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 one year ago
to my fellow mechanical engineers, please help me with some basic machine design problems.
a certain drive shaft rotating at 500 rpm transmits 200 hp to an 8 inch diameter gear. Design a suitable solid shaft for this application. the shaft is ductile. Design stresses are to be limited to Smax= 134 ksi and SHEAR max = 40 ksi
 one year ago
to my fellow mechanical engineers, please help me with some basic machine design problems. a certain drive shaft rotating at 500 rpm transmits 200 hp to an 8 inch diameter gear. Design a suitable solid shaft for this application. the shaft is ductile. Design stresses are to be limited to Smax= 134 ksi and SHEAR max = 40 ksi

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Arronn456
 one year ago
Best ResponseYou've already chosen the best response.0The highest grade of aluminum would be it best bet maybe air plane grade?

ajmayberry
 one year ago
Best ResponseYou've already chosen the best response.0The best I can do is say to use \[\tau=F/Ao\] \[\tau=G * \gamma\] where tau is shear, and G is shear modulus (a constant for each metal) and \[\sigma=\epsilon*E\] where E is modulus of elasticity (constant for each metal), sigma is stress, and epsilon is strain. For stress, you sub yield strength or tensile strength (given for each metal). If this is a real application use yield strength because that says when it will deform where tensile strength says where it will break. We don't want any deformity in a real application. \[Ao = (do/2)^{2} \pi\] This is all from a materials science POV, so please disregard if you are in a higher level than that.
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