Next message: Szabó Géza: "RE: lv-ab: sanding the nonskid texture"
In a message dated 10-Feb-03 10:39:41 Eastern Standard Time,
writes:
> Don't mount directly on a
> bulkhead that will act like a sounding board, use good sound
> absorbing mounts, stuff like that.
>
Mount the noisy part on resilient mounts attached to something with great
mass. The more resilient, the more mass, the less vibrations passed on.
Airborne sound needs to have airways blocked by airtight enclosures. Sound
absorbing materials are two. Those that soak up sound into foamlike sinks
and those that use a lead membrane between two layers of resilient material.
Norm
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