- #1
jamesy_81
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Hi, I'm stuck on this progress checker question. I've come up with the answer of 6,041875 Nmm or 6,042 NM but this is wrong but I've been told my calcualators are correct. find my progress below. thanks for any help
Calculate the power that can be safely transferred by 100mm diameter shaft rotating at 150 RPM.
Assume the material is medium carbon steel.
Ultimate shear stress = 580N/mm2 ÷ 6 for dead load = 96.67N/mm2 [ζ] ]
Torque T = Jζ/R or 2Jζ/D
Where J = Polar second moment of area = ПD4/32 for a solid shaft.
Now T = 2ПD4ζ
32D
= ПD3ζ
16
= П*1003*96.67
16
Calculate the power that can be safely transferred by 100mm diameter shaft rotating at 150 RPM.
Assume the material is medium carbon steel.
Ultimate shear stress = 580N/mm2 ÷ 6 for dead load = 96.67N/mm2 [ζ] ]
Torque T = Jζ/R or 2Jζ/D
Where J = Polar second moment of area = ПD4/32 for a solid shaft.
Now T = 2ПD4ζ
32D
= ПD3ζ
16
= П*1003*96.67
16