Not really - bdiament - Tweakers' Asylum

Not really

Posted by bdiament (A) on August 22, 2002 at 09:10:04

In Reply to: Thanks for the link posted by JBC on August 22, 2002 at 07:57:45:

Hi JBC,

"1. Spikes - it seems to me that spikes couple gear to a supporting surface in stable way which helps to minimise vibration transmission from the supporting surface to the gear, while also allowing for energy drainage."

It isn't logical to assume a rigid coupling, as provided by spikes, will "minimize vibration transmission from the supporting surface". On the contrary, it will very efficiently transmit vibrations. You can prove this yourself quite easily by holding one hand atop a component supported by spikes while using the other hand to slap (or knock on) the surface on which the spikes sit. I promise you will feel the vibration.

The concept of "energy drainage" has been spoken of often on this site. Simply put, any path that allows vibrations to pass will do so in (at least) two directions, not just one. There ain't no drainage except for the wallets of the unsuspecting.

Happy Listening!
Barry

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Follow Ups Full Thread

Topic - spikes and stands - what's the physics? - JBC 16:02:10 08/21/02 (19)

Here's why: - Frosty 13:06:33 08/22/02 (2)

Re: Here's why: - speyer 20:40:31 08/22/02 (1)

Re: Here's why: - Frosty 03:30:45 08/23/02 (0)

Re: Turntable mass - Clink 09:57:00 08/22/02 (7)

Turntables and massive isolation supports - David Aiken 16:37:03 08/22/02 (0)

Wait a gosh darn minute... - Frosty 12:43:17 08/22/02 (4)

Okay teacher..... - Clink 20:48:31 08/22/02 (3)

Re: Okay teacher..... - Frosty 03:27:49 08/23/02 (2)

The effects are likely difficult to predict - JBC 08:15:03 08/23/02 (1)

Re: The effects are likely difficult to predict - Frosty 11:20:50 08/23/02 (0)

mass of spiked shelf tunes resonant frequency? - JBC 10:49:54 08/22/02 (0)

You are looking at two different situations - orejones 09:47:53 08/22/02 (0)

Re: spikes and stands - what's the physics? - David Aiken 01:15:57 08/22/02 (5)

Re: spikes and stands - what's the physics? - strail 09:31:28 08/22/02 (0)

Thanks for the link - JBC 07:57:45 08/22/02 (3)

Not really - bdiament 09:10:04 08/22/02 (2)

Re: Not really - JBC 10:54:53 08/22/02 (1)

Re: Not really - David Aiken 16:20:24 08/22/02 (0)

Ah, the old draining the energy vs. isolating it. - Norm 16:50:28 08/21/02 (0)

Follow Ups

Not really - bdiament 09:10:04 08/22/02 (2)

Re: Not really - JBC 10:54:53 08/22/02 (1)

Re: Not really - David Aiken 16:20:24 08/22/02 (0)

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