Week 1 Spur Gear Challenge

Spur Gear 

Aim: to perform static structural analysis on spur gear using ansys 

Objective: 

To carry out add analysis or per game with different materials  to find out equivalent stress ,total deformation, stress intensity.  to choose material based on results. 

Procedure: 

first we need to import 3D model of spur gear in ansys workbench for static structural analysis process. we need to assign material properties for the following three cases. 

case 1: gray cast iron 

case 2: cast bronze 

case 3: cast steel 

now we have to fix contact and target for spur gear teeth. we have to keep it as fictional type and formulation as augmented LaGrange add interface treatment as adjust to touch. 

assigning joint 

we need to assign joint for left and right spur gear, the connection type is body to ground the type of joint is revolute. 

Boundary condition 

in analysis settings we need to opt number of steps at 6 and we need to define it as by time Add maximum and minimum time as 0.2 sec and 5.e-002 s As well as the large deflection should be on. 

The left gear rotation is for 180 degree with an increment of 30 degree for each step 

the right gear as a moment of –10 N-m and the same for all steps 

Results: 

 Total deformation:

cast iron: 

cast bronze: 

Cast steel: 

equivalent stress: 

cast iron: 

cast bronze: 

Cast steel: 

Stress intensity: 

cast iron: 

cast bronze: 

Cast steel: 

Conclusion: 

From the above result and discussion, the best material from the three cases is cast iron