Calculating Vibration Modes of a Cylinder (Drum Shell)?

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SUMMARY

The discussion focuses on calculating the vibration modes of a cylindrical drum shell using ANSYS and Finite Element Analysis (FEA). The user references a 1996 article proposing a method for this calculation and expresses difficulty with the underlying mathematics. They also mention a 2016 article that discusses FEA for thin cylindrical shells, seeking guidance on modeling techniques and easier methods to approach this problem.

PREREQUISITES
  • Understanding of Bessel Functions and their application in acoustic modeling
  • Familiarity with ANSYS software for simulation and analysis
  • Knowledge of Finite Element Analysis (FEA) principles
  • Basic mathematical skills related to vibration analysis
NEXT STEPS
  • Research ANSYS tutorials specifically for acoustic modeling
  • Study Finite Element Analysis techniques for cylindrical structures
  • Explore Bessel Function applications in acoustic synthesis
  • Investigate modern alternatives to ANSYS for vibration mode calculations
USEFUL FOR

Acoustic engineers, sound designers, and anyone involved in the modeling of musical instruments, particularly those interested in drum shell acoustics and vibration analysis.

mikejm
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I am working on some acoustic synthesis models of real world instruments. The Bessel Function zeros give the vibration modes of a circular membrane, which can be used to model a drum head or even roughly a cymbal.

However, much of a drum's sound (especially snare) comes from the "ring" of the shell itself, which is a cylinder.

I found an article from 1996 which seems to propose a method of calculating expected modes of a cylinder using ANSYS. I have attached it for reference.

However, I have never used ANSYS and the math is a bit over my head.

I will learn whatever I have to, including ANSYS however, to get the answer. I am wondering how I should go about this and if there are easier ways to model this problem, now that it is 22 years later from that article.

Any suggestions?

Thanks.
 

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I found another article from 2016 using Finite Element Analysis to calculate the modes of thin cylindrical shells. Again, though, the math is a bit above me and I'm not sure the best way to approach the modeling required for this problem.

What might be the best way of calculating this?

Thanks again.
 

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