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RE: Front cross member braces from Ron Wood



Yeah. I saw that after I replied ;)

In the case of the chain, the individual links would most probably produce a
noise *higher* in frequency than human hearing and some of the impact energy
would also be absorbed by movement of the chain. Anyway, this is going well
off topic so time to shut up...

-----Original Message-----
From: Robert E Matuszak [mailto:matuszakr@dteenergy.com]
Sent: 06 November 2001 14:48
To: John Edwards
Cc: 'Fry, Larry'; Chris DeLong; kcollins1@socal.rr.com;
scirocco-l@scirocco.org
Subject: Re: Front cross member braces from Ron Wood


Uh.....I think he said steel "CHAIN"

John Edwards wrote:

> Hitting the steel cable *will* create a noise and it will be "louder" than
> hitting the bar as there will be more amplitude in the wave traveling
> through the cable. Imagine the cable hung from a support by one end,
hitting
> it on the ground would result in the grpund absorbing the energy.
>
> The difference is, the noise produced by the cable will have a much, much
> lower frequency and hence outside the range of human hearing....
>
> -----Original Message-----
> From: Fry, Larry [mailto:LEF@chem-tronics.com]
> Sent: 06 November 2001 14:27
> To: Chris DeLong; kcollins1@socal.rr.com; scirocco-l@scirocco.org
> Subject: RE: Front cross member braces from Ron Wood
>
> Quite.   That's why you get vibrations(sound)from a plucked guitar string
> only when it's stretched tight (solid).
> Put another way, strike a four-foot steel rod and it will "ring".  Strike
a
> four-foot length of steel chain and it won't.
>
> Larry  sandiego16V
>
> -----Original Message-----
> From: Chris DeLong [mailto:green536@hotmail.com]
> Sent: Tuesday, November 06, 2001 12:32 AM
> To: kcollins1@socal.rr.com; scirocco-l@scirocco.org
> Subject: Re: Front cross member braces from Ron Wood
>
> So you are saying Larry that resonant harmonics become more pronounced in
a
> solid structure than they normally would be given a loose structure? Keep
in
>
> mind that harmonics are vibrations.
>
> Chris DeLong
> ICQ#45030867
> Seattle, WA USA
> '80 16V 'Rocco ragtop
> '91 GLi 2.0 16V
> '77 Rabbit 16V
> '80 'Vert (parting out!)
> '61 17 Window type II
> '91 Vanagon
> '78 Rabbit
> '78 Rabbit (for sale)
> '87 GTi 16V
>
> >From: Kevin Collins <kcollins1@socal.rr.com>
> >To: scirocco-l@scirocco.org
> >Subject: Re: Front cross member braces from Ron Wood
> >Date: Mon, 05 Nov 2001 22:35:24 -0800
> >
> >Larry wrote:
> >
> > > any device that stiffens the structure will increase felt vibrations.
> >
> >Really?  Hasn't happened in my case.  And thinking about it, I don't
follow
> >your logic - for instance, passenger cars have been built with increasing
> >rigidivity and "stiffness" for the last 20 years or so - and the effect
> >is just the opposite - to make them more solid, rattle-free, and long-
> >lasting.  What am I missing?
> >
> >--
> >Kevin Collins
> >Huntington Beach, CA
> >'86.5 16V 2.0
> >'00 Passat GLS 1.8T
> >
> >--
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> >
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