PSAM 16 Conference Paper Overview
Welcome to the PSAM 16 Conference paper and speaker overview page.
Lead Author: Nancy Lindsey Co-author(s): Jeff Dawson, jeffrey.w.dawson@nasa.gov
Doug Sheldon, douglas.j.sheldon@jpl.nasa.gov
Anthony DiVenti, anthony.j.diventi@nasa.gov
Lionel Sindjui, lionel-nobel.w.sindjui@nasa.gov
| NASA Physics of Failure (PoF) for Reliability |
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| NASA Physics of Failure (PoF) for Reliability Authors: Nancy Lindsey, Jeff Dawson, Doug Sheldon, Anthony DiVenti, Lionel Sindjui Abstract: An item’s reliability or longevity is dependent not only on its design but also on how it is used, manufactured, tested, and the stresses it has or will experience. Stresses include operational and environmental exposures to thermal, voltage, current, age/exposure, mechanical, and radiation mechanisms. Therefore, in reliability analysis, it is important to consider the contributions of all of these factors when predicting the failure rates of components. Historically, there has been a reliance on handbook data (e.g., MIL-HDBK-217), but experience has shown that these values and distributions are not representative of actual performance (1,2). Therefore, to make more credible reliability and risk assessments for its missions, NASA must transition to estimating likelihoods of failure based on an item’s reliability/longevity factors (or the physical susceptibilities and strengths impacting the design’s performance) has or will experience, whenever possible. To facilitate this transition a “Handbook on Methodology for Physics of Failure Based Reliability Assessments” has been developed by NASA to assist in applying physics experiences or experiment physics for empirical analysis and conceptualized physics exposures or theoretical physics for deterministic analysis, to develop and aggregate realistic likelihoods of failure leading to more credible forecasts of item performance and longevity. In addition, since it is NASA’s intention that this document continues to evolve based on community lessons learned and the introduction of new assessment methodologies, NASA is encouraging and appreciates the contributions of current and future authors to maintain and enhance this handbook and its supporting case studies. References: 1) REF MIL-HDBK-217 Secretary of the Army Memo, 1996 2) SCiTech - EXPL-09/NASA Webinar, Reliability of Systems for Long Duration Missions, 2021 |
Paper NA280 Preview
Author and Presentation Info
Lead Author Name: Nancy Lindsey (nancy.j.lindsey@nasa.gov)
Bio: Nancy J Lindsey has spent 37+ years in aviation and aerospace engineering performing a variety of Systems and Mission Assurance engineering tasks across the entire gamut of space vehicle life cycles and program types including Defense & Commercial Communications Missions, Space-based Astronomical Observatories, Ground Systems, and Earth Science Monitoring Systems with national/international partners. She is now the Reliability, Maintainability, and Availability subject matter expert at NASA's Goddard Space Flight Center and the deputy Reliability & Maintainability Technical Fellow at NASA Headquarters. Mrs. Lindsey has a Bachelor of Science degree in Computer Science & Aeronautical Engineering from Embry-Riddle Aero. University in Daytona Beach, Florida, was trained in Flight Medicine and F-14 flight by the US Navy, and has a Master’s of Science degree in Space Studies, from the University of North Dakota. Nancy’s independent research efforts can be viewed via website: www.rcktmom.com.
Country: United States of America
Company: NASA HQ/GSFC
Job Title: Deputy R&M Technical Fellow (OSMA) & GSFC Reliability, Maintainability, and
Bio: Nancy J Lindsey has spent 37+ years in aviation and aerospace engineering performing a variety of Systems and Mission Assurance engineering tasks across the entire gamut of space vehicle life cycles and program types including Defense & Commercial Communications Missions, Space-based Astronomical Observatories, Ground Systems, and Earth Science Monitoring Systems with national/international partners. She is now the Reliability, Maintainability, and Availability subject matter expert at NASA's Goddard Space Flight Center and the deputy Reliability & Maintainability Technical Fellow at NASA Headquarters. Mrs. Lindsey has a Bachelor of Science degree in Computer Science & Aeronautical Engineering from Embry-Riddle Aero. University in Daytona Beach, Florida, was trained in Flight Medicine and F-14 flight by the US Navy, and has a Master’s of Science degree in Space Studies, from the University of North Dakota. Nancy’s independent research efforts can be viewed via website: www.rcktmom.com.
Country: United States of America
Company: NASA HQ/GSFC
Job Title: Deputy R&M Technical Fellow (OSMA) & GSFC Reliability, Maintainability, and