initial commit / add all books

1 files changed, 26 insertions, 0 deletions

diff --git a/1835/CH5/EX5.4/Ex5_4.sce b/1835/CH5/EX5.4/Ex5_4.sce
new file mode 100755
index 000000000..3545232ee
--- /dev/null
+++ b/1835/CH5/EX5.4/Ex5_4.sce
@@ -0,0 +1,26 @@
+//CHAPTER 5 ILLUSRTATION 4 PAGE NO 162

+//TITLE:Inertia Force Analysis in Machines

+clc

+clear

+pi=3.141

+D=.10//            Diameter of petrol engine in m

+L=.12//            Stroke length in m

+l=.25//            length of connecting in m

+r=L/2

+mR=1.2//          mass of piston in kg

+N=1800//           speed in rpm

+teeta=25//             angle of inclination of crank in degrees

+p=680*10^3//       gas pressure in N/m^2

+n=l/r

+g=9.81//           acceleration due to gravity

+//=======================================

+w=2*pi*N/60//                    angular speed in rpm

+Fl=pi/4*D^2*p//          force due to gas pressure in N

+Fi=mR*w^2*r*(cosd(teeta)+cosd(2*teeta)/(n))//   inertia force due to reciprocating parts in N

+Fp=Fl-Fi+mR*g//            net force on piston in N

+Fq=n*Fp/((n^2-(sind(teeta))^2)^.5)//      resultant load on gudgeon pin in N

+Fn=Fp*sind(teeta)/((n^2-(sind(teeta))^2)^.5)//   thrust on cylinder walls in N

+fi=Fl+mR*g//         inertia force of the reciprocating parts before the gudgeon pin load is reversed in N

+w1=(fi/mR/r/(cosd(teeta)+cosd(2*teeta)/(n)))^.5

+N1=60*w1/(2*pi)

+printf('Net force on piston = %.3f N\n Resultant load on gudgeon pin = %.3f N\n Thrust on cylinder walls = %.3f N\n speed at which other things remining same,the gudgeon pin load would be reversed in directionm= %.3f rpm',Fp,Fq,Fn,N1)