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clc;
clear;
mprintf('MACHINE DESIGN \n Timothy H. Wentzell, P.E. \n EXAMPLE-8.1 Page No.160\n');
Dm=0.625; //[in] Mean diameter of spring
F=35; //[lb] Load
K=1.25; //[] Wahl factor for Dm/Dw=6.25 (figure 8.8)
Q=190000; //[lb/in^2] Expected ultimate strength
LF=0.263; //[] Loading factor
Dw=(K*8*F*Dm/(LF*%pi*Q))^(1/2.846); //[in] Wire diameter
mprintf('\n The wire diameter of spring is %f in.',Dw);
//Use U.S Steel 12-gage wire: Dw=0.105 in.
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