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Derating Analysis · Chapter 7

References

The public standards and primary documents this topic draws on.

The public standards and primary documents this topic draws on. Every factual claim in the preceding chapters traces to one of these; the worked example's ratings, ceilings and temperatures are illustrative teaching values in the shape the standards use, and belong to no source.

Derating standards

  1. ECSS-Q-ST-30-11C Rev.2, Space product assurance: Derating, EEE components, European Cooperation for Space Standardization, 2021 (the European space derating requirements, by component family).
  2. NASA EEE-INST-002, Instructions for EEE Parts Selection, Screening, Qualification, and Derating, NASA Goddard Space Flight Center, April 2008, with Addendum 1 (derating tables alongside the part quality levels 1, 2 and 3 that set them).
  3. NAVSEA TE000-AB-GTP-010 Rev.1, Parts Derating Requirements and Application Manual for Navy Electronic Equipment, Naval Sea Systems Command (the Navy derating manual, by part family and application).
  4. MIL-HDBK-1547A, Electronic Parts, Materials, and Processes for Space and Launch Vehicles, US Department of Defense (the military space lineage; its derating requirements accompany the parts, materials and processes controls).
  5. MIL-STD-975M, NASA Standard Electrical, Electronic, and Electromechanical (EEE) Parts List, Notice M, 5 August 1994 (the standard parts list whose derating appendix remains in use on legacy programmes; superseded for Goddard work by EEE-INST-002 at entry 2).

Supporting standards and handbooks

  1. MIL-HDBK-217F Notice 2, Reliability Prediction of Electronic Equipment, US Department of Defense, 28 February 1995 (the temperature and stress factors that price a derating decision; the πV = (S/0.6)⁵ + 1 form and the Arrhenius πT).
  2. MIL-HDBK-338B, Electronic Reliability Design Handbook, US Department of Defense, 1 October 1998 (derating within the reliability design programme, and its relationship to part selection and thermal design).
  3. MIL-STD-1629A, Procedures for Performing a Failure Mode, Effects and Criticality Analysis, US Department of Defense, 24 November 1980 (where a waived overstress is recorded as a failure mode).

For the failure-rate models the two factors belong to, see the Reliability Prediction references; for the worksheet a waived violation is recorded in, the FMECA references.


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