2. Gear Tooth FEA analysis
Geometry Details :
Pitch dia of gear ring is 2.000”
pitch dia of small gear is 1.333”
center-to-center is 1.6665”
2
3. Gear Tooth FEA analysis
Mesh Plot :
Material properties (steel): PLANE42- Plane Stress with
Young’s modulus = 30E6 psi thickness option is used
Poisson’s ratio = 0.29
Coefficient of friction= 0.1 (assumed)
3
4. Gear Tooth FEA analysis
Loads and Boundary conditions :
Torque = 155 lb inch
This master node is
This master node (where the torque is
arrested in all the direction Contact elements are created
applied) is arrested in all the direction
in between the mating tooth
except rotation in z axis.
CERIG is created in the hoop direction (UY) in the cylindrical coordinates
One gear is fixed and torque is applied to the another
4
9. Gear Tooth FEA analysis
First Principal Stress Plot (S1) :
Maximum stress is 63 ksi
Stresses in psi 9
10. Gear Tooth FEA analysis
First Principal Stress Plot (S1) :
Driven Gear :
Maximum stress
is 63 ksi
Stresses in psi 10
11. Gear Tooth FEA analysis
First Principal Stress Plot (S1) :
Fixed Gear :
Maximum stress
is 48 ksi
Stresses in psi 11
12. Gear Tooth FEA analysis
Von Mises Stress Plot (Seqv) :
This is localized stress due to contact elements
Maximum stress is
76 ksi
Stresses in psi 12
13. Gear Tooth FEA analysis
Von Mises Stress Plot (Seqv) :
Driven Gear :
This is localized stress due to contact elements
Maximum stress
is 76 ksi
Stresses in psi 13
14. Gear Tooth FEA analysis
Von Mises Stress Plot (Seqv) :
Fixed Gear :
This is localized stress due to contact elements
Maximum stress
is 45 ksi
Stresses in psi 14
