Simple (macroscopic) Cantilever in a Fluid with COMSOL

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SUMMARY

The discussion focuses on determining the eigenfrequencies of a macroscopic cantilever in a fluid using COMSOL Multiphysics. The user seeks a straightforward approach to model the cantilever, which is anchored at one end and subjected to a point force, while ignoring viscosity and complex Navier-Stokes equations. The goal is to enhance understanding of the software's capabilities by applying it to a simpler problem. The user expresses frustration with the complexity of existing COMSOL examples.

PREREQUISITES
  • Familiarity with COMSOL Multiphysics software
  • Understanding of cantilever beam theory
  • Basic knowledge of fluid dynamics principles
  • Experience with eigenfrequency analysis
NEXT STEPS
  • Explore COMSOL's modal analysis features for cantilever beams
  • Research fluid-structure interaction modeling in COMSOL
  • Learn about eigenfrequency calculations in mechanical systems
  • Investigate simplified fluid dynamics assumptions in COMSOL
USEFUL FOR

Mechanical engineers, researchers in fluid dynamics, and users of COMSOL Multiphysics looking to model cantilever systems and understand eigenfrequency analysis in fluid environments.

awesomginger
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So I feel like this should be a simpler problem than most with COMSOL...

I have a simple cantilever (anchored at one end) with a force at some point source which is making it vibrate at some frequency. This is a macroscopic cantilever, so you can ignore viscosity (and most of the other Navier Stokes things). It is in a fluid, say water or air, for now. How can I find the eigenfrequencies, or resonant frequencies of that cantilever in water?

Like I said, it seems as if it should be easy. All the examples that COMSOL provides seem to be of very complex things. It is great that they are showing off their software and all it's power, but I would love to know how to do this to increase my understanding of the software.


Thanks very much to any responses in advance
 
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