SHAFTS Flashcards
1
Q
Relation of Power, Torque, and Speed
A
2πTN
where T = Fr
2
Q
General Formula of Torsional Shear Stress, Ss
A
Ss = Tc/J
and
θ = TL/JG
3
Q
Torsional Shear Stress for Solid Circular Shaft, Ss
A
16T/πD^3
J = (π/32)D^4
4
Q
Torsional Shear Stress for hollow Circular Shaft, Ss
A
16TDo/π(Do^4-Di^4)
J = (π/32)(Do^4-Di^4)
5
Q
Maximum Shear Stress, Ss max
A
(16/πD^3)[sqrt(M^2 + T^2)]
M = bending moment
T = torsional moment
6
Q
Maximum tensile stress or compressive stress, St max
A
(16/πD^3)[(M+sqrt(M^2 + T^2)]
M = bending moment
T = torsional moment
7
Q
Main Power Transmitting Shafts, P
A
(D^3*N)/80
8
Q
Lineshafts Carrying Pulleys, P
A
(D^3*N)/53.5
9
Q
Small, short shafts, P
A
(D^3*N)/38
