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Track 2 Session 1
9:10 to 10:10 a.m. Tuesday June 17, 2008
CAE Tools: One of Your Most Valuable
Reliability Tools
"We need a solution to this problem
yesterday!" How many times have you started off on the path to
solving a
reliability problem with this phrase, whether stated or
just implied? To meet this kind of pressure, the traditional
approach is to attack the problem from the test-fix-test-fix mode
and hope your first or second trial will provide an acceptable, but
not necessarily optimal, solution. This session presents
valuable lessons learned and procedures from a recent project that can
be applied to future new designs. The old "tried and true" physical
test-fix-test-fix methods were abandoned and we applied our most
important reliability tools for solving vibration problems. These
tools are computer-aided engineering (CAE) modeling, virtual
testing and Campbell diagrams. The use of these tools allowed us to
identify the most important vibration modes before "virtually"
conducting test-fix-test-fix of 18 different scenarios. This virtual
testing saved many months of physical testing before actually
cutting metal to prototype the final "reliable" design. By using
these tools and investing a little more time up-front in the initial
design stage you can "virtually" analyze and test many more designs
than possible in real life due to time and money constraints.
Key Words: Successful Use of Reliability Tools,
Reliability Toolbox, Reliability Incorporated in the Design Team,
CAE Toolbox, Campbell Diagram, Instrumented Hammer
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