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Current research lines Rodrigo Pascual [email_address] Presentation @  Meeting of Maintenance Researchers University of Toronto, October 31, 2006 http://www.ing.uchile.cl/~rpascual
Ouline ,[object Object],[object Object],Physical assets  decision-making Learning strategies
Maintenance and replacement intervals
Downtime cost profile Time to repair/overhaul Downtime costs
Results Expected global cost for various budgets levels Overhaul duration (days) + Repair duration (days)
Effects of budget on costs and times Global cost Overhaul time Replacement cycle Repair time Overhaul frequency Budget
Strategic resource assignment for fleet overhauls ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],1 3 2 4 Argentina Bolivia Perú Chile
Optimization ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Resulting overhaul program (u/year) Assignments Subfleet year Dissuasive power: +4% w.r.t. historical value
Water company Pumps overhaul program 0 1 Costs Global cost Overhaul costs Operation costs (energy Other costs Interval between overhauls ,[object Object],[object Object],[object Object],[object Object],[object Object]
Optimization of Inspection Decisions of Safety Related Systems R. Pascual, D. Louit, A.K.S. Jardine, Optimal inspection intervals for safety systems with partial inspections, Working paper, 2006. Unavailability Inspection frequency Overall  Unknown Known (inspections, repairs,  replacements)  Costs Reliability model
Example Partial coverage Full coverage  =0.7  =1.0
Education in Engineering asset management ,[object Object]
Active learning strategies R. Pascual, R. Uribe  ,  Experiential Learning Strategies in a Mechanical Engineering Senior Course, 6th Intl. Workshop Active Learning in Eng. Educ., Monterrey, 2006. M.R.Hodkiewicz, R.Pascual, Education in Engineering Asset Management – current trends and challenges, 2nd Int. Conf. Eng. Asset Manag., Iran, 2006.
Current collaborations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],“ Optimization of Inspection Decisions of Safety Related Systems”, IMEC, 2006.
In early stages ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Current research lines and maintenance optimization

  • 1. Current research lines Rodrigo Pascual [email_address] Presentation @ Meeting of Maintenance Researchers University of Toronto, October 31, 2006 http://www.ing.uchile.cl/~rpascual
  • 2.
  • 4. Downtime cost profile Time to repair/overhaul Downtime costs
  • 5. Results Expected global cost for various budgets levels Overhaul duration (days) + Repair duration (days)
  • 6. Effects of budget on costs and times Global cost Overhaul time Replacement cycle Repair time Overhaul frequency Budget
  • 7.
  • 8.
  • 9. Resulting overhaul program (u/year) Assignments Subfleet year Dissuasive power: +4% w.r.t. historical value
  • 10.
  • 11. Optimization of Inspection Decisions of Safety Related Systems R. Pascual, D. Louit, A.K.S. Jardine, Optimal inspection intervals for safety systems with partial inspections, Working paper, 2006. Unavailability Inspection frequency Overall Unknown Known (inspections, repairs, replacements) Costs Reliability model
  • 12. Example Partial coverage Full coverage  =0.7  =1.0
  • 13.
  • 14. Active learning strategies R. Pascual, R. Uribe , Experiential Learning Strategies in a Mechanical Engineering Senior Course, 6th Intl. Workshop Active Learning in Eng. Educ., Monterrey, 2006. M.R.Hodkiewicz, R.Pascual, Education in Engineering Asset Management – current trends and challenges, 2nd Int. Conf. Eng. Asset Manag., Iran, 2006.
  • 15.
  • 16.