How do I get a mechanical oscillator for foundation testing?

[hutxubix]

Hello everyone,

We want to set up some experiments on foundations involving harmonic loads, so we need some kind of oscillator (perhaps a Lazan mechanical oscillator or something like that) able to generate cyclic loads at different frequencies.

I have been looking around some company selling them, or some way of building one myself without much work, but I have found nothing. Any idea please?

 

[dgillette]

Are you in the US? What frequencies, amplitudes, and wave types do you need to apply? Might possibly have a lead for you, but would like to know that before I go talk to them.