Re: Determining the Pitch of Bells

From: Greg Pettengill (
Date: Sun Feb 23 2003 - 19:59:47 EET

Hi Chris,

If it is okay with you and would not mind me "picking your brains" in public, I would like to share our conversation with the entire list.

Is there a particular FEA software package that you would recommend for this type of application? If so, why?

Are there alternative methodologies that I could use?

Best Regards
Greg Pettengill
Cote' Art & Engineering
  ----- Original Message -----
  From: Chris Sutcliffe
  To: Greg Pettengill
  Sent: Sunday, February 23, 2003 8:18 AM
  Subject: RE: Determining the Pitch of Bells

  Dear Greg
  Why don't you try some modal analysis using an FEA package. This should give you the principle modes and frequencies of the vibrations allowing you to predict the effects of your design on the acoustic performance of the bells.
  Best regards
  Dr. Chris Sutcliffe

  Rapid, Micro and Bio Manufacturing Research
  The University of Liverpool
  Department of Engineering
  Ashton Building
  Brownlow Hill
  L69 3GL

  Tel. (0151) 794 4316
  Fax. (0151) 794 4703
  Mobile (0151) 794 7729



    -----Original Message-----
    From: []On Behalf Of Greg Pettengill
    Sent: 23 February 2003 04:32
    To: RP-ML
    Subject: Determining the Pitch of Bells

    Dear RPML,

    I was hoping that someone might be able to help me with a problem I'm trying to solve. I am designing cast metal bells in different sizes. And need to calculate what their pitch will be relative to their size. Even though this is a new design and not a conventional bell shape I thought that it may be possible to make a reasonably close estimate. Perhaps by extrapolating data obtained from testing a series of scale models.

    Best Regards
    Greg Pettengill
    Cote' Art & Engineering

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