×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Acoustics

Acoustics

Acoustics

(OP)
Ideal Material and shape for clock chime rod. Traditional grandfather clocks produce a mechanical melody by allowing the movement hammer to strike a series of chime rods. What materials are best to produce the loudest and most resonance? What shape of the chime rod is best to product the loudest and most resonance?

RE: Acoustics

From my own clock - it has a wonderfull tone and fairly loud.People always comment on the fine tone. There are two straight brass rods ..100" x7" and .115"x8". A smaller wall clock, much older, has a .057"x 36" steel helical chime ,not nearly as nice a tone.Both are far better than the electronic whimpy ones.Of course what it's housed in makes a difference also.

RE: Acoustics

Resonance is a function of modulus and grain structure.  I do know that many organ pipes are made from high lead brasses.
The sound volume will largely be a factor of your sounding board.
Some large clocks use tubular chimes.

= = = = = = = = = = = = = = = = = = = =
Still trying to help you stop corrosion.
formerly Trent Tube, now Plymouth Tube
eblessman@plymouth.com
or edstainless@earthlink.net

RE: Acoustics

I think the answer is that for simplicity, the traditional materials have been demonstrated to have best performance with the least amount of engineering.

However, given that you have an idea of what is needed, you hypothetically can engineer any small group of materials to give the desired performance, assuming that money wasn't an issue.

TTFN

FAQ731-376: Eng-Tips.com Forum Policies

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources