Damping ability in rubber wheels

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SUMMARY

The discussion focuses on determining the damping ability of rubber wheels for a Gokart project without suspension. Participants suggest conducting an experiment where a rubber-tired wheel is dropped onto a flat surface to record the elevation of the center over time. This data can be used to perform a log decrement calculation, providing an approximate damping factor. Multiple trials with different tires are recommended to achieve a more accurate average damping value.

PREREQUISITES
  • Understanding of basic physics principles, particularly damping and oscillation.
  • Familiarity with experimental data collection methods.
  • Knowledge of log decrement calculations for damping analysis.
  • Experience with rubber material properties and their effects on performance.
NEXT STEPS
  • Research methods for conducting damping experiments with rubber materials.
  • Learn about log decrement calculations and their applications in mechanical systems.
  • Explore the effects of different rubber compounds on damping characteristics.
  • Investigate the role of tire design in the overall damping ability of wheels.
USEFUL FOR

This discussion is beneficial for mechanical engineers, automotive designers, and hobbyists involved in Gokart construction or similar projects focusing on wheel performance and damping characteristics.

Bohr1227
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Homework Statement


I don't have a specific question, but I try to calculate very easy on a simple Gokart in a project. I try to figure out if there is a way to approximately determine what the damping ability of rubber wheels is because I don't have any suspension on it.

Homework Equations


I don't know about any. I know that if there is a suspension/spring, I can use Hooke's law. I'm not sure what to do for the rubber wheels...

The Attempt at a Solution

 
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Can you set up a test in which you drop a rubber tired wheel onto a flat surface and record elevation of the center as a function of time? From this data, you should be able to make a log decrement calculation that gives the damping factor. It will be approximate, and you may need to repeat the experiment with several different tires to find an average, but it will be reality based information.
 

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