19th CIRP Design Conference – Competitive Design, 2009

Permanent URI for this collection

https://dspace.lib.cranfield.ac.uk/handle/1826/3539

Editors: Rajkumar Roy and Essam Shehab
Organised by: Cranfield University
Sponsored by: Mori Seiki – The Machine Tool Company
ISBN: 978-0-9557436-4-1

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Now showing 1 - 20 of 78

Open Access
A Study on Process Description Method for DFM Using Ontology
(Cranfield University Press, 2009-03-31) Hiekata, K.; Yamato, H.; Rajkumar Roy; Essam Shehab
A method to describe process and knowledge based on RDF which is an ontology description language and IDEF0 which is a formal process description format is proposed. Once knowledge of experienced engineers is embedded into the system the knowledge will be lost in the future. A production process is described in a proposed format similar to BOM and the process can be retrieved as a flow diagram to make the engineers to understand the product and process. Proposed method is applied to a simple production process of common sub-assembly of ships for evaluation.
Open Access
Competing in Engineering Design – the Role of Virtual Product Creation
(Cranfield University Press, 2009-03-31) Stark, R.; Krause, F. L.; Kind, C.; Rothenburg, U.; Müller, P.; Stöckert, H.; Rajkumar Roy; Essam Shehab
Product creation is facing the next level of fundamental changes. Global demands are growing substantially to achieve energy efficient and sustainable value creation networks for products, production and services without compromising traditional success factors such as time to market, cost and quality. To stay competitive within such an environment development partners in industry and public sectors will require new interplay solutions for engineering design execution, domain knowledge representation, expert competence utilization and digital assistance systems. This scenario offers the chance for virtual production creation solutions to become critical for the future by offering unique engineering capabilities which have not yet explored or deployed. The paper investigates key elements of modern virtual product creation – such as agile process execution, functional product modeling and context appropriate information management – towards their competitive role in satisfying increasing numbers of product requirements, in delivering robust systems integration and in ensuring true sustainable product lifecycle solutions.
Open Access
Web-based Collaborative Working Environment and Sustainable Furniture Design
(Cranfield University Press, 2009-03-31) Su, D.; Casamayor, J.; Rajkumar Roy; Essam Shehab
To meet the demand of online collaborative design, a Web-based Collaborative Working Environment (CWE) has been developed. An approach to enhance sustainable furniture design by utilizing the CWE is proposed. In this paper, the CWE framework is briefly presented, which consists of upperware, middleware and resource layers; then three key aspects of sustainable furniture design by utilizing the CWE are presented, including material and manufacturing processes selection, design for disassembly and damaged furniture return, followed by an example of damaged furniture return using the CWE to further illustrate the approach.
Open Access
How to Answer to the Challenges of Competencies Management in Collaborative Product Design?
(Cranfield University Press, 2009-03-31) Rose, B.; Robin, V.; Sperandio, S.; Rajkumar Roy; Essam Shehab
Collaboration is an essential factor of the design activities performance. This collaboration occurs between actors suited with varied expertises, coming from various trades and thus building a real network around the design project. It is advisable to manage with effectiveness the follow-up and the capitalization of information exchanged within this network. With the aim of increasing the performance of the design activity, the set up of competence management tools within the design teams is today necessary. However, these competencies management within a framework of collaborative design must answer various challenges. This article presents various proposals to answer them.
Open Access
Requirements Models for Collaborative Product Development
(Cranfield University Press, 2009-03-31) Stechert, C.; Franke, H. J.; Rajkumar Roy; Essam Shehab
Multidisciplinary product development in collaborative networks is a typical working condition for nowadays engineers. After describing the main deficits and dangers of such development situations a modelling approach using the Systems Modelling Language (SysML) is shown. The approach focuses on the generation of a requirements model as a basis for discussion and analysis of the real project aims. A short and simplified example from the field of parallel robots illustrates the approach.
Open Access
Modelling Product and Partners Network Architectures to Identify Hidden Dependencies
(Cranfield University Press, 2009-03-31) Zouggar, S.; Zolghadri, M.; Girard, P.; Rajkumar Roy; Essam Shehab
This paper explores mutual dependencies between partners of a New Product Design (NPD) project during the realization phase. It highlights bidirectional influences between components and partners. Linking product and network architectures is achieved through gBOMO (generalised Bill Of Materials and Operations) that allows expressing product components use and partners interventions in the network. We develop an approach to achieve building Dependency strength matrix. Analysing this matrix reveals obvious and hidden dependencies between partners which should be anticipated in early stages of the NPD project. The approach is illustrated through its application on an engine.
Open Access
Optimal Design of Planar Paraller Manipulators 3 RRR Through Lower Energy Consumption
(Cranfield University Press, 2009-03-31) Rojas-Salgado, A. A.; Ledezma-Rubio, Y. A.; Rajkumar Roy; Essam Shehab
In most existing studies, the solutions of planar parallel manipulators are restricted to a feasible region of solution. This research provides an optimal solution in link dimension of planar parallel manipulators to a defined trajectory and structure of the links, minimizing the mechanical energy of the manipulator.An algorithm will be obtained that allows adequate dimensioning of the manipulator for a specific task, by means of a passive reconfiguration. With this method most of the energy is used by the manipulator to execute a task, not for the manipulator’s movement. The process is illustrated with an example.
Open Access
Integrating Conventional System Views with Function-Behaviour-State Modelling
(Cranfield University Press, 2009-03-31) van Beek, T. J.; Tomiyama, Tetsuo; Rajkumar Roy; Essam Shehab
The main contribution of this paper lies in the observations done in industry resulting in an approach of integrating the Function-Behaviour-State (FBS) model with user workflow and interface models to create complex system overview. On one side of the spectrum it focuses on modelling the usage of the system, while on the other side it considers the modelling and managing of interfaces. The choice for both these views is based on an industrial experience with the clinical Magnetic Resonance (MR) imaging system to manage design complexity. The paper gives a real example of the approach.
Open Access
Grid Services for Multi-objective Optimisation
(Cranfield University Press, 2009-03-31) Goteng, Gokop; Tiwari, Ashutosh; Roy, Rajkumar; Rajkumar Roy; Essam Shehab
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 design experts to collaborate and share resources during design optimisation. Mathematical models are built using services by experts. These models are then directly linked to NSGA-II optimisation algorithm service and allow design experts to enter design parameters of their choice. A real-life case study-welded beam problem was used to validate the prototype. The results obtained showed a wider spread in the solution space compared to the results in literature.
Open Access
Automated Retrieval of Non-Engineering Domain Solutions to Engineering Problems
(Cranfield University Press, 2009-03-31) Stroble, J. K.; Stone, R. B.; McAdams, D. A.; Goeke, M. S.; Watkins, S. E.; Rajkumar Roy; Essam Shehab
Biological inspiration for engineering design has occurred through a variety of techniques such as creation and use of databases, keyword searches of biological information in natural-language format, prior knowledge of biology, and chance observations of nature. This research focuses on utilizing the reconciled Functional Basis function and flow terms to identify suitable biological inspiration for function based design. The organized search provides two levels of results: (1) associated with verb function only and (2) narrowed results associated with verb-noun (function-flow). A set of heuristics has been complied to promote efficient searching using this technique. An example for creating smart flooring is also presented and discussed.
Open Access
Structured Design Automation
(Cranfield University Press, 2009-03-31) van Tooren, M. J. L.; van der Elst, S. W. G.; Vermeulen, B.; Rajkumar Roy; Essam Shehab
The next stage in product development process evolution should be the automation of labour intensive repetitive steps. The design automation strategy should follow the trend of the supply chain management approach and deliver a flexible framework, allowing local specification and adjustment The proposed Adjoined Design Automation Process Trajectory (ADAPT) and associated tools provide such a framework. It covers the process from fuzzy front-end to the evaluation of automated processes. Considerable lead time and cost savings are shown for electrical component design and the feasibility of a Domain Specific Language approach is an important step towards acceptance of design automation.
Open Access
A Criteria-based Measure of Similarity between Product Functionalities
(Cranfield University Press, 2009-03-31) Politze, D. P.; Dierssen, S.; Rajkumar Roy; Essam Shehab
Today‘s customers request product functions and not components. A specific, modular description of the product functions and how they are realized becomes widely accepted to track how a product function is realized and to support future development. This will result in an additional, modular product structure from a functional viewpoint that is orthogonal to the physical product structure. Because the extent of each functional module has to be defined according to some kind of similarity between product functionalities this article introduces a corresponding concept an presents an approach how it can be assessed based on defined criteria.
Open Access
Dynamic Learning Organisations Supporting Knowledge Creation for Competitive and Integrated Product Design
(Cranfield University Press, 2009-03-31) Messnarz, R.; Spork, G.; Riel, A.; Tichkiewitch, S.; Rajkumar Roy; Essam Shehab
This paper shows that learning strategies and a structured approach to turn organisations into learning organisms have a major influence on the success of engineering programs in general, and on integrated design activities in particular. It points out the important relationship between dynamic learning organisations and the successful integrated development of complex mechatronic products using the topical and typical example of safety engineering in automotive development. It points out the key properties of learning organisations and reports about a way in which they have been successfully applied to the showcase example in close collaboration with a car manufacturing company.
Open Access
A Constraints Driven Product Lifecycle Management Framework
(Cranfield University Press, 2009-03-31) Le Duigou, Julien; Bernard, Alain; Perry, Nicolas; Delplace, Jean-Charles; Rajkumar Roy; Essam Shehab
The management of the product information during its lifecycle is a strategic issue for the industry. In this paper, a constraints driven framework is proposed to create and manage the product information. The method proposes to each actor that intervenes on the product life cycle to act on the quote, the development or the industrialisation of the product. From each phase of the product lifecycle, the extraction, capitalisation and reuse of fundamental knowledge is coordinated by a generic meta-model. This paper explains this approach through experiments in three different SMEs of the mechanical industry.
Open Access
Using a Process Knowledge Based CAD for a More Robust Response to Demands for Quotation
(Cranfield University Press, 2009-03-31) Toussaint, L.; Gomes, S.; Sagot, J. C.; Rajkumar Roy; Essam Shehab
Out of 100 hours of engineering work, only 20 are dedicated to real engineering and 80 are spent on what is considered routine work. To accelerate these routine processes, our research is based on methods and tools to capitalize and reuse knowledge in collaborative conception. To validate our research hypotheses, a series of experiments through a design process, with the aid of a Product Lifecycle Management (PLM) tool and a geometric modeler, have been implemented. This article defines a methodology for design and verification of a concept through the use of a knowledge capitalization and its application.
Open Access
Development of a Software Tool to Support System Lifecycle Management
(Cranfield University Press, 2009-03-31) Robin, V.; Brunel, S.; Zolghadri, M.; Girard, P.; Rajkumar Roy; Essam Shehab
In the extended enterprise context, many stakeholders act on the product during all its lifecycle. They influence the product development and managers have to be able to control all the activities and their interactions that are generating the different processes. They have also to manage each actor involved in the project during the product lifecycle. In this paper, propose an approach to identify, define and manage factors influencing product development. It is the System Lifecycle Management. PEGASE, a prototype of software to control design project, follow-up the system evolution and support decision-making, is also presented.
Open Access
Integrated design and PLM applications in aeronautics product development
(Cranfield University Press, 2009-03-31) van Wijk, D.; Eynard, B.; Troussier, N.; Belkadi, F.; Roucoules, L.; Ducellier, G.; Rajkumar Roy; Essam Shehab
Well known challenges in Aeronautic industry, namely reducing time to market, risks and development costs, could be reached thanks to innovative design methods supported by PLM technologies. Such methods are based on integrated design or collaborative engineering enabling close exchanges and cooperation between the project partners. The paper proposes a survey on integrated design methods and PLM technologies. It presents the development of a collaborative design platform, as part of SEINE project, which aims to improve partners’ cooperation in the French aeronautics supply chain. The paper also discusses how to include multiple expertises and integrated design in this collaborative platform.
Open Access
The Mechanisms of Construction of Generic Product Configuration with the Help of Business Object and Delay Differentiation
(Cranfield University Press, 2009-03-31) Izadpanah, S-H.; Gzara, L.; Tollenaere, M.; Rajkumar Roy; Essam Shehab
Product configuration has a central role in PLM application. The generic product configuration which factories the similarities between the product types, is used to facilitate the production by permitting delay differentiation. In this research, the role of business object in the construction of generic product configuration is studied. Then the rules used in the procedure of structuring the generic and specific configuration are presented. These rules are based on the” variability points” method. The concept is identifying the major variability’s of different products by finding the dependencies of their properties. The industrial case of the culinary articles is then studied.
Open Access
Interoperability and Standards: The Way for Innovative Design in Networked Working Environments
(Cranfield University Press, 2009-03-31) Agostinho, C.; Almeida, B.; Nuñez-Ariño, M. J.; Jardim-Gonçalves, R.; Rajkumar Roy; Essam Shehab
In today’s networked economy, strategic business partnerships and outsourcing has become the dominant paradigm where companies focus on core competencies and skills, as creative design, manufacturing, or selling. However, achieving seamless interoperability is an ongoing challenge these networks are facing, due to their distributed and heterogeneous nature. Part of the solution relies on adoption of standards for design and product data representation, but for sectors predominantly characterized by SMEs, such as the furniture sector, implementations need to be tailored to reduce costs. This paper recommends a set of best practices for the fast adoption of the ISO funStep standard modules and presents a framework that enables the usage of visualization data as a way to reduce costs in manufacturing and electronic catalogue design.
Open Access
Through-life integration using PLM
(Cranfield University, 2009-03-31) Gomez, M.; Baxter, David; Roy, Rajkumar; Kalta, M.; Rajkumar Roy; Essam Shehab
It is widely agreed that organisations would benefit from a PLM implementation founded on a standard structure that integrates through-life information and knowledge. Thus, this paper describes a PLM data structure that provides a standard repository of data through all the stages of the lifecycle: conception, manufacture, and operation. This structure classifies the data into project, product, process and resource, and has been implemented into the PDM system Teamcenter Engineering as part of a case study with a vacuum pump manufacturer. A methodology to implement a knowledge structure from an ontology editor into PDM system is also presented.