Page 281 - Analysis and Design of Machine Elements

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Shafts

Nomenclature l span, mm
M resultant bending moment, N mm
d shaft diameter, mm M equivalent bending moment,
ca
d equivalent diameter of a stepped Nmm
v
shaft, mm M H horizontal bending moment,
E elastic modulus, MPa Nmm
F force, N M V vertical bending moment, N mm
G shear modulus of elasticity, MPa m mass, kg
g acceleration of gravity, mm/s 2 m normal module, mm
n
I moment of inertia, mm 4 n rotational speed, rpm
J polar moment of inertia, mm 4 n critical speed, rpm
c
K cantilever length, mm P transmitted power, kW
k shaft stiffness or shaft spring rate, S safety factor
N/m S ca calculated safety factor
L calculated length of a shaft, mm S safety factor in tension

Analysis and Design of Machine Elements, First Edition. Wei Jiang.
© 2019 John Wiley & Sons Singapore Pte. Ltd. Published 2019 by John Wiley & Sons Singapore Pte. Ltd.
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