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Pascual Imec06
1. Optimization of Inspection Decisions of Safety Related Systems Rodrigo Pascual, Ph.D. Department of Mechanical Engineering Universidad de Chile Pressure vessel lu 1 lu 2 pt 1 pt 2 pt 3 v 1 v 2
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4. Motivation Medical Expose dose control in radiotherapy systems Air transport Flight-by-wire control systems Automotive Airbags Antilock brake systems Process Emergency shutdown systems Military/Law enforcement Gas detectors Railway Automatic train stop systems Applications
5. Motivation Safety Systems in Process Industry (34 incidents) Source: Bell (2003) http://www.iee.org/Oncomms/pn/emc/Paper03.pdf Conception Design Implementation Operation & maintenance
15. Simplified model Overall availability Partial inspections Full inspections Probability of failure on demand Safety availability overall safety
16. Practical consideration Component failure rate (standard databases) Safety system level failure rate (plant information system) Complex System model One component model Conception Design Implementation Operation & maintenance