Week 8 Worm Gear Challenge
OBJECTIVE :-
- To obtain the Equivalent stress,Equivalent elastic strain and total deformation by perform a transient structural analysis on a worm gear assembly
PROCEDRE:-
- Open ansys workbench R2
- select transient structural analysis
- rename the work
- open engineering data section ,add required materials like structural steel
- import the geometry
- open ansys mechanical
- rename geometry parts as suitable
- select structural steel for all parts
- rename default contacts in connection section based on defenition and flip its contact and target

- insert body to ground revelute joint , select its scope by selecting inside surface of the gear

- insert body to ground revelute joint , select inside surface of the worm

- in mesh section turn on adaptive sizing and input element size as 5 mm
- in analysis section input number of step as 15
- change weak spring to program controlled
- keep large deflection on and turn on auto time step
- for 2 to 15 step turn on carry over time

- insert joint load in transient section ,select joint as revelute -Ground to worm

- select type as revelution .input data through tabular data
- run solve
RESULT :-
ALL PARTS MADE UP OF STRUCTURAL STEEL :-
TOTAL DEFORAMTION :-

EQUIVALENT STRESS :-

EQUIVALENT STRAIN:-

TABULATION :-
| TOTAL DEFORMATION (mm) | EQUIVALENT STRESS(MPa) | EQUIVALENT STRAIN(mm/mm) | |
| CASE I | 14.706 | 1178.2 | 0.0064543 |
CONCLUSION :-
- Total deformation is 14.706 mm
- Equivalent stress in worm gear model is 1178.2 MPa
- Equivalent strain is 0.0064543