Browsing by Author "Roy, Rajkumar"

Browsing by Author "Roy, Rajkumar"

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  • Grid computing for engineering design optimisation: Evolution and future trends 
    Goteng, Gokop; Tiwari, Ashutosh; Roy, Rajkumar (2007-03-01)
    Grid Computing is fast gaining ground both within academia and the commercial sectors. It has shifted from its traditional scientific-based applications to serviceoriented problem solving environments for commerce and ...
  • Grid Services for Multi-objective Optimisation 
    Goteng, Gokop; Tiwari, Ashutosh; Roy, Rajkumar (Cranfield University Press, 2009-03-31)
    The emerging grid technology is defined as an infrastructure for secure and coordinated large-scale resource sharing. In this paper, we describe the architecture and grid services of DECGrid. DECGrid enables distributed ...
  • Handling integrated quantitative and qualitative search space in engineering design optimisation problems 
    Oduguwa, Victor; Tiwari, Ashutosh; Roy, Rajkumar (2003-09-18)
    Since information in engineering design problems can be both quantitative (QT) and qualitative (QL) in nature, combining both types of information can result in more realistic solutions for real world optimisation problems. ...
  • Identifying challenges in quantifying uncertainty: case study in infrared thermography 
    Grenyer, Alex; Addepalli, Sri; Zhao, Yifan; Oakey, Luke; Erkoyuncu, John Ahmet; Roy, Rajkumar (Elsevier, 2018-07-03)
    Complex engineering systems present a wealth of uncertainties concerning aspects ranging from performance measurements to maintainability and through-life characteristics. A quantifiable understanding of these uncertainties ...
  • Improvement of cost estimating internal practice. 
    Souchoroukov, Petros (Cranfield University, 2004-10)
    This thesis is concerned with understanding the internal costing practices employed by commercial and engineering disciplines of cost estimating for generating estimates at the conceptual design stage of complex hardware ...
  • Improving efficiency of industrial maintenance with context aware adaptive authoring in augmented reality 
    Erkoyuncu, John Ahmet; Fernández del Amo, Iñigo; Roy, Rajkumar; Dalle Mura, Michela; Dini, Gino (Elsevier, 2017-04-17)
    Efficiency of industrial maintenance operation is significantly dependent on the skill and practice of the technicians involved. This paper demonstrates a novel approach to improve the maintenance efficiency through adaptive ...
  • ‘In-situ’Inspection Technologies: Trends in Degradation Assessment and Associated Technologies 
    Addepalli, Sri; Roy, Rajkumar; Axinte, D.; Mehen, Jorn (Elsevier, 2017-03-02)
    The advent of advanced, innovative and complex engineered systems has established new technologies that are far more superior and perform well even in harsh environments. It is well established that such next generation ...
  • Industry survey review of obsolescence management strategies in performance based contracts 
    Cabañas, Alfonso; Baguley, Paul; Roy, Rajkumar (Cranfield University Press, 2013-09-19)
    This research study has been developed through a cross sectorial benchmarking survey and represents the development of a descriptive framework from a management strategy perspective. The survey is based on face to face ...
  • An Innovative Process to Select Augmented Reality (AR) Technology for Maintenance 
    Palmarini, Riccardo; Erkoyuncu, John Ahmet; Roy, Rajkumar (Elsevier, 2017-03-02)
    Augmented Reality (AR) technology for maintenance aims to improve human performances by providing relevant information regarding both corrective and preventive maintenance. The development of an AR system involves the ...
  • An innovative user-centred support tool for Augmented Reality maintenance systems design: a preliminary study 
    Fernández del Amo, Iñigo; Galeotti, Elisa; Palmarini, Riccardo; Dini, Gino; Erkoyuncu, John Ahmet; Roy, Rajkumar (Elsevier, 2018-05-21)
    Augmented Reality (AR) technologies in maintenance are demonstrated to positively impact on technicians’ work and performance. Current research in this area is mainly focused on solving technical challenges related with ...
  • Intelligent e-mentoring service for cost estimating 
    Planas, Dolors (Cranfield University, 2006-09)
    The cost of products and services evolve during a project life cycle. During this time different cost estimates must be made that can be used as fundamental criteria for making design and manufacturing decisions. The ...
  • Investigation of recast and crack formation in laser trepanning drilling of CMSX-4 angled holes 
    Iralal Morar, Nicolau; Roy, Rajkumar; Mehnen, Jorn; Marithumu, Sundar; Gray, Simon; Roberts, Tracey; Nicholls, John R. (Springer, 2018-01-03)
    This paper presents an experimental investigation on the influences of laser trepanning drilling process parameters on the recast layer thickness and surface crack formation in CMSX-4 nickel-based superalloy angled holes. ...
  • A knowledge management framework to support product-service systems design 
    Baxter, David; Roy, Rajkumar; Doultsinou, Athanasia; Gao, James X.; Kalta, M. (Taylor & Francis, 2009-12-01)
    This paper presents a framework for knowledge reuse in a Product-Service Systems design scenario. The project aim is to develop a methodology to capture, represent and reuse knowledge to support product development in a ...
  • Knowledge model for decision support to manage schedule disturbance in steel making 
    Adesola, B. A. (Cranfield University, 2002-09)
    Higher production rates combined with consistent product quality and efficient energy use are the key objectives to be solved by production scheduling in the iron and steel industry. Scheduling systems used to assign ...
  • Lean manufacturing for SMEs: Enabling rapid response to demand changes 
    Achanga, Pius Coxwell; Shehab, Essam; Roy, Rajkumar; Nelder, Geoff (2005-12-31)
    Small-to-medium-sized manufacturing enterprises (SMEs) make significant contributions to most national economies. In the UK for instance, SMEs account for up to 40% of gross domestic product (GDP) and 85% of newly created ...
  • A life cycle model for Product-Service Systems design 
    Baxter, David; Doultsinou, Athanasia; Roy, Rajkumar; Gao, James X. (Publibook, 2008-10-22)
    Western manufacturing companies are developing innovative ways of delivering value that competes with the low cost paradigm. One such strategy is to deliver not only products, but systems that are closely aligned with the ...
  • Maintenance Informatics Dashboard Design for Through-life Engineering Services 
    Okoh, Caxton; Roy, Rajkumar; Mehen, Jorn (Elsevier, 2017-03-02)
    This article introduces maintenance informatics dashboard design approach for visualising maintenance, repair and overhaul events on a timeline. This paper presents a proposed methodology for aggregate visualisation ...
  • Managing knowledge within the manufacturing enterprise: An overview 
    Baxter, David; Roy, Rajkumar; Gao, James X. (Inderscience Enterprises Ltd, 2009-01-01)
    This paper examines the literature relating to manufacturing knowledge and describes how it contributes to the manufacturing enterprise. The review shows that there is a strong emphasis on design in the manufacturing ...
  • Manufacturing at double the speed 
    Allwood, Julian M.; Childs, Tom H. C.; Clare, Adam T.; De Silva, Anjali K. M.; Dhokia, Vimal; Hutchings, Ian M.; Leach, Richard K.; Leal-Ayala, David R.; Lowth, Stewart; Majewski, Candice E.; Marzano, Adelaide; Mehnen, Jorn; Nassehi, Aydin; Ozturk, Erdem; Raffles, Mark H.; Roy, Rajkumar; Shyha, Islam; Turner, Sam (Elsevier, 2015-11-02)
    The speed of manufacturing processes today depends on a trade-off between the physical processes of production, the wider system that allows these processes to operate and the co-ordination of a supply chain in the pursuit ...
  • A methodology for the selection of new technologies in the aviation industry 
    Houseman, Oliver; Tiwari, Ashutosh; Roy, Rajkumar (2004-11-29)
    The purpose of this report is to present a technology selection methodology to quantify both tangible and intangible benefits of certain technology alternatives within a fuzzy environment. Specifically, it describes ...