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//CHAPTER 12 ILLUSRTATION 4 PAGE NO 314
//TITLE:Balancing of reciprocating of masses
clc
clear
pi=3.141
mR=900// mass of reciprocating parts in kg
N=90// speed of the engine in rpm
r=.45//crank radius in m
cP=.9*mR*(2*pi*N/60)^2*r*2^.5/1000// maximum unbalanced primary couple in kNm
printf('maximum unbalanced primary couple=%.3f k Nm',cP)
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