Ic engine(piston design) in C++ and C language
1 like497 views
The document provides design specifications and calculations for a cast iron piston in a single-acting four-stroke engine, detailing parameters such as bore diameter, stroke length, pressures, fuel consumption, and efficiency. It includes a C++ program that prompts the user for input values and calculates various attributes like cylinder head thickness, rib thickness, and piston dimensions. The program also assesses the safety of the design based on stress calculations.
Ic engine(piston design) in C++ and C language
- 1. Ques) Design a cast iron piston for a single acting four stroke engine for the following data; Bore Diameter=100mm; Length of stroke=125mm; Indicated mean effective pressure=0.75N/mm2 ; Maximum Pressure=5N/mm2 ; m=0.15kg/BP/h; h=42*103 kJ/kg; Speed=2000 r.p.m. #include<math.h> #include<conio.h> #include<iostream.h> void main() { clrscr(); float Em,Ip,Bp,N,D,L,H,C,m,h,x,n,th,th1,th2,th3,tr,t1,t2,t3,t4,b1,b2,l1,df,di,P,Pm,Sb,Fb,Z; cout<<"Enter The Bore Diameter And Length Of Stroke Of The IC Engine "; cin>>D>>L; cout<<"Enter The Speed Of IC Engine "; cin>>N; cout<<"Enter The Indicated Mean Effective Pressure "; cin>>Pm; cout<<"Enter The Maximum Gas Prerssure "; cin>>P; cout<<"Enter The Mechanical Efficiency Of IC Engine "; cin>>Em; cout<<"Enter The Fuel Consumption "; cin>>m; cout<<"Enter The Higher Calorific Value Of Fuel "; cin>>h; cout<<"Press-1, If The Engine Is Four Stroke "; cin>>x; if(x==1) n=N/2; else n=N; Ip=(Pm*L*3.14*D*D*n)/(60*4); Bp=(Em*Ip)/100;
- 2. H=(0.05*Bp*h*m)/3600; th1=(0.43*D*sqrt(P/38)); th2=(0.032*D)+1.5; th3=H/(12.56*46.6*222); if(th1>th2) { if(th1>th3) th=th1; else th=th3; } else th=th2; tr=(th/2.5); t1=(D*0.0316); t2=(0.8*t1); t3=(0.03*D)+t1+4.9;; t4=(0.3*t3);; b1=(1.1*th); b2=t2; l1=(0.475*D); df=(3.14*D*D*P)/(4*l1*15.7); di=(0.6*df); if((L/D)<1.5) { C=(0.7*D); cout<<"nCurvature Is="<<C; } else cout<<"nNo Curvature Required"; cout<<"nThickness Of Cylinder Head"<<th<<"nThickness Of Rib="<<tr <<"nRadial Thickness Of Ring="<<t1<<"nAxial Thickness Of Ring="<<t2 <<"nThickness Of Piston Barrel="<<t3 <<"nThickness Of Piston Barrel At The End="<<t4 <<"nThickness Of Top Land="<<b1<<"nDistance Between Two Rings="<<b2 <<"nLength Of Piston Cylinder At The Small End="<<l1 <<"nOuter Diameter="<<df<<"nInner Diameter="<<di; S=; Fb=(3.14*D*D*P)/4;