Date & Time: 25th August, 2011; 11.30-12.30

Venue: Ramanujan Hall

Title: Modeling opportunistic maintenance and repair as competing risks

Speaker: Dr. Isha Dewan, Indian Statistical Institute, New Delhi

Abstract: Consider a system in continuous operation. It gives signals each time its deterioration state worsens.

The signals provide insight into the condition of the system, which the operator/maintenance staff uses in order to plan preventive maintenance. Assume that maintenance occurs at the first opportunity after a critical degradation signal is observed. We propose a Signal Model for studying the life of the system time by taking into account the signals, the rate of opportunities for maintenance, and the competition between maintenance and failure.