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Aircraft Repair

The Experts below are selected from a list of 522 Experts worldwide ranked by ideXlab platform

J. Christopher Beck – 1st expert on this subject based on the ideXlab platform

  • Scheduling a dynamic Aircraft Repair shop with limited Repair resources
    Journal of Artificial Intelligence Research, 2013
    Co-Authors: Maliheh Aramon Bajestani, J. Christopher Beck

    Abstract:

    We address a dynamic Repair shop scheduling problem in the context of military Aircraft fleet management where the goal is to maintain a full complement of Aircraft over the long-term. A number of flights, each with a requirement for a specific number and type of Aircraft, are already scheduled over a long horizon. We need to assign Aircraft to flights and schedule Repair activities while considering the flights requirements, Repair capacity, and Aircraft failures. The number of Aircraft awaiting Repair dynamically changes over time due to failures and it is therefore necessary to rebuild the Repair schedule online. To solve the problem, we view the dynamic Repair shop as successive static Repair scheduling sub-problems over shorter time periods. We propose a complete approach based on the logic-based Benders decomposition to solve the static sub-problems, and design different rescheduling policies to schedule the dynamic Repair shop. Computational experiments demonstrate that the Benders model is able to find and prove optimal solutions on average four times faster than a mixed integer programming model. The rescheduling approach having both aspects of scheduling over a longer horizon and quickly adjusting the schedule increases Aircraft available in the long term by 10% compared to the approaches having either one of the aspects alone.

  • ICAPS – Scheduling an Aircraft Repair shop
    , 2011
    Co-Authors: Maliheh Aramon Bajestani, J. Christopher Beck

    Abstract:

    We address a scheduling problem in the context of military Aircraft maintenance where the goal is to meet the Aircraft requirements for a number of missions in the presence of breakdowns. The assignment of Aircraft to a mission must consider the requirements for the mission, the probability of Aircraft failure, and capacity of the Repair shop that maintains the Aircraft. Therefore, a solution both assigns Aircraft to missions and schedules the Repair shop to meet the assignments. We propose a dispatching heuristic algorithm; three complete approaches based on mixed integer programming, constraint programming, and logic-based Benders decomposition; and a hybrid heuristic-complete approach. Experiments demonstrate that the logic-based Benders variation combining mixed integer programming and constraint programming outperforms the other approaches, that the dispatching heuristic can feasibly schedule the Repair shop in a very short time, and that using the dispatching solution as a bound marginally improves the complete approaches.

  • Scheduling an Aircraft Repair Shop
    Proceedings of the Twenty-First International Conference on Automated Planning and Scheduling Scheduling, 2011
    Co-Authors: Maliheh Aramon Bajestani, J. Christopher Beck

    Abstract:

    We address a scheduling problem in the context of military Aircraft maintenance where the goal is to meet the Aircraft requirements for a number of missions in the presence of breakdowns. The assignment of Aircraft to a mission must consider the requirements for the mission, the probability of Aircraft failure, and capacity of the Repair shop that maintains the Aircraft. Therefore, a solution both assigns Aircraft to missions and schedules the Repair shop to meet the assignments. We propose a dispatching heuristic algorithm; three complete approaches based on mixed integer programming, constraint programming, and logic-based Benders decomposition; and a hybrid heuristic-complete approach. Experiments demonstrate that the logic-based Benders variation combining mixed integer programming and constraint programming outperforms the other approaches, that the dispatching heuristic can feasibly schedule the Repair shop in a very short time, and that using the dispatching solution as a bound marginally improves the complete approaches. Copyright © 2011, Association for the Advancement of Artificial Intelligence. All rights reserved.

Graham Bevan – 2nd expert on this subject based on the ideXlab platform

  • Chapter 11 MECHANICAL FASTENING SYSTEMS
    Care and Repair of Advanced Composites, 1
    Co-Authors: Keith Armstrong, William Cole, Graham Bevan

    Abstract:

    This second edition has been extensively updated to keep pace with the growing use of composite materials in commercial aviation. A worldwide reference for Repair technicians and design engineers, the book is an outgrowth of the course syllabus that was developed by the Training Task Group of SAE’s Commercial Aircraft Composite Repair Committee (CACRC) and published as SAE AIR 4938, Composite and Bonded Structure Technician Specialist Training Document. Topics new to this edition include: Nondestructive Inspection (NDI) Methods Fasteners for Composite Materials A Method for the Surface Preparation of Metals Prior to Adhesive Bonding Repair Design Although this book has been written primarily for use in Aircraft Repair other applications including marine and automotive are also covered.

  • Care and Repair of Advanced Composites
    Care and Repair of Advanced Composites, 1
    Co-Authors: Keith Armstrong, William Cole, Graham Bevan

    Abstract:

    This second edition has been extensively updated to keep pace with the growing use of composite materials in commercial aviation. A worldwide reference for Repair technicians and design engineers, the book is an outgrowth of the course syllabus that was developed by the Training Task Group of SAE’s Commercial Aircraft Composite Repair Committee (CACRC) and published as SAE AIR 4938, Composite and Bonded Structure Technician Specialist Training Document. Topics new to this edition include: Nondestructive Inspection (NDI) Methods Fasteners for Composite Materials A Method for the Surface Preparation of Metals Prior to Adhesive Bonding Repair Design Although this book has been written primarily for use in Aircraft Repair other applications including marine and automotive are also covered.

  • Chapter 8 SOURCE DOCUMENTS
    Care and Repair of Advanced Composites, 1
    Co-Authors: Keith Armstrong, William Cole, Graham Bevan

    Abstract:

    This second edition has been extensively updated to keep pace with the growing use of composite materials in commercial aviation. A worldwide reference for Repair technicians and design engineers, the book is an outgrowth of the course syllabus that was developed by the Training Task Group of SAE’s Commercial Aircraft Composite Repair Committee (CACRC) and published as SAE AIR 4938, Composite and Bonded Structure Technician Specialist Training Document. Topics new to this edition include: Nondestructive Inspection (NDI) Methods Fasteners for Composite Materials A Method for the Surface Preparation of Metals Prior to Adhesive Bonding Repair Design Although this book has been written primarily for use in Aircraft Repair other applications including marine and automotive are also covered.

Christopher J Beck – 3rd expert on this subject based on the ideXlab platform

  • scheduling an Aircraft Repair shop
    International Conference on Automated Planning and Scheduling, 2011
    Co-Authors: Maliheh Aramon Bajestani, Christopher J Beck

    Abstract:

    We address a scheduling problem in the context of military Aircraft maintenance where the goal is to meet the Aircraft requirements for a number of missions in the presence of breakdowns. The assignment of Aircraft to a mission must consider the requirements for the mission, the probability of Aircraft failure, and capacity of the Repair shop that maintains the Aircraft. Therefore, a solution both assigns Aircraft to missions and schedules the Repair shop to meet the assignments. We propose a dispatching heuristic algorithm; three complete approaches based on mixed integer programming, constraint programming, and logic-based Benders decomposition; and a hybrid heuristic-complete approach. Experiments demonstrate that the logic-based Benders variation combining mixed integer programming and constraint programming outperforms the other approaches, that the dispatching heuristic can feasibly schedule the Repair shop in a very short time, and that using the dispatching solution as a bound marginally improves the complete approaches.