Hands_On Modal Gallery

Students go through the process of setting up the instrumentation

Laboratory Exercise Porsche Modal

Setup the data acquisition system, the cables and accelerometers

Sinusoidal Excitation at the resonance frequencies

Laboratory Exercise Porsche Modal

Students viewing the fundamental rigid body, rocking, bending modes

Laboratory Exercise - Modal Test on a Thin Plate

Analyzer, PCB Impact Hammer, Polytec Laser Vibrometer ME'Scope Modal Software

Exercise Objectives: The Student setup his test plate and instrumentation. A total of 20 FRFs were acquired on a 3" x 5" plate. The suspended plate was impacted with a miniature impact hammer. The response was acquired in terms of surface velocity with a Fiberoptic Laser. The frequency response functions were imported.

Setup APS 400 Shaker, Stinger + PCB Impedance Head

Laboratory Exercise Porsche Modal

Evening Session Break (Wednesday Night - 10:30 pm):

He finished the pizza and beer.

I wonder if he completed his modal test ?

[Don't worry Dave, we haven't E-mailed this picture to anyone at your office. By the way, I asked Hans "not "to give our web address to your wife. Unfortunately, she called before I spoke with him. Sorry, Jim]

Evening Session (Wednesday Night - 9:40 pm):

[The curvature of the Porsche needs some special attention.

What is the transducer orientation and angles & how accurate do we have to be ?

[ I wouldn't ask this guy. ]