Generating vertical vibrations

  • #1

Main Question or Discussion Point

Homework Statement



anyone have any suggestions for devices which generate vertical vibrations, preferably of variable amplitude (say, up to a cm or so) and of variable frequency (around 10hz) which can be used to vibrate a container full of, say, sand?

Homework Equations



umm...

The Attempt at a Solution



uhh...
 

Answers and Replies

  • #2
4
0
This could be tough depending on how much sand you are quaking. May I suggest using pneumatics to pressurize something like innertubes? The problem is that the waveform would be full of compression/ pressurization artifacts, the advantage is that its pretty cheap.
 
  • #3
32
0
My sugestion: a counter rotating eccentric mass exciter. It is very easy to build and operate, and it will do the job as you want.
 

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