blob: 25875be1b25b2030ce4a60388a8f97a097ac5c97 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
|
//CHAPTER 6 ILLUSRTATION 7 PAGE NO 181
//TITLE:Turning Moment Diagram and Flywheel
clc
clear
pi=3.141
m=200// mass of the flywheel in kg
k=.5// radius of gyration in m
N1=360// upper limit of speed in rpm
N2=240// lower limit of speed in rpm
//==========
I=m*k^2// mass moment of inertia in kg m^2
w1=2*pi*N1/60
w2=2*pi*N2/60
E=1/2*I*(w1^2-w2^2)// fluctuation of energy in Nm
Pmin=E/(4*1000)// power in kw
Eex=Pmin*12*1000// Energy expended in performing each operation in N-m
printf('Mimimum power required= %.3f kw\n Energy expended in performing each operation= %.3f N-m',Pmin,Eex)
|
