96 research outputs found
Vers de nouvelles approches pour la capitalisation des modèles pour la simulation et l'optimisation : l'expérience du projet DIMOCODE
National audienceCe papier permet d'expliciter les fondements théoriques qui ont amené aux spécifications d'un nouveau type de plate-forme collaborative sur Internet, pour la capitalisation et la diffusion de modèles numériques et la mise en relation des savoirs-faire autour de ces modèles numériques. Le premier prototype, faisant l'objet du projet DIMOCODE soutenu par le CNRS, est détaill
Mathematization of experts knowledge: example of part orientation in additive manufacturing
The use of expert knowledge by manufacturing companies to support everyday activities has become an emerging practice thanks to the new knowledge management tools. A big set of knowledge is available in the organizations but its profitable use to solve problems and assist decision making is still a challenge. This is the case of CAM operations or preprocessing steps for which various works have been led to involve experts’ knowledge in the decision-making based on qualitative principles. However, so far, there is no methodology to the quantitative representation of that knowledge for more assistance. This paper introduces an approach for the conversion of knowledge into quantitative mathematical models. The main idea is to go from elicitation data in the form of action rules to simple unitary mathematical images; here desirability functions. The whole process carried out to extract the useful information that help building the desirability functions is exposed and different useful mathematical considerations are proposed. The resulting methodology identifies the categories of concepts in action rules and translate them into codified action rules. Then, through a mathematization process, the desirability functions are built. In short, this new approach allows evaluating the satisfaction level of the rules prescribed by the experts. As an illustration, the model is applied to action rules for CAM operations in additive manufacturing and more precisely to the definition of part orientation. This has shown the robustness of the methodology used and that it is possible to translate elicitation data into mathematical functions operable in computation algorithms.ANR-17-CE10-0008 : COFF
Integration of experimental and computational analysis in the product design and proposals for the sharing of technical knowledge
International audienc
Keeping Traces of Design Rationale through Intermediary Objects
International audienc
Towards A Scenario-Based Open Innovation Platform
International audienceThis paper investigates the possibility of a scenario-based design approach to increase the efficiency of an existing open innovation platform. This platform shows a great potential for shuffling ideas, but the users report some difficulties in making the design process convergent. From the detailed analysis of a new product design case, we first make a diagnosis of the current platform in order to explain the ill-convergence issue. We then focus on one of the identified weaknesses of the platform: the lack of a shared vision of the needs between the stakeholders, and we propose to improve the existing design process by a new approach based on a scenario-based design framework
Keeping Traces of Design Rationale through Intermediary Objects
International audienc
Vers une méthode d'analyse de la dynamique des connaissances en conception collaborative de produits industriels
National audienc
Implementation of a light knowledge sharing tool in engineering design
12 pagesInternational audienceThis paper presents a part of an approach of implementing knowledge management within small and medium sized enterprises (SMEs). This approach proceeds iteratively (proposal for a solution, experience feedback, improvement) and takes place within an industrial partner's calculation office. A first part of this work consisted in the proposal of a knowledge management system (KALIS) that can meet the calculation office requirements. The main assumption of the approach is that intensive collaboration between engineers will support knowledge sharing, thus increasing the efficiency of the calculation projects. The paper investigates integration and acceptance issues of knowledge management systems. A litterature review points out that the main barriers are the codification costs, the integration of the system within engineering activities and the management of quality regarding the content of knowledge management system. Then, propositions are given to overcome these barriers in the form of a progressive knowledge formalisation based on collaboration between engineers. The way of integrating KALIS within the activities of the company is also an important aspect of the effective acceptance. Finally, a feedback of the KALIS use within the company leads to propose the firsts steps towards a maturity assessment framework facing the quality improvement issue of the system' content
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