The Experts below are selected from a list of 33693 Experts worldwide ranked by ideXlab platform
Alexis Perezduarte - One of the best experts on this subject based on the ideXlab platform.
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platform selection under performance bounds in optimal design of product families
Journal of Mechanical Design, 2005Co-Authors: Ryan Fellini, Michael Kokkolaras, Panos Y Papalambros, Alexis PerezduarteAbstract:Designing a family of product variants that share some components usually requires a compromise in performance relative to the individually optimized variants due to the Commonality constraints. Choosing components for sharing may depend on what performance losses can be tolerated. In this article an optimal design problem is formulated to choose product components to be shared without exceeding user-specified bounds on performance. This enables the designer to control tradeoffs and obtain optimal product family designs for maximizing Commonality at different levels of acceptable performance. A family of automotive body side frames is used to demonstrate the approach.
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platform selection under performance loss constraints in optimal design of product families
Design Automation Conference, 2002Co-Authors: Ryan Fellini, Michael Kokkolaras, Panos Y Papalambros, Alexis PerezduarteAbstract:Designing a family of product variants that share some components usually entails a performance loss relative to the individually optimized variants due to the Commonality constraints. Choosing com ...
Timothy W. Simpson - One of the best experts on this subject based on the ideXlab platform.
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product platform and product family design methods and applications
2010Co-Authors: Timothy W. Simpson, Zahed Siddique, Jianxin JiaoAbstract:Platform-Based Product Family Development.- Platform-Based Product Family Development.- Front-End Issues Related to Platform-Based Product Family Development.- Effective Product Platform Planning in the Front End.- Platform-Driven Development of Product Families.- Platform Concept Evaluation.- Platform Leveraging Strategies and Market Segmentation.- Product Family Positioning.- Commonality Indices for Assessing Product Families.- Optimization Methods to Support Platform-Based Product Family Development.- Methods for Optimizing Product Platforms and Product Families.- Commonality Decisions in Product Family Design.- Product Variety Optimization.- Analytical Target Cascading in Product Family Design.- Determining Product Platform Extent.- Back-End Issues Related to Platform-Based Product Family Development.- A Roadmap for Product Architecture Costing.- An Activity-Based Costing Method to Support Product Family Design.- Product Family Redesign Using a Platform Approach.- Process Platform and Production Configuration for Product Families.- Measuring Shape Commonality.- Process Parameter Platform Design to Manage Workstation Capacity.- Applications of Platform-Based Product Family Development.- Ice Scraper Product Family Development at Innovation Factory.- Architecting and Implementing Profitable Product Families and Shared Engineering Platforms.- A Case Study of the Product Design Generator.- Product Platform Management Practice at Cetetherm.
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improving an existing product family based on Commonality diversity modularity and cost
Design Studies, 2007Co-Authors: Timothy W. Simpson, Fabrice Alizon, Steven B ShooterAbstract:As product life cycles become shorter and shorter, stakes are higher in terms of sales and profits, making it an imperative for companies to enhance existing product families as much as possible. In this paper, a methodology using the Design Structure Matrix flow, Value Analysis, and the Commonality versus Diversity Index is proposed to improve an existing family of products. These tools assess and improve Commonality/diversity trade-off within the family, feature satisfaction through design, and definition of new modules/components and their interfaces. A case study based on a family of refrigerators is detailed in this paper to demonstrate the methodology.
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improving an existing product family based on Commonality diversity modularity and cost
2006 ASME International Design Engineering Technical Conferences and Computers and Information In Engineering Conference DETC2006, 2006Co-Authors: Fabrice Alizon, Steven B Shooter, Timothy W. SimpsonAbstract:As product life cycles become shorter and shorter, stakes are higher in terms of sales and profits, making it an imperative for companies to enhance existing product families as much as possible. Redesigning a family of products can become a difficult task when considering the number of variables (products, modules, components, etc.), competing objectives (diversity-Commonality, cost-variety, etc.), and actual technical solutions (cost value, architectural constraints), etc. In this paper, a methodology using the Design Structure Matrix flow (DSMflow ), Value Analysis (VA), and the Commonality versus Diversity Index (CDI) is proposed to improve an existing family of products. These three tools enable the assessment and the improvement of (1) Commonality and diversity within the family, (2) feature satisfaction through design, and (3) definition of new modules/components and their interfaces. A case study based on a family of refrigerators (including CAD models) is detailed in this paper to demonstrate the methodology. The proposed methodology supports both the reengineering of an existing family and can also be extended to benefit the early development stages when designing a new family of products.Copyright © 2006 by ASME
K S Lee - One of the best experts on this subject based on the ideXlab platform.
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modularity analysis and Commonality design a framework for the top down platform and product family design
International Journal of Production Research, 2010Co-Authors: Zhuo Liu, Y S Wong, K S LeeAbstract:With a highly fragmented market and increased competition, platform-based product family design is recognised as an effective method for constructing a product line that satisfies diverse customer demand while keeping design and production cost- and time-effective. Recognising the need for modularity and Commonality in platform development, this paper presents a systematic framework to assist in implementing top-down platform and product family design, which aims to achieve system-level modularity for variety generation, and rationalise the Commonality configuration for module instantiation. In the first phase of platform development, a robust and flexible product family architecture is constructed to accommodate variations by analysing the external varieties of the generic product architecture, and provide a modularity design space, wherein the design tasks are further decomposed into module instantiation. The second phase of detailed platform development aims to enhance Commonality in terms of engineeri...
Mark S Hillier - One of the best experts on this subject based on the ideXlab platform.
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the costs and benefits of Commonality in assemble to order systems with a q r policy for component replenishment
European Journal of Operational Research, 2002Co-Authors: Mark S HillierAbstract:Abstract In assemble-to-order systems, it has been shown that replacing a number of specific components by a smaller number of general-purpose, common components can reduce required safety stock levels due to the benefits of risk pooling. Previous research using single-period models has shown that even if the common components are somewhat more expensive than the unique components they replace, the benefits of risk pooling often outweigh the added purchasing costs. However, this has been shown often not to be the case with multiple-period models – in the long run, the added purchasing costs dominate the benefits of risk pooling. However, both single- and multiple-period models ignore one of the benefits of Commonality – order pooling. With Commonality, demand is pooled into a smaller number of components, reducing the required number of orders (or setups). After re-optimizing the order quantities and order intervals, both the ordering costs and cyclic carrying costs are reduced. This paper develops a model to consider the assemble-to-order environment where components are replenished according to a ( Q , r )-policy. Results show that order pooling is a significant benefit; in many cases it is much more important than the risk-pooling benefit. In contrast to multiple-period models, there is often a total cost benefit with Commonality, even when the common component is several percent more expensive than the unique components it replaces.
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using Commonality as backup safety stock
European Journal of Operational Research, 2002Co-Authors: Mark S HillierAbstract:Abstract It is well known that replacing several parts by a single common part can reduce required safety stock levels due to the benefits of risk pooling. It is not clear, however, if this reduces cost when the common part is more expensive than the parts it would replace. Recent analysis has shown that even when the common part is more expensive, it is often still worthwhile to employ in the single-period case. However, this is usually not true in the multiple-period case. This paper will consider the possibility of using both cheaper unique parts and a more expensive common part. Initial demand is met with the unique parts. The common part is used only as backup, when one or more of the unique parts stocks out. A multiple-period (or infinite-horizon) model is developed that considers purchasing, holding, and shortage costs. Results will show that the strategy of using Commonality as backup (CAB) dominates the strategies of no Commonality (NC) or pure Commonality (PC), and may still be worthwhile even if the common part is significantly more expensive than the unique parts.
Demis E Glasford - One of the best experts on this subject based on the ideXlab platform.
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the conflict of harmony intergroup contact Commonality and political solidarity between minority groups
Journal of Experimental Social Psychology, 2012Co-Authors: Demis E Glasford, Justine CalcagnoAbstract:Abstract Recent work on social change has complicated the picture regarding the influence of intergroup contact with majority groups on minority group members' perceptions of inequality and willingness to engage in social action. The present research investigated the ability of a Commonality-focused message to inspire political solidarity between minority groups, as well as the potential moderating role of intergroup contact with a majority group on the efficacy of this message for political solidarity. Across two experiments, as hypothesized, political solidarity from one minority group to another was highest within a Commonality condition, relative to group-boundaries salient and control conditions, which was explained by increases in Commonality perceptions. As expected, however, these effects were moderated by majority group contact, such that those with high levels of contact with majority group were less likely to show the Commonality-to-political solidarity relation. Implications for intergroup contact and more broadly social change are discussed.
