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Track 1 Session 4
2:20 to 3:20 p.m. Wednesday March 26, 2008
Reliability Analysis and Test Planning
for Vibration Fatigue Effects in Mechanical and Electromechanical Components
Reliability engineering employs a
wide variety of reliability tests to achieve continuous reliability
improvement throughout the entire life cycle of the system or device
— from design, to manufacturing, to usage, and until after failure.
The successful implementation of Accelerated Reliability Stress
Testing requires a thorough understanding of a product's failure
modes as well as the proper selection of the screening test system
and its capabilities. Without prior knowledge of product responses
and the actual dynamic inputs produced by the test system, effective
stress test results may be unachievable or may not be able to be
replicated. Therefore, the product's failure modes and the test
system's operating characteristics must be understood before
selecting the proper stress function, stress magnitude and type of
test equipment. This presentation will discuss:
- Types of structural testing and
failure modes
- Equipment selection
- Definition of time domain vs. frequency domain
- When to consider vibration testing
- Stress levels and standard applications (such as MIL 810)
- Examples
Key Words: Reliability
Testing, Vibration Testing, Stress Based Life Predictions, Fatigue
Testing
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