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Random Vibration Testing

Vibration testing is applied to a new productsurroundings and handling. Also, random
to make sure that it will last the rigors ofvibration testing checks the workmanship
shipping, handling, and transportation. Ifquality  and  reliability  of  the test item.
you have a product - referred to as the DUT
or device under test?a vibration test willThere are several companies that can perform
expose any potential flaw that your productrandom vibration testing for any product. All
may have by exposing it to shock. Productsthey require is that the product to come in
that are candidates for random vibrationthe packaging it will be in when released in
testing include cars, military electronics,the market; that the equipment it comes with
and others that are generally subjected tois included; and that the operating manual
irregular  pressure  and  airflow.that comes with and certain specifications of
its  make  are  included.
Of course, the common problem is trying to
know just how much shock should be applied toIf the DUT is found to have resonant
the DUT. Since the amount of pressure appliedfrequencies or defects through the test, the
during shipping, handling, and transportationmaker can then make adjustments to the
does not follow a certain pattern, it wouldproduct. The companies that administered the
be better to test the product with differingtest could provide a full analysis on the
levels of shock. That is said to be theproduct and give recommendations on how it
closest  simulation  to  reality.could be improved. They can also administer
other tests they think the product needs.
Random vibration simulates shock that mayRandom vibration testing has remained mostly
differ occasionally, randomly, or even both.unchanged since it was launched in early
Random vibration testing proves the ability1950s.
of the DUT to endure the pressurized



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