Lionel Roucoules

The PPO design model with respect to digital enterprise technologies among product life cycle

The product–process–organization model, PPO, provides efficient assistance to collaboration during innovative design project. This model is dedicated to the development phase of new products for which product architecture is indeed not a priori defined and tasks will be set dynamically during the product development process. In an integrated design perspective, product behaviours must also be forecasted; that is achieved by assessing PPO behaviours. This paper presents the PPO model and the open IPPOP framework that instantiates this model. It investigates how such a model with such a digital platform may interact with other services used to assist other phases of the product life cycle.

Review on Application of Data Mining in Product Design and Manufacturing

Implementation of data mining technology in some areas such as banking, finance, marketing, insurance, health care, etc. has given very good results. However, applications of data mining in product design and manufacturing are not as broad as expected and many challenges are still ahead. This work analyzes the reasons for the limitation of data mining application in manufacturing industry and focuses on reviewing the state-of-the-art of the applications of data mining in product design and manufacturing. Some points of views are also discussed and finally this paper is concluded.

Process planning as an integration of knowledge in the detailed design phase

This paper deals with knowledge integration during product design. An integrated design approach is presented based on two phases: The initial design and the detailed design phase. Those two phases must be as concurrent as possible. Nevertheless, minimal structural definition of the product is necessary prior to manufacturing process planning as part of the detailed design phase. During the initial design phase, the structural technology is chosen according to the product main functions. This phase aims at defining minimal functional data that are used as a starting point for other knowledge integration in the detailed design phase. During the detailed design, other people that are actively involved in the product development process evaluate the product with their own point of view and their own tools. This paper presents the use and the limits of two features-based tools for process planning knowledge integration: a What-if system and a CAPP system. Both tools make an analysis of the product. As a result of these analyses, designers add new data to the product definition. Thus, the design solution is progressively defined. A Cooperative Design Modeller supports this knowledge integration and gathers the data provided by the What-if and the CAPP systems.

Case Study of a MEMS Switch Supported by a FBS and DFM Framework

This paper presents the work on a collaborative and integrated design approach that supports the product solution emergence by least commitment. That design framework is based on several engineering activities that must be achieved concurrently. The first depicted activity aims at mapping product requirements to product breakdown based on FBS approach. The second one supports manufacturing information synthesis during the design process (i.e. DFM). The second part of the article presents the design of a Micro Electro Mechanical System switch to illustrate the whole design method. That example illustrates the information modelling previously presented and shows how the CAD model emerges from information synthesis during the design process. That example also allows the consolidation of the product modelling. In a second time, it shows that the method fits to the design of micro product and provides to the designers early behavioural analyses.

Manufacturing Process Selection and Integration in Product Design

During product development process, several tasks have to be carried out in order to progressively map a set of functions (requirements) to a technological structure. This structure is then designed taking into account a certain number of constraints related to the whole product life cycle (materials, structural analysis, recycling, etc.). In such a context of concurrent engineering this paper focuses on the manufacturing constraints that should be analysed and integrated (synthesis) in the product development. The results then describe what could be the methodology and the model to do so. This work is strongly linked to already-accepted concepts of the scientific community. Indeed, some results on manufacturing process selection exist. Nevertheless they can only be applied once the product form features totally identified. As far as integration is concerned, a lot of product models have also already been proposed in the scientific community, our proposal addresses an evolution of those models toward our manufacturing integration problem. A common model has been specified to link product modelling and manufacturing knowledge modelling. This model is based on an evolution of skin and skeleton concepts. Those concepts have been introduced in many papers for specific points of view modelling but not ever used for manufacturing process selection and integration. Those concepts have been linked to a methodology of selection and integration that can be used at different stages of design process as soon as the first technological choices are realised. Several steps of the proposed methodology are based on manufacturing information management. A structure of this information has then been specified. First, multiple points of view information (functional, structural, structural analysis, etc.), and then manufacturing process information are mapped to the common concepts (skin and skeleton) in order to couple the proposed design solutions to available ones for manufacture.

Beyond geometric CAD system: implementation of STEP translator for multiple-views product modeller

A new kind of Computer-Aided Design (CAD) system is proposed to support the integration and collaboration in Concurrent Engineering (CE). The kernel of the system is the Co-operative Design Modeller (CoDeMo), which supports the multiple-views knowledge integration in the product definition. The enhancement of CoDeMo and CAx systems interoperability is required for achieving a consistent design support environment. This paper mainly deals with CoDeMo interoperability capabilities based on STEP AP203 Edition 2 standard. The aim is to show the benefit and efficiency of STEP-based application in the integration approach of CoDeMo and CAx systems. The architecture, development and application of the STEP pre-processor are described, respectively. A case study is given to illustrate the translation process of product data and to demonstrate the interest of the STEP translator.

Analysis of data quality and information quality problems in digital manufacturing

This work focuses on the increasing importance of data quality in organizations, especially in digital manufacturing companies. The paper firstly reviews related works in field of data quality, including definition, dimensions, measurement and assessment, and improvement of data quality. Then, by taking the digital manufacturing as research object, the different information roles, information manufacturing processes, influential factors of information quality, and the transformation levels and paths of the data/information quality in digital manufacturing companies are analyzed. Finally an approach for the diagnosis, control and improvement of data/information quality in digital manufacturing companies, which is the basis for further works, is proposed.

An adaptive approach to failure modes and effects analysis for Computer-Aided Inspection Planning

In robust design, the principle is to improve product quality minimizing the impacts of variations. Variability depends strongly on the set of explicit and implicit decisions taken during product design, selection of methods, processes and resources. This paper presents a new approach to decision making for inspection planning. The proposed approach requirements are then emphasized. As well the necessity of quality management tools integration in decision making is concluded. Literature review highlights that each already existent quality tools satisfies partially these requirements. Among these latter FMEA is considered to be flexible and apt enough to be adapted to CAIP. Despite, improving points to FMEA are discussed and required modifications and future works are then proposed.

Design Knowledge for Decision-Making Process in a DFX Product Design Approach

Product design is a knowledge-intensive process and involves large quantities of decisions. The efficiency and effectiveness of these decisions depend on the provision of many kinds of related knowledge to designers from different sources throughout the product lifecycle. First, this paper makes a literature review about the related works on product design knowledge and classifies the product design knowledge into three categories, namely product, process and product support knowledge. Secondly, the knowledge needs of product design decisions are analyzed. The decisions made during the design process have a critical impact both on the design solution obtained but also on the design process itself. These decisions are of many different types and made by different kinds of engineers and managers. This work illustrates decision-making in product design and some related works are reviewed. The decision-making during the product design process is analyzed and classified into two main categories, namely organizational and technical decisions, which are illustrated in a three dimensional figure. Finally, some conclusions and future works are discussed.

Manufacturing Quality Information Classification based on Group Technology and Quality BOM

Finding information from manufacturing quality information to support product design decisions is necessary for improving design quality. Based on the review of group technology and quality bill of material, the classification and coding of manufacturing quality information is proposed in which combines the manufacturing quality information families with part families. Then the application of classified and coded manufacturing quality information is illustrated for further use to support design decisions