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Numericals on Design against fluctuating loads
1 Answer
written 5.2 years ago by |
Q.1 A rotating steel shaft $(S_{ut}=1200 \ MPa)$ shown in fig below must support a load $F = 2\ KN$ with reliability of 99% Determine FOS.
$S_{ut}=1200\ MPa\ ( N/mm^2)$
R = 99
h = ?
$\sum M_B=0$
$R_A(400)-2\times 10^3(270)=0$
$R_A=1350N$
$\sum Fv=0 \uparrow +ve$
$R_A+R_B-2\times 10^3=0$
$R_B=650N$
BM calculation …