Ijodir 2010 / Vol.5 - n°2

Classifying high-tech capital goods innovation projects on the early stage of the development

Last Updated on Wednesday, 06 July 2011 19:20

Authors: K. Velloso Rodrigues, P. Truchot, T. Froehlicher, H. Boudaoud

Institutions: Converteam Rotating Machines (France), INPL (France), HEC University of Liege (Belgium)

 

Abstract: This article focuses on the study of high-tech capital goods innovation projects. As in every innovation project, there are a lot of risks and uncertainties involving the development of these projects. Our proposal is to categorize innovation projects in the field of high-tech capital goods at the very beginning of the project launch, i.e. at the early stage of the development. We use technological, market and leadership aspects as criteria for classification. We believe that identifying the elements that permit to classify innovation projects in different categories should allow a better assessment and management of the particular risks of each category. In addition, a classification in different categories could also help to build a strategy on respect to the management of innovation projects portfolio. We finish this article by presenting a test of our classification proposition on six innovation projects concerning real capital goods.

Keywords: innovation projects, capital goods, innovation projects classification.

 

A better coherence between design and production with the Total Inertial tolerancing

Last Updated on Wednesday, 06 July 2011 19:18

Authors: M. Pillet, D. Denimal

Institutions: Université de Savoie (France)

 

Abstract: Inertial tolerancing is a new concept of tolerancing which has done a first standardization in France NF XP E 04-008 (2009). The paper presents a generalization of the inertial tolerancing: total inertia. The goal of total inertial tolerancing is to use the information include in the numeric description of the product. The Total inertial tolerancing defined "consistent functional subset" and different coordinate systems. For each of these subsets, total inertia defined the maximum variability accepted (maximum inertia) from digital target. Inertia is the mean square deviation of the differences between the actual part and the target, measured in accordance with normal to the surface. Each functional subset will be identified by different colors. The purpose of the production is to produce parts with the least variability compared to the numerical shape. The production problem can be represented by two vectors: The vector of the deviations from the target on all measured points, and the vector of the control factors. The question is: what is the value to apply on each corrector to minimize the vector of deviations? A reply is given by the total inertial tolerancing of which the link between the maximum inertia and the production is strong. Thus, the problem consists into compute the pseudo-inverse matrix of the relation between the deviation and impact vectors. This pseudoinverse matrix allows minimizing the least squares deviation, in other words, minimizing the inertia. This paper presents an example of inertial tolerancing specification of a complex part and show how to adjust a production with its new approach. It shows how to manage easily different inertial tolerancing realized by a same tool.

Keywords: statistical tolerancing, inertial tolerancing, inertial process Control, 3D process control, numerical chain integrity.

 

Emotions and technological innovation adoption intention

Last Updated on Wednesday, 06 July 2011 19:12

Authors: J. Hoffmann, G. Roehrich, J-P. Mathieu

Institutions: SKEMA Business School (France), IAE Grenoble (France)

 

Abstract: The study of emotions in the innovation adoption process has received increased attention in the innovation and marketing literature. We explore the role of affect as an antecedent of utilitarian and hedonic benefits. The model was tested with a representative sample of the French on-line population composed of 1516 individuals. Results validate the role of affect as an antecedent of functional and hedonic benefits and show that their impact varies according to affect valence. Our paper presents one of the first empirical validations of emotion influence in the innovation adoption process.

Keywords: innovation adoption, emotion, affect, novelty degree

 

Formalization approach to early design synthesis

Last Updated on Wednesday, 06 July 2011 17:59

Authors: W. Brace, E. Coatanéa, H. Kauranne, M. Heiska

Institutions: Aalto University School of Science and Technology (Finland)

 

Abstract: This article introduces a formal early design synthesis and its corollary, function behaviour-structure, to an early design analysis and identification of concepts for complex systems. First, the article presents state of the art of design modelling frameworks and tools for dynamic system synthesis and behaviour modelling. Secondly, the key elements for function-based design synthesis and behaviour modelling are discussed, as well as the interest and actual limitations of the general architecture model applied to early design of complex systems. Finally, the article proposes an alternative approach in order to allow systematic design and to explore behaviours of functions and structures early in the development stage with the intention of future coding as a computational tool to further allow the automation of design process.

Keywords: function-based design, complex system, behaviour, design synthesis, early design, design automation.

 

Capitalizing and structuring design knowledge in an SME environment

Last Updated on Wednesday, 06 July 2011 18:00

Authors: A. A. Ammar, D. Scaravetti, J.-P. Nadeau

Institutions: Arts et Métiers ParisTech Bordeaux (France)

 

Abstract: Small companies can find it difficult to preserve their knowledge, and also to structure a design process. A design methodology is proposed, based on design knowledge reuse and suitable for developing new manufacturing processes in an SME context. This paper describes a knowledge structuring and capitalization method, where a functional description is applied. The purpose is to capitalize technical solutions and the components used to carry out a given function, and to build a knowledge base that could be reused when designing new manufacturing processes. In this way, the time spent on research into design concepts can be reduced. Components are identified using the Converter-Transmitter-Operator-Control classification, based on describing the functional flow path in terms of energy. Produced and induced effects associated with the components are highlighted, by identifying the relevant conjugate variables for the functional flows. The choice of solutions in the reuse phase is thus facilitated by considering these effects. In addition, a task decomposition tool has been developed to simplify the describing of existing manufacturing processes. Existing knowledge capitalization methods proved unsuitable for an SME context. Based on the proposed approach, we applied our capitalization method in an industrial context, with the processes used by our partner company, which had never previously capitalized its design knowledge.

Keywords: design knowledge capitalization, functional base, design methodology, SME, task analysis.