Question

Give four questions that would be appropriate for the reliability aspects of a design review of either a high speed mechanism involving bearings, shafts and gears and high mechanical stress, or for design of a DC electrical power supply unit which uses a standard AC power input.

Answer 1

• They ensure that the supply-chain participants have the capability to produce the parts (materials) and services necessary to meet the final reliability objectives and that those participants are following through.
• They identify the potential failure modes, failure sites, and failure mechanisms.
• They design to the quality level that can be controlled in manufacturing and assembly, considering the potential failure modes, failure sites, and failure mechanisms, obtained from the physics-of-failure analysis, and the life-cycle profile.
• They verify the reliability of the system under the expected life-cycle conditions.