Week 1 Spur Gear Challenge

In this challenge , we will simulate the analysis for 2 spur gears

model : spur gears have been defined by position(i.e. left or right)

meshing: global meshing of 1mm has been given

Contacts:

frictional contact

symmetric behaviour

augmented lagrange formulation

adjust to touch interface treatment

Revolute joints have been given to both gears

Analysis setting has been done as per inserted image

Joints loads:

Spur left has been a tabular rotation of 30 to 180 degree

spur right have been given a moment of 10Nm

CASE 1 :

Materials - Cast iron ductile

equivalent stress - 342.09MPa

total deformation - 30 mm

stress intensity - 357.74MPa

CASE 2 :

material - CAST STEEL

equivalent stress - 347.33MPa

total deformation - 30 mm

stress intensity - 365.09MPa

CASE 3:

material - bronze_cast

equivalent stress - 330.25MPa

total deformation - 30mm

stress intensity - 350.45MPa

conclusion

	equivalent stress(MPa)	total deformation(mm)	stress intensity(MPa)
cast_iron_ductile	342.09	30	357.74
cast_steel	347.33	30	365.09
bronze_cast	330.25	30	350.45

We should consider bronze cast as its stress intensity at a crack tip is low as compared to other materials , which is a measure of stress concentration at a possible fracture point.

low stress intensity value lead to high life.