Level Loading Surface Ship Maintenance Availabilities
Abstract
Navy surface ships need to undergo regular maintenance pier side to meet fleet operational requirements. These maintenance jobscommonly known as maintenance availabilitiesare often contracted out to private shipyards in a ships home port. While the Navy needs a maintenance schedule that meets fleet operational requirements, the shipyards prefer the workload to be leveled over time to sustain a trained and skilled workforce. Currently, surface ship maintenance scheduling is planned manually. This thesis develops a mixed integer linear programming model to produce an optimal surfaceship maintenance schedule to account for two competing objectives: (1) level the workload over time in a regional port, and (2) minimize the schedule shift from fleet operational requirements. In a case study conducted in the Port of San Diego, the optimization model reduces workload fluctuation substantially over a 5-year period by slightly shifting the original maintenance schedule. The optimal schedule provides private shipyards with a more sustainable and predictable workload, which in turn reduces the risk of maintenance backlogs for the Navy.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 2020
- Accession Number
- AD1114688
Entities
People
- Lauren G. O'malley
Organizations
- Naval Postgraduate School