Week 2 Railwheel and Track

OBJECTIVE

To simulate the Railwheel and track for their lifecycle and the stress, strain, and total deformation provided by the wheel running on the track by the given forces.

Case 1: Load of 100000 N.

Case 2: Load of 5 times of 100000N.

And Implement user-defined results and compare both results in all aspects of the evaluation.

Procedure:

1. For the simulation of the rail wheel and track the static structural material which is default has been used to evaluate the result.

2. First, the geometry is imported and then opened directly in the mechanical module.

3. To set up certain parameters and loads for the simulation process of the rail wheel and track the materials is default as structural steel with the property mentioned below.

4. To understand the contact between the rail wheel and track they are renamed based on the definition and then flip contact to the target.

Two contacts are provided between them:

1) Frictional- Wheel to running rail.

2) Frictionless - shaft to the wheel.

5. After giving the parameters, the joints to be applied for the application to be run on the simulation process while evaluating the result.

The first joined is applied is the fixed joint for the non-moment of the track while running the wheel on them.

6. Second is the transitional joint given to the shaft, was the shaft is attached to the wheel the forces act on the shaft will be transitional to the wheel.

7. The final joint is the planar joint which provided to the wheel.

Mesh

Element size: 50mm

and the three faces are selected with the facing size around 35mm.

8. Giving the appropriate parameters in the analysis setting with some joint load that need to apply on the geometry.

After getting the parameters of the analysis setting two loads are applied

1) Bearing load with the value of 100000N

2) Joint displacement

The following parameters need to be evaluated for the result of the rail wheel and track:

• Equivalent Von misses stress.
• Total deformation.
• Life cycle.
• User-defined result.

RESULTS

Bearing load 500KN and 100KN. Compare the result for total deformation, Equivalent stress, and life under both loads.

Result and conclusion:

Hence from above results we conclude, total deformation doesnot changes but max stress increases. Hence it decreases the life of assembly and wheel drastically. So for more life we should apply lesser load.

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