Laboratory 4
High-Speed Camera: Spring Surge

MECH324
Dynamics of Machines


Name: __________________________ Lab Sect. _______

Date: _______________


INCLUDE UNITS!

THEORETICAL

Wire diameter of spring, d:       ________

Diameter of spring coil, D:        ________

Number of active coils, Na.       ________

Natural frequency of spring, fn:  ________

EXPERIMENTAL

Scan rate of monitor:  ________

Period of wave (fixed-fixed):    _______

Natural frequency of spring, fn: _______

Natural frequency (fixed-free):  _______

% Difference (theoretical vs. experimental):

  _______

Describe an experimental procedure to get spring surge using the cart setup.  What qualities would the spring have?  How would the spring be attached to the carts?  How would you prevent lateral vibrations?  Keep in mind that the carts can only be driven at a max of a few hundred RPM.