The Experts below are selected from a list of 8466 Experts worldwide ranked by ideXlab platform
Pameet Singh - One of the best experts on this subject based on the ideXlab platform.
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Sandborn, Electronic Part Obsolescence Driven Product Redesign Optimization ELECTRONIC PART OBSOLESCENCE DRIVEN Product Redesign OPTIMIZATION
2015Co-Authors: Pameet SinghAbstract:Many electronic parts have life cycles that are shorter than the life cycle of the Product they are in. Life cycle mismatches caused by the obsolescence of electronic parts result in higher sustainment costs for long life systems. In particular, avionics and military systems often encounter part obsolescence problems before being fielded and nearly always experience part obsolescence problems during their field life. This paper presents a methodology for determining the optimum design refresh (Redesign) schedule for long field life electronic systems based on forecasted electronic part obsolescence and a mix of obsolescence mitigation approaches ranging from lifetime buys to part substitution
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electronic part obsolescence driven Product Redesign optimization
2002Co-Authors: Pete Sandbo, Pameet SinghAbstract:Many electronic parts have life cycles that are shorter than the life cycle of the Product they are in. Life cycle mismatches caused by the obsolescence of electronic parts result in higher sustainment costs for long life systems. In particular, avionics and military systems often encounter part obsolescence problems before being fielded and nearly always experience part obsolescence problems during their field life. This paper presents a methodology for determining the optimum design refresh (Redesign) schedule for long field life electronic systems based on forecasted electronic part obsolescence and a mix of obsolescence mitigation approaches ranging from lifetime buys to part substitution.
Chun Hung Cheng - One of the best experts on this subject based on the ideXlab platform.
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multi period planning and uncertainty issues in cellular manufacturing a review and future directions
European Journal of Operational Research, 2007Co-Authors: Jaydeep Balakrishnan, Chun Hung ChengAbstract:Abstract In this paper we review research that has been done to address cellular manufacturing under conditions of multi-period planning horizons, with demand and resource uncertainties. Most traditional cell formation procedures ignore any changes in demand over time caused by Product Redesign and uncertainties due to volume variation, part mix variation, and resource unreliability. However in today’s business environment, Product life cycles are short, and demand volumes and Product mix can vary frequently. Thus cell design needs to address these issues. It is only recently that researchers have been modelling uncertainty and multi-period issues. In this paper we conduct a comprehensive review of the work that addresses these issues. We present mathematical programming formulations as well as a taxonomy of existing models. Finally we suggest some directions for future research.
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dynamic cellular manufacturing under multiperiod planning horizons
Journal of Manufacturing Technology Management, 2005Co-Authors: Jaydeep Balakrishnan, Chun Hung ChengAbstract:Purpose – The purpose of this research paper is to discuss cellular manufacturing is discussed under conditions of changing Product demand. Traditional cell formation procedures ignore any changes in demand over time from Product Redesign and other factors. However given that in today's business environment, Product life cycles are short, a framework is proposed that creates a multi‐period cellular layout plan including cell Redesign where appropriate.Design/methodology/approach – The framework is illustrated using a two‐stage procedure based on the generalized machine assignment problem and dynamic programming. This framework is conceptually compared to virtual cell manufacturing, which is useful when there is uncertainty in demand rather than anticipated changes in demand. A case study is used to explain how the concept would work in practice.Findings – One major characteristic of the proposed method is that it is flexible enough to incorporate existing cell formation procedures. It is shown through an ...
Jaydeep Balakrishnan - One of the best experts on this subject based on the ideXlab platform.
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multi period planning and uncertainty issues in cellular manufacturing a review and future directions
European Journal of Operational Research, 2007Co-Authors: Jaydeep Balakrishnan, Chun Hung ChengAbstract:Abstract In this paper we review research that has been done to address cellular manufacturing under conditions of multi-period planning horizons, with demand and resource uncertainties. Most traditional cell formation procedures ignore any changes in demand over time caused by Product Redesign and uncertainties due to volume variation, part mix variation, and resource unreliability. However in today’s business environment, Product life cycles are short, and demand volumes and Product mix can vary frequently. Thus cell design needs to address these issues. It is only recently that researchers have been modelling uncertainty and multi-period issues. In this paper we conduct a comprehensive review of the work that addresses these issues. We present mathematical programming formulations as well as a taxonomy of existing models. Finally we suggest some directions for future research.
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dynamic cellular manufacturing under multiperiod planning horizons
Journal of Manufacturing Technology Management, 2005Co-Authors: Jaydeep Balakrishnan, Chun Hung ChengAbstract:Purpose – The purpose of this research paper is to discuss cellular manufacturing is discussed under conditions of changing Product demand. Traditional cell formation procedures ignore any changes in demand over time from Product Redesign and other factors. However given that in today's business environment, Product life cycles are short, a framework is proposed that creates a multi‐period cellular layout plan including cell Redesign where appropriate.Design/methodology/approach – The framework is illustrated using a two‐stage procedure based on the generalized machine assignment problem and dynamic programming. This framework is conceptually compared to virtual cell manufacturing, which is useful when there is uncertainty in demand rather than anticipated changes in demand. A case study is used to explain how the concept would work in practice.Findings – One major characteristic of the proposed method is that it is flexible enough to incorporate existing cell formation procedures. It is shown through an ...
Andreas R. Köhler - One of the best experts on this subject based on the ideXlab platform.
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Life cycle assessment and eco-design of smart textiles: The importance of material selection demonstrated through e-textile Product Redesign
Materials & Design, 2015Co-Authors: Natascha M. Van Der Velden, Kristi Kuusk, Andreas R. KöhlerAbstract:Smart textiles have progressed well beyond the laboratory stage. A growing community of smart textile designers utilises engineered materials and advanced manufacturing technologies to create marketable Products. To implement an environmentally conscious way of Product innovation, the environmental impact of such Products needs to be taken into account already at the early design-stages. A life-cycle perspective on the consequences of design choices can guide the implementation of eco-design measures. However, not much literature is available thus far to empower designers in making sustainable design decisions. To meet this need, this article presents a life cycle assessment (LCA) of a wearable smart textile device for ambulant medical therapy. The case study focuses on material selection, since this aspect is one of the most relevant choices at the prototyping stage. The eco-cost approach was used to compare the LCA-results of the original prototype design against various eco-Redesign options. The results suggest several priority areas for environmental improvement. One possibility is the replacement of silver based conductive yarns by copper based alternatives. Another finding suggests the use of acryl instead of wool. The case study results are the starting point for further discussion on the role of designers with respect to responsible eco-design.
Anna Maria Biedermann - One of the best experts on this subject based on the ideXlab platform.
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obtaining sustainable Production from the Product design analysis
Journal of Cleaner Production, 2016Co-Authors: E Lacasa, J L Santolaya, Anna Maria BiedermannAbstract:Abstract Sustainability has become a requirement for competitive companies, which increasingly make conscious decisions with regard to the impact caused by the development of their Products. To be sustainable, Product design should contemplate a triple bottom line in which environmental protection, social expectations and distribution of profits should be considered. In this work, a Product development methodology that brings together traditional design criteria such as operative principles or mode of use and sustainability requirements is proposed. Three phases denominated respectively, Production inventory, sustainability assessment and Product Redesign are carried out to its implementation. The material flows exchanged by the industrial installation throughout the Production process are analyzed according to a life cycle assessment approach. A set of engineering metrics and indicators are selected to assess each sustainability aspect. Environmental impact is evaluated by means of both, the global warming indicator and the aggregated and particularly useful for designers, EI99 indicator. Economic dimension is addressed through the calculus of the net operating profit of the company. Finally, the social aspects associated to the stakeholder category of company workers are evaluated by the working hours and hourly wage. Environmental improvement strategies based mainly on the selection of low impact materials and the reduction of materials are applied in the Product Redesign process. Sustainable Product development methodology is used to obtain an improved design of two different Products, a solar tracker and an isothermal container. In both cases, a lower environmental impact and higher company benefit are achieved. In addition, an improvement of the social indicators is obtained in the case of the isothermal container. At the same time, the selected indicators are considered suitable to quantitatively assess each sustainability dimension, analyze and compare results.