Week 8 Worm Gear Challenge

Worm Gear

Objective:

To perform transient structural analysis on a worm gear assembly, in order to rotate the worm so as to get to almost end of the half-cut gear and get results for Equivalent stress, Equivalent elastic strain and the total deformation in the model.

1. Analysis System: Transient Structural
2. Material Properties: Structural Steel

3. Mesh:

Physics Preference: Mechanical

Solver Preference: Mechanical APDL

Element Order: Program Controlled

Element Size: 2 mm

Mesh Element Quality Graph:

4. Contacts:

Frictionless Contact is defined between Worm and Gear.

5. Joints

• Body-Ground Revolute Joint on Worm.

• Body-Ground Revolute Joint on Gear.

6. Analysis Setting

No of Steps: 15

Large Deformation: ON

Weak Spring: Program Controlled

7. Joint Load

• Joint Rotation Load is given in 15 steps as 100,200,300,400,500,600,700,800,900,1000,1100,1200,1300,1400,1500 on Worm.

Result Plot:

Equivalent stress
Equivalent elastic strain
Total deformation

Conclusion:

Sr. No	Result Plot	Values
1	Equivalent stress	2117.5
2	Equivalent elastic strain	0.010878
3	Total deformation	14.412

1. Equivalent stress of 2117.5 Mpa is get generated while transient analysis of worm gear and total deformation of 14.412 mm is observed.
2. Equivalent elastic strain of 0.010878 is generated in worm gear.
3. And total deformation is around 14.412 mm.