-2
votes
1answer
61 views

Measuring vibration and converting to force (N) [closed]

The test is: To have a rotating machine, bolted into a factory floor. To measure the vibration on 3 axis (output of accelerometers can be acceleration or velocity in $\mathrm{m/s}$ or ...
7
votes
1answer
174 views

Why does vibration loosen screws?

I am trying to figure out why vibrations (say, from an engine) loosen screws. It seems to me that there is evident symmetry between loosening and tightening a screw. I am wondering what breaks this ...