Page 57 - Shock and Vibration Overview
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Simulating Shock & Vibrations in the Laboratory
Figure 40: The LDS V455 is a good general purpose shock and vibration shaker. It has a useable
frequency range of 5 Hz to 7.5 kHz, a peak-to-peak displacement maximum at 0.375”, and a
maximum sine force peak at 100 pounds-force.
Modal Testing
Shakers are also used extensively in modal testing. In these test setups, typically a much
smaller shaker is needed to excite the range of modal frequencies you may be
interested in. For this type of testing the Modal Shop offers the best range of solutions,
including rental services. Figure 41 provides an image and performance plot of one of
their mini-shakers. This shaker is ideal for general purpose testing on small components
and also very useful as an excitation source for modal testing.
Figure 41: The Modal Shop’s 2004E mini-shaker is pictured with its payload curve.
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