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//CHAPTER 7 ILLUSRTATION 4 PAGE NO 199
//TITLE:GOVERNORS
//FIGURE 7.7
clc
clear
//===========================================================================================
//INPUT DATA
g=9.81// ACCELERATION DUE TO GRAVITY
OA=.20// LENGHT OF UPPER ARM IN m
AC=.20// LENGTH OF LOWER ARM IN m
CD=.025// DISTANCE BETWEEN AXIS AND LOWER ARM IN m
AB=.1// RADIUS OF ROTATION OF BALLS IN m
N2=250// SPEED OF THE GOVERNOR IN rpm
X=.05// SLEEVE LIFT IN m
m=5// MASS OF BALL IN Kg
M=20// MASS OF SLEEVE IN Kg
//===========================================================
h2=(OA^2-AB^2)^.5// OB DISTANCE IN m IN FIGURE
h21=(AC^2-(AB-CD)^2)^.5// BD DISTANCE IN m IN FIGURE
TANbeeta=(AB-CD)/h21// TAN OF ANGLE OF INCLINATION OF THE LINK TO THE VERTICAL
TANalpha=AB/h2// TAN OF ANGLE OF INCLINATION OF THE ARM TO THE VERTICAL
k=TANbeeta/TANalpha
c=X/(2*(h2*(1+k)-X))// PERCENTAGE INCREASE IN SPEED
n=c*N2// INCREASE IN SPEED IN rpm
N1=N2+n// SPEED AFTER LIFT OF SLEEVE
E=c*g*((2*m/(1+k))+M)// GOVERNOR EFFORT IN N
P=E*X// GOVERNOR POWER IN N-m
printf('SPEED OF THE GOVERNOR WHEN SLEEVE IS LIFT BY 5 cm = %.3f rpm\n GOVERNOR EFFORT = %.3f N\n GOVERNOR POWER = %.3f N-m',N1,E,P)
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