# (Solved): Shaft & Roller Study Must know through this study Understanding the loads and constraints acting ...

Shaft & Roller Study Must know through this study Understanding the loads and constraints acting on a Shaft&Roller and creating the Free Body Diagram(FBD) Understanding the tensile strength, yield strength, and allowable stress of a material

?

Understanding the difference between shape factor and notch factor Caculating the fatigue life of a Shaft&Roller using the

S-N

curve of the material Understanding Fatigue failure, Mean Stress Effect, Miner's Rule Define the Load cycle considering the load characteristics Shaft & Roller Study example Evaluate the safety usage 2CGL SPM Work Roll Roll Force : 500 ton, Motor Spec' : 5,700 kW / RPM 125 400 Reduction Rate : 2.32 Strip Productivity : 30 Coil/Day, 300 day/yr S Shaft & Roller Study Must know through this study Understanding the loads and constraints acting on a Shaft&Roller and creating the Free Body Diagram(FBD) Understanding the tensile strength, yield strength, and allowable stress of a material

?

Understanding the difference between shape factor and notch factor Caculating the fatigue life of a Shaft &Roller using the

S-N

curve of the material Understanding Fatigue failure, Mean Stress Effect, Miner's Rule Define the Load cycle considering the load characteristics Shaft & Roller Study example Evaluate the safety usage 2CGL SPM Work Roll Roll Force : 500 ton, Motor Spec' : 5,700 kW / RPM 125 400 Reduction Rate : 2.32 Strip Productivity : 30 Coil/Day, 300 day/yr

2,

mr Strip Specification :

2.5mm(t)\times 1,200mm(w)\times (L)mm=24,600kg

Shape Factor: (

\alpha

), Notch Factor : (

\beta

) Roller Material : S45C-N Represent the applied loads and boundary condition on the roller using a Free Body Diagram(FBD) Calculate the stress acting at points "A", "B" I Calculate the fatigue life of the roller using S-N curvetrip Specification :

2.5mm(t)\times 1,200mm(w)\times (L^(8))mm=24,600kg

Shape Factor: (

\alpha

), Notch Factor : (

\beta

) Roller Material : S45C-N Represent the applied loads and boundary condition on the roller using a Free Body Diagram(FBD) (2) Calculate the stress acting at points "A", "B" (3) Calculate the fatigue life of the roller using

S-N

curve Shaft & Roller Study

q,

? S-N Curve(S45C)

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