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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: unless... posted by My name is Fred on January 21, 2016 at 13:10:37:
I guess I did a bad job of making my point. When a solid object vibrates, there are vibrational nodes. A "node" is a small area on the surface that does not move. I cannot describe this phenomenon in words so it is absolutely clear, but I think of two children swinging a jump rope between them. Where the children grasp the rope, there is essentially no movement of the rope; the children are at the nodes or represent the nodes. At the center of the length of rope strung between them, there is maximal movement. That's what happens when a shelf vibrates, too. These points can be fairly easily identified by tapping on the shelf while listening with a stethoscope at various points on the surface. If you place a tiptoe or any other footer over such an area it will not be activated by "vibration" of the shelf. If you use tiptoes judiciously in such a manner, you can pretty much avoid excitation in the vertical direction of gear that is supported by the tiptoes. In that sense, the tiptoe acts like a diode acts with respect to voltage.
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- vibration - Lew 14:59:59 01/25/16 (0)
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