Searched for:
(1 - 19 of 19)
document
Newcamp, Jeffrey (author), Verhagen, W.J.C. (author), Santos, Bruno F. (author), Curran, R. (author)
Military aircraft retirements are an afterthought for many lifecycle planners. More active management of end-of-life fleets can yield increased confidence in fleet capability and retirement timelines. This work provides fleet managers with a tool to manage remaining aircraft flight hours to yield a desired fleet retirement pattern. It solves...
journal article 2019
document
Koornneef, H. (author), Verhagen, W.J.C. (author), Curran, R. (author)
Delays are costly to airlines in both money and image. A significant number of delays is caused by unexpected technical failures of aircraft systems or components. These failures, if not dealt with efficiently, can cause disruptions in the flight schedule and network. The annual costs of these type of disruptions add up to an estimated cost...
conference paper 2019
document
Callewaert, Pieter (author), Verhagen, W.J.C. (author), Curran, R. (author)
A decision support framework is proposed, allowing for the integration of aircraft maintenance work progress monitoring into the aircraft maintenance planning decision support process. The framework is able to monitor the progression of planned maintenance by analysing real-time data on work progress. This can be used to explore optimal task...
conference paper 2018
document
Li, R. (author), Verhagen, W.J.C. (author), Curran, R. (author)
Prognostic and Health Management (PHM) describes a set of capabilities that enable effective and efficient approaches towards data analysis for fault diagnostics and failure prognostics. This can support decision making related to health management, sustainment and operation of critical systems, such as aviation systems. As a result of the...
conference paper 2018
document
Newcamp, J.M. (author), Verhagen, W.J.C. (author), Curran, R. (author)
It is well known that aircraft fleets are aging alongside rising operations and support costs. Logisticians and fleet managers who better understand the milestones and timeline of an aging fleet can recognise potential savings. This paper outlines generalised milestones germane to military aircraft fleets and then discusses the causes that lead...
journal article 2017
document
Koornneef, H. (author), Verhagen, W.J.C. (author), Curran, R. (author)
The aircraft dispatch decision is a complex analysis based on many factors related to airworthiness regulations, aircraft health status, resource availability at current and future stop(s) and operational preferences of the operator. Within the turnaround time (TAT) a decision has to be made whether the aircraft can return to service, defects...
conference paper 2017
document
Newcamp, J.M. (author), Verhagen, W.J.C. (author), Udluft, H. (author), Curran, R. (author)
This article presents a retirement analysis model for aircraft fleets. By employing a greedy algorithm, the presented solution is capable of identifying individually weak assets in a fleet of aircraft with inhomogeneous historical utilization. The model forecasts future retirement scenarios employing user-defined decision periods, informed by...
journal article 2017
document
Verhagen, W.J.C. (author), Curran, R. (author), de Boer, L.W.M. (author)
Costs associated with unscheduled and preventive maintenance can contribute significantly to an airline's expenditure. Reliability analysis can help to identify and plan for maintenance events. Reliability analysis in industry is often limited to statistically based approaches that incorporate failure times as...
conference paper 2017
document
Newcamp, J.M. (author), Verhagen, W.J.C. (author), Curran, R. (author)
Individual aircraft tracking data can be used by aircraft fleet managers to detect patterns in historical usage as a means to aid aging aircraft decision-making. This work tackles two aspects of applying these tracking data: investigating retirement patterns and assessing how base assignment can impact usage. The A-10, C-17 and F-35 acquisition...
conference paper 2017
document
Koornneef, H. (author), Verhagen, W.J.C. (author), Curran, R. (author)
The use of documentation for task support in aircraft line maintenance is still mostly paper-based, which is slow, burdensome and prone to error. This paper provides an overview of the issues associated with the use of paper-based documentation in aircraft line maintenance and describes the development of a novel concept for contextualised...
journal article 2017
document
Dhanisetty, V.S.V. (author), Verhagen, W.J.C. (author), Curran, R. (author)
Decision making in daily maintenance requires consideration of multiple factors. The importance of each of the factors fluctuates depending on the repair scenario and the needs of the maintainer. In order to include the prioritisation of multiple criteria, a weighted decision making model is developed. The model evaluates all repair options and...
conference paper 2017
document
Newcamp, J.M. (author), Verhagen, W.J.C. (author), Curran, R. (author)
Military aircraft fleets are continuing to age despite increased structural integrity concerns and rising maintenance costs. Aircraft are not being replaced or retired in large numbers but are instead having their lives extended beyond their original design service lives. Because aging aircraft cost more to maintain, this additional burden on...
conference paper 2016
document
Zhao, X. (author), Verhagen, W.J.C. (author), Curran, R. (author)
The present study develops a method for the sake of evaluating Disposal and Recycle (D&R) cost in view of the increasing demand in aircraft retirement. Firstly, a process model is extracted. The subordinated cost elements are also identified. Next, the cost aggregations based on the D&R process steps are discussed. Moreover, it proposes...
book chapter 2016
document
Burhani, Shahir (author), Verhagen, W.J.C. (author), Curran, R. (author)
Aircraft and aircraft components are redelivered to the next operator or owner during the phase-out process. During this process the operator is required by law and contract requirements to show compliance with maintenance procedures. At KLM E&M the phase-out documentation process is under increasing scrutiny as the number of aircraft...
conference paper 2016
document
Koornneef, H. (author), Verhagen, W.J.C. (author), Curran, R. (author)
Currently, task support information in aircraft maintenance is mostly provided using paper-based solutions, which are burdensome, slow and prone to error. Aircraft maintenance documentation contains vast amounts of information irrelevant for the task at hand and even for the simplest tasks multiple documents need to be consulted. Next to these...
book chapter 2016
document
Newcamp, J.M. (author), Verhagen, W.J.C. (author), Curran, R. (author)
Military attack aircraft are susceptible to the harmful effects of widespread fatigue damage caused by cyclic loading of structural components, which leads to airframe retirement. Modern structural health monitoring techniques use a multitude of sensors and high data collection rates. Some legacy airframes, which are most susceptible to fatigue...
journal article 2016
document
Dhanisetty, V.S.V. (author), Verhagen, W.J.C. (author), Curran, R. (author)
This paper details the development of a decision-making model that evaluates the multiple repair levels that a composite structure can undergo, each with its inherent achievable survivability and consequence to operations in terms of availability, costs, and scheduling. The goal of this model is to provide the maintainer an integrated approach...
conference paper 2016
document
Curran, R. (author), Fischer, L. (author), Pérez, D. (author), Klein, K. (author), Hoekstra, J. (author), Roling, P. (author), Verhagen, W.J.C. (author)
Air transport must evolve if it is to optimize its value in the 21st century. The mood in the aerospace industry is positive with regard to economic recovery, but the focus in this transitional time must be on sustaining value, without losing sight of environmental and safety priorities
book 2012
document
Curran, R. (author), Verhagen, W.J.C. (author), Van Tooren, M.J.L. (author)
The paper is associated with the integration of multi-disciplinary knowledge within a Knowledge Based Engineering (KBE)-enabled design framework. To support this integration effort, the KNOMAD methodology has been devised. KNOMAD stands for Knowledge Optimized Manufacture And Design and is a methodology for the analytical utilisation of multi...
conference paper 2010
Searched for:
(1 - 19 of 19)