Determining Optimum Redesign Plans for Avionics Based on Electronic Part Obsolescence Forecasts
Date Published: 2002-11-05
Paper Number:2002-01-3012
DOI: 10.4271/2002-01-3012
Citation:
Singh, P., Sandborn, P., Lorenson, D., and Geiser, T., "Determining Optimum Redesign Plans for Avionics Based on Electronic Part Obsolescence Forecasts," SAE Technical Paper 2002-01-3012, 2002, doi:10.4271/2002-01-3012.
Author(s):
P. Singh - University of Maryland
P. Sandborn - University of Maryland
D. Lorenson - Honeywell International, Inc.
T. Geiser - Price System, LLC
Abstract:
Many electronic parts have life cycles that are shorter than the life cycle of the product they are in. Life cycle mismatches caused by the obsolescence of electronic parts can result in significantly sustainment costs for long life systems. In particular, avionics often encounters part obsolescence problems before being fielded and nearly always experience part obsolescence problems during their field life. This paper presents a methodology for determining the optimum design refresh (redesign) schedule for long field life electronic systems based on forecasted electronic part obsolescence and a mix of obsolescence mitigation approaches ranging from lifetime buys to part substitution.
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