");
  else
  D1=2*d;
  
  arr[2]=D1;
  
  /* PIN CIRCLE DIA*/
  D2=3*d;
  arr[3]=D2;
  
  /* FORCE PER PIN*/
  
  F=2*T/(D2*n);
  arr[4]=F;
  
  /* STEP 4*/
  
  l=F/(pb*d3);
  l=abs(l)+1;
  arr[5]=l;
  
  
  /* SHEAR STRESS IN PIN*/
  
  tp=(4*F)/(3.14*d1*d1);
  arr[6]=tp;
  
  /* BENDING MOMENT
  */
  e=4;
  M=F*((l/2)+e);
  arr[7]=M;
  
  
  z=(3.14*d1*d1*d1)/32;
  
  arr[8]=z;
  qb=M/z;
  arr[9]=qb;
  /* PRINCIPAL STRESS IN PIN*/
  
  c=(qb*qb)+4*(tp*tp);
  qp=.5*(qb+sqrt(c));
  
  
  /* KEY DIMENSIONS*/
  
  w=d/4;
  w=abs(w)+1;
  t=d/6;
  t=abs(t)+1;
  l1=1.5*d;
  l1=abs(l1)+1;
  printf("\n\n\t principle stress in pin =\t%fN/mm2",qp);
  arr[10]=qp;
  printf("\n\n\t n=%f",n);
  printf("\n\n\t d1=\%fmm",d1);
  printf("\n\n\t D1=\%fmm",D1);
  printf("\n\n\t ti=\t%fN/mm2",ti);
  printf("\n\n\t Hub is safe");
  printf("\n\n\t d2=%dmm",d2);
  printf("\n\n\t d3=\t%dmm",d3);
  printf("\n\n\t D2=\t%f",D2);
  printf("\n\n\t Force per pin =\%fN",F);
  printf("\n\n\t l=\%fmm",l);
  printf("\n\n\t shear stress in pin =\t%fN/mm2",tp);
  printf("\n\n\t bending moment =\t%fN-mm",M);
  printf("\n\n\t section modulus =\t%fmm3",z);
  printf("\n\n\t STRESS =\t%fN/mm2",qb);
  printf("\n\n\t width of key =%fmm",w);
  printf("\n\n\t thickness of key =\t%fmm",t);
  printf("\n\n\t length of key =\t%fmm",l1);
  printf("\n\n\n");
  return arr;
  
  }
  main()
  {
  clrscr();
  float farr[20];
  int d,p,N,b,d2,t1,t2,d3,e,i;
  float T,n,d1,a,d0,pb,ta,q,D1,k,F,l,ti,D2,D3,tp,z,M,c,qp,qb;
  printf("\n\n\t\t DESIGN OF PIN BUSHED FLEXIBLE COUPLING");
  printf("\n\n\n\t enter the dia of pipe to be joined in mm=\t");
  scanf("%d",&d);
  printf("\n\n\t enter the power to be transmitted in kw=\t");
  scanf("%d",&p);
  printf("\n\n\t enter the rpm of the shaft =\t");
  scanf("%d",&N);
  printf("\n\n\t enter the bearing pressure in N/mm2=\t");
  scanf("%f",&pb);
  printf("\n\n\t enter the allowable shear stress in shaft,keys ,flange =\t");
  scanf("%f",&ta);
  printf("\n\n\t enter the allowable stress in pin =\t");
  scanf("%f",&q);
  
  /* To find the torque*/
  T=(p*60000)/(2*3.14*N);
  T=(T*1000);
  printf("\n\n\t torque produced =\t%fN-mm",T);
  
  /* Suitability of shaft dia*/
  a=(16*T)/(3.14*ta);
  d0=pow(a,.33333);
  
  d0=fabs(d0)+1;
  if (d0 {
  d0=d;
  printf("\n\n\t d0=%fmm",d0);
  }
  else
  printf("\n\n\t Dia is not secure");
  
  /* No. of pins */
  n=(0.02*d)+5;
  if(abs(n)-n==0)
  i=abs(n);
  else
  {
  n=abs(n)+1;
  i=abs(n)+1;
  }
  if(i%2==0)
  n=n;
  else
  n=n+1;
  printf("\n\n\t no. of pins =\t%f",n);
  
  /* Pin dia*/
  d1=(0.5*d)/sqrt(n);
  b=abs(d1)+1;
  d1=abs(d1)+1;
  if(b<10)
  printf("\n\n\t The value of d1 is =\t%fmm",d1);
  else {
  if(b%2==0)
  printf("\n\n\t The value of d1 is =\t%fmm",d1);
  else
  {
  d1=d1+1;
  printf("\n\n\t The value of d1 is =\t%dmm",d1);
  
  }
  }
  qp=0;
  
  //farr[20] = am(d1,d,T,pb,n,ta);
  memcpy(farr,am(d1,d,T,pb,n,ta),sizeof(am(d1,d,T,pb,n,ta)));
  if (arr[10] > q)
  {
  for(int i=0;arr[10]>q;i++)
  {
  printf("\n\n*********************************************************");
  printf("\n\n*********************************************************");
  printf("\n\n\t ITERATION NO.%d",i+1);
  d1=d1+2;
  memcpy(farr,am(d1,d,T,pb,n,ta),sizeof(am(d1,d,T,pb,n,ta)));
  
  }
  }
  getch();
  return 0;
  }
  
  
  
  you can enter the values and it will give you the dimensions of the pin bushed coupling...