Integrated Planning of Asset-Use and Dry-Docking for a Fleet of Maritime Assets

28 Pages Posted: 9 Apr 2022

See all articles by Halit Metehan Dilaver

Halit Metehan Dilaver

affiliation not provided to SSRN

Alp Akçay

Eindhoven University of Technology (TUE) - Department of Industrial Engineering and Innovation Sciences

Geert-Jan van Houtum

Eindhoven University of Technology (TUE)

Abstract

In maritime industry, moving assets (e.g., naval ships, dredgers, pilot vessels) are subject to obligatory inspections that are based on calendar time. These inspections consist of exhaustive operations that need the assets to be towed into specialized facilities referred to as dry-docks. In addition, there are maintenance operations that need to be carried out as a result of usage-related deterioration of the assets, also requiring the assets to be dry-docked. In practice, a common approach for a fleet of assets is to synchronize these inspection and maintenance operations to avoid unnecessary dry-dockings. However, when and how these operations, some of which are calendar-based and some of which are usage-based, should be synchronized, and whether synchronizing them is always optimal remain as important questions. Since how an asset is used influences when it requires maintenance, answering these questions requires solving an integrated planning problem that combines the planning of asset-use and the planning of dry-docking. Operational constraints such as the locations of assets (i.e. the existence of dedicated assets that must be used at a particular location and flexible assets that can be used in multiple locations), limited dry-docking capacity, and the requirement to meet the demand for asset-use in each location make the problem even more challenging. We formulate this real-life problem as a Mixed Integer Linear Programming (MILP) model. The resulting optimal policy is compared with a benchmark approach from industry to quantify the benefit of integrated planning for asset-use and dry-docking.

Keywords: Integrated Planning, Maintenance, Mandatory Inspections, Resource Dependence, Mixed Integer Linear Programming

Suggested Citation

Dilaver, Halit Metehan and Akçay, Alp and van Houtum, Geert-Jan, Integrated Planning of Asset-Use and Dry-Docking for a Fleet of Maritime Assets. Available at SSRN: https://ssrn.com/abstract=4079768 or http://dx.doi.org/10.2139/ssrn.4079768

Halit Metehan Dilaver

affiliation not provided to SSRN ( email )

No Address Available

Alp Akçay (Contact Author)

Eindhoven University of Technology (TUE) - Department of Industrial Engineering and Innovation Sciences ( email )

Den Dolech 2
Eindhoven
Netherlands

Geert-Jan Van Houtum

Eindhoven University of Technology (TUE) ( email )

PO Box 513
Eindhoven, 5600 MB
Netherlands

Do you have a job opening that you would like to promote on SSRN?

Paper statistics

Downloads
49
Abstract Views
261
PlumX Metrics