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In Reply to: RE: That's where the orange slices come into play posted by vinnie2 on June 15, 2020 at 04:19:02
Fluids are excellent for vibration damping. I once used an isolation transformer that resonated loudly within the listening room.
The solution was to simply place a plastic container filled with 2 liters of water on top of the enclosure. Buzz begone.
I was referring to something like a hydraulic jack. It works because the fluid transmits force with no loss from the small piston to the larger. Not sure we are talking about the same thing.
Hydraulics involves expansion and containment of fluid pressure rather than vibration damping, which involves dissipation of vibrational energy as it travels within the medium, converting vibrational energy into heat.
By the way, I first tried small cans of sauer kraut, same size cans as the mandarin orange slices. Could be my imagination, but it didn't work as well. In a classical case of making the preconceived theory fit the data, I told myself that sauer kraut is too dense, compared to orange slices which have some buoyancy.
Friction is key to energy dissipation, since mechanical interaction involved in the action on a molecular level converts vibrational energy into heat. The distribution of mass involved with clumps of sauerkraut strands vs. bulbous orange slices likely affects the resonance characteristics of the container, with one container sounding better than the other for custom tuning purposes. Resonance control in the form of mechanical tuning is most likely what the cans of food are affecting rather than notable vibration damping, nor any type of isolation properties, I reckon.
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