Support Component Test Requirements: Environmental and Reliability Testing

A set of specifications and methodology for environmental reliability of support components is outlined here. Special attention is devoted to consistency for mechanical shock and vibration testing. Tests are to be performed on a motherboard on which the components are mounted, rather than on a separate fixture such as Mil fixture. A more realistic environment is achieved, and the need to understand the fixture transfer function is eliminated. A mechanically “worst” test platform was derived from detailed mechanical analysis and dynamic testing. Special attention is given here to consistency by providing means to achieve equivalent shock pulses of different shapes and by suggesting a procedure to adjust vibration levels for longer duration tests.

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