Random Vibration Testing

Vibration testing is applied to a new product to makeendure the pressurized surroundings and handling.
sure that it will last the rigors of shipping, handling,Also, random vibration testing checks the
and transportation. If you have a product - referredworkmanship quality and reliability of the test item.
to as the DUT or device under test?a vibration testThere are several companies that can perform
will expose any potential flaw that your product mayrandom vibration testing for any product. All they
have by exposing it to shock. Products that arerequire is that the product to come in the packaging
candidates for random vibration testing include cars,it will be in when released in the market; that the
military electronics, and others that are generallyequipment it comes with is included; and that the
subjected to irregular pressure and airflow.operating manual that comes with and certain
Of course, the common problem is trying to knowspecifications of its make are included.
just how much shock should be applied to the DUT.If the DUT is found to have resonant frequencies or
Since the amount of pressure applied during shipping,defects through the test, the maker can then make
handling, and transportation does not follow a certainadjustments to the product. The companies that
pattern, it would be better to test the product withadministered the test could provide a full analysis on
differing levels of shock. That is said to be thethe product and give recommendations on how it
closest simulation to reality.could be improved. They can also administer other
Random vibration simulates shock that may differtests they think the product needs. Random vibration
occasionally, randomly, or even both. Randomtesting has remained mostly unchanged since it was
vibration testing proves the ability of the DUT tolaunched in early 1950s.