Download or read book DETERMINATION ET SIMULATION DES OPERATIONS D ASSEMBLAGE LORS DE LA CONCEPTION DE SYSTEMES MECANIQUES written by NICOLAS.. REJNERI and published by . This book was released on 2000 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: DANS UN CONTEXTE DE COMPETITIVITE MONDIALE, LES ENTREPRISES SE VOIENT CONTRAINTES DE MODERNISER TRES RAPIDEMENT LEURS OUTILS DE DEVELOPPEMENT ET DE PRODUCTION, AFIN D'ACCELERER LA MISE SUR LE MARCHE DE LEURS PRODUITS. AINSI, LES PROCESSUS DE CONCEPTION ET DE FABRICATION SONT AMENES A EVOLUER. LES TRAVAUX PRESENTES S'INSCRIVENT DANS UNE POLITIQUE D'OFFRE D'OUTILS METIERS DESTINES AUX CONCEPTEURS DE SYSTEMES MECANIQUES ET S'INTERESSENT PLUS PARTICULIEREMENT A L'ACTIVITE D'ASSEMBLAGE, UNE DES ETAPES IMPORTANTES DE LA FABRICATION. CES TRAVAUX PERMETTENT AU CONCEPTEUR AYANT DEFINI UN MECANISME D'ANALYSER DE MANIERE SEMI-AUTOMATIQUE SES POSSIBILITES DE MONTAGE ET DE DEMONTAGE. LA METHODE PROPOSEE S'APPUIE SUR UN MODELE GEOMETRIQUE DE TYPE BREP EXACT DE CHACUN DES COMPOSANTS DU MECANISME. LES CONTACTS SONT DETERMINES AUTOMATIQUEMENT. ILS PERMETTENT DE DEFINIR LES MOBILITES, C'EST-A-DIRE L'ENSEMBLE DES FAMILLES DE TRAJECTOIRES D'ASSEMBLAGE D'UN COMPOSANT VIS-A-VIS DE SES COMPOSANTS VOISINS A PARTIR DU FORMALISME DES QUATERNIONS. AFIN DE REDUIRE LA COMPLEXITE ALGORITHMIQUE DE GENERATION DES SEQUENCES D'ASSEMBLAGE DES INFORMATIONS A CARACTERE TECHNOLOGIQUE, SIMPLES ET MINIMALES, ATTACHEES AUX COMPOSANTS ET AUX CONTACTS DU MECANISME SONT PRISES EN COMPTE, AINSI L'UTILISATEUR PEUT LES SPECIFIER TRES TOT LORS DU PROCESSUS DE CONCEPTION. CES INFORMATIONS PERMETTENT DE CREER DES ASSOCIATIONS DE COMPOSANTS ET DE DIMINUER LE NOMBRE DE COMPOSANTS A ETUDIER. LE SEQUENCEMENT DES OPERATIONS D'ASSEMBLAGE EST REALISE A PARTIR DE CRITERES TECHNOLOGIQUES ET GEOMETRIQUES REGROUPES DANS UNE FONCTION OBJECTIF QUI EVALUE, ELIMINE ET SELECTIONNE LES COMPOSANTS CANDIDATS A L'ASSEMBLAGE. LES SEQUENCES SONT VALIDEES A L'AIDE D'UN PLANIFICATEUR AFIN DE POUVOIR EXTRAIRE UN COMPOSANT D'UN ENVIRONNEMENT ENCOMBRE. UNE MAQUETTE INFORMATIQUE EST EGALEMENT PRESENTEE AFIN DE VALIDER L'APPROCHE PROPOSEE.

Download or read book Advances in Production Management Systems Competitive Manufacturing for Innovative Products and Services written by Christos Emmanouilidis and published by Springer. This book was released on 2013-08-13 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two volumes IFIP AICT 397 and 398 constitute the thoroughly refereed post-conference proceedings of the International IFIP WG 5.7 Conference on Advances in Production Management Systems, APMS 2012, held in Rhodes, Greece, in September 2012. The 182 revised full papers were carefully reviewed and selected for inclusion in the two volumes. They are organized in 6 parts: sustainability; design, manufacturing and production management; human factors, learning and innovation; ICT and emerging technologies in production management; product and asset lifecycle management; and services, supply chains and operations.

Download or read book Design and Modeling of Mechanical Systems written by Mohamed Haddar and published by Springer Science & Business Media. This book was released on 2013-03-12 with total page 653 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 5th International Congress on Design and Modeling of Mechanical Systems (CMSM) was held in Djerba, Tunisia on March 25-27, 2013 and followed four previous successful editions, which brought together international experts in the fields of design and modeling of mechanical systems, thus contributing to the exchange of information and skills and leading to a considerable progress in research among the participating teams. The fifth edition of the congress (CMSM ́2013), organized by the Unit of Mechanics, Modeling and Manufacturing (U2MP) of the National School of Engineers of Sfax, Tunisia, the Mechanical Engineering Laboratory (MBL) of the National School of Engineers of Monastir, Tunisia and the Mechanics Laboratory of Sousse (LMS) of the National School of Engineers of Sousse, Tunisia, saw a significant increase of the international participation. This edition brought together nearly 300 attendees who exposed their work on the following topics: mechatronics and robotics, dynamics of mechanical systems, fluid structure interaction and vibroacoustics, modeling and analysis of materials and structures, design and manufacturing of mechanical systems. This book is the proceedings of CMSM ́2013 and contains a careful selection of high quality contributions, which were exposed during various sessions of the congress. The original articles presented here provide an overview of recent research advancements accomplished in the field mechanical engineering.

Download or read book Proceedings of the ASME Design Engineering Technical Conferences written by and published by . This book was released on 2001 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stereoscopic Displays and Virtual Reality Systems written by and published by . This book was released on 2005 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Simulation Numerique dans le Processus de Conception de Systemes Mecaniques written by and published by Ed. Techniques Ingénieur. This book was released on with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mod lisation cin matique des mobilit s de composants pour des op rations d assemblage et de d sassemblage written by Robert-Eugen Iacob and published by . This book was released on 2010 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: La conception assistée par ordinateur (CAO) a été l'un des domaines de recherche fondamental dans la conception automatisée pendant de nombreuses années. Les centres d'intérêt principaux sont les processus exigés pour concevoir différentes pièces, pour simuler leur comportement et pour les inspecter. Le module d'ensemble, qui adresse actuellement le produit entier, par comparaison ; est beaucoup moins étudié et un des processus peu compris dans la conception, sachant que presque tous les logiciels de CAO sont orientés vers les pièces seules. Afin d'offrir un outil pour l'analyse du modèle de produit cette recherche se concentre sur la simulation des opérations d'assemblage et de désassemblage (A/D), une plateforme de simulation étant proposée. Des simulations d'A/D peuvent être effectuées de manière automatisées ou interactives utilisant le matériel informatique standard ou par des simulations immersives en temps réel. Par conséquent, la plateforme proposée est basée sur un nouveau type de processus de simulation adressant jusqu'à deux types de représentations de forme (B-Rep NURBS et polydrique). Cet environnement peut aider les concepteurs pour réaliser une analyse satisfaisante d'ensembles rapidement et peut réduire le temps du développement de produits. Un autre bénéfice de ce travail est la capacité de produire des modèles et des traitements qui améliorent l'intégration des modèles d'assemblages dans des environnements immersifs avec les modèles haptiques et visuels requis. En plus, un opérateur spécifique qui produit des contraintes cinématiques dans le voisinage des configurations de contact est proposé pour déterminer à tout moment les mouvements valides entre les composants. Ainsi, la complexité des algorithmes de détection de collision dans les environnements de simulation en temps réel est réduite. Cette opération est basée sur le modèle mathématique et sur une représentation qui offre la possibilité de décrire toutes les combinaisons valides des phases de montage et de démontage d'un produit.

Download or read book M thodologies de simulation d assemblage d sassemblage de composants flexibles written by Alexei Mikchevitch and published by . This book was released on 2004 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: Il est important, pour le développement rapide et à moindre coût d'un produit, de considérer différentes contraintes liées à la conception, l'assemblage/désassemblage (AlD), l'usinage, l'ergonomie, etc. L'utilisation des outils comme les systèmes de réalité virtuelle (RV) donn une nouvelle dimension en terme de développement efficace du produit. Cette thèse propose d'appliquer les technologies de RV à l'étude/optimisation des systèmes mécaniques complexes et, en particulier, à la simulation d'ND de composants flexibles. Afin de tenir compte d'un comportement complexe de ces pièces, une telle simulation est basée sur leur modélisation mécanique. Le modèle nonlinéaire de poutres flexibles est utilisé, adapté à des spécificités de la RV, étudié et intégré dans un démonstrateur de simulation. Une telle modélisation permet de générer des informations réalistes (efforts, déformations, trajectoires d'AlD, ...) et de les utiliser dans l'étude/évaluation adéquate et rapide des opérations d'AID en se basant sur la méthodologie proposée. Cette méthodologie tient compte des spécificités dues à la simulation mécanique temps réel, à la caractérisation des propriétés du matériau, aux interfaces de RV, aux problèmes des modèles CAO. Ainsi, les problèmes de stabilité numérique et de recherche rapide de solutions adéquates, la validation expérimentale, les contraintes d'interfaçage en RV, la caractérisation d'AID à travers des expérimentations physiques et numériques, etc sont considérés dans ce mémoire. De nombreux tests et exemples montrent l'intérêt de la démarche proposée vis-à-vis des besoins industriels.

Download or read book M thodologies de simulation d assemblage d sassemblage de composants flexibles written by Alexei Mikchevitch and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Il est important, pour le développement rapide et à moindre coût d'un produit, de considérer différentes contraintes liées à la conception, l'assemblage/désassemblage (AlD), l'usinage, l'ergonomie, etc. L'utilisation des outils comme les systèmes de réalité virtuelle (RV) donn une nouvelle dimension en terme de développement efficace du produit. Cette thèse propose d'appliquer les technologies de RV à l'étude/optimisation des systèmes mécaniques complexes et, en particulier, à la simulation d'ND de composants flexibles. Afin de tenir compte d'un comportement complexe de ces pièces, une telle simulation est basée sur leur modélisation mécanique. Le modèle nonlinéaire de poutres flexibles est utilisé, adapté à des spécificités de la RV, étudié et intégré dans un démonstrateur de simulation. Une telle modélisation permet de générer des informations réalistes (efforts, déformations, trajectoires d'AlD, ...) et de les utiliser dans l'étude/évaluation adéquate et rapide des opérations d'AID en se basant sur la méthodologie proposée. Cette méthodologie tient compte des spécificités dues à la simulation mécanique temps réel, à la caractérisation des propriétés du matériau, aux interfaces de RV, aux problèmes des modèles CAO. Ainsi, les problèmes de stabilité numérique et de recherche rapide de solutions adéquates, la validation expérimentale, les contraintes d'interfaçage en RV, la caractérisation d'AID à travers des expérimentations physiques et numériques, etc sont considérés dans ce mémoire. De nombreux tests et exemples montrent l'intérêt de la démarche proposée vis-à-vis des besoins industriels.

Download or read book Product Life Cycle Management written by Max Giordano and published by John Wiley & Sons. This book was released on 2012-12-17 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a comprehensive view of the most recent major international research in the field of tolerancing, and is an excellent resource for anyone interested in Computer Aided Tolerating. It is organized into 4 parts. Part 1 focuses on the more general problems of tolerance analysis and synthesis, for tolerancing in mechanical design and manufacturing processes. Part 2 specifically highlights the simulation of assembly with defects, and the influence of tolerances on the quality of the assembly. Part 3 deals with measurement aspects, and quality control throughout the life cycle. Different measurement technologies and methods for estimating uncertainty are considered. In Part 4, different aspects of tolerancing and their interactions are explored, from the definition of functional requirement to measurement processes in a PLM approach.

Download or read book Integrated Design and Manufacturing in Mechanical Engineering written by Patrick Chedmail and published by Springer. This book was released on 2012-11-05 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the selected papers of the first I.D.M.M.E. conference on 'Integrated Design and Manufacturing in Mechanical Engineering', held in Nantes from 15-17 April 1996. Its objective was to discuss the questions related to the definition of the optimal design and manufacturing processes and to their integration through coherent methodologies in adapted environments. The initiative of the Conference and the organization thereof, is mainly due to the efforts of the french PRIMECA group (Pool of Computer Resources for Mechanics) started eight years ago. We were able to attract the internationru community with the support of the International Institution for Production Engineering Research (C.I.R.P.). The conference brought together two hundred and fifty specialists from around the world. About ninety papers and twenty posters were presented covering three main topics : optimization and evaluation of the product design process, optimization and evaluation of the manufacturing systems and methodological aspects.

Download or read book Canadiana written by and published by . This book was released on 1989 with total page 1162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Adhesion Between Polymers and Concrete Adh sion Entre Polym res Et B ton written by H. R. Sasse and published by Springer. This book was released on 1986 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preface Adhesion is a phenomenon architects and civil engineers are not very familiar with. In other disciplines knowledge about surface properties and the background of bonding energies is also far from satisfactory; nevertheless there are many important· applications in concrete engineering, where adhesion is necessary for success and durability. These include: - coating and painting - repair of concrete surfaces - bonding of fresh to old concrete - crack injection - glueing of precast elements - glueing of steel to concrete, etc. In 1981 RILEM established the technical committee 52-RAC 'Resin Adherence to Concrete'. The main aims of the committee's work were - to collect research results and practical experiences - to initiate and coordinate research programs - to develop, on a scientific base, test methods for field and for laboratory purposes. One of the results of the committee's work is a state-of-the-art report, which will be presented orally as a General Report at the International Symposium ISAP '86, and will be printed either in the RILEM journal Materials and Structures or separately. Several test recommendations have been elaborated and will be prepared as drafts for the participants ofISAP '86. These are: - direct tensile test - pull-off test - direct shear test - slant shear test - four-point bending test - dynamic loading test - thermal compatibility test (two versions) - injectibility test.

Download or read book Painted Love written by Hollis Clayson and published by Getty Publications. This book was released on 2003-10-30 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this engrossing book, Hollis Clayson provides the first description and analysis of French artistic interest in women prostitutes, examining how the subject was treated in the art of the 1870s and 1880s by such avant-garde painters as Cézanne, Degas, Manet, and Renoir, as well as by the academic and low-brow painters who were their contemporaries. Clayson not only illuminates the imagery of prostitution-with its contradictory connotations of disgust and fascination-but also tackles the issues and problems relevant to women and men in a patriarchal society. She discusses the conspicuous sexual commerce during this era and the resulting public panic about the deterioration of social life and civilized mores. She describes the system that evolved out of regulating prostitutes and the subsequent rise of clandestine prostitutes who escaped police regulation and who were condemned both for blurring social boundaries and for spreading sexual licentiousness among their moral and social superiors. Clayson argues that the subject of covert prostitution was especially attractive to vanguard painters because it exemplified the commercialization and the ambiguity of modern life.

Download or read book Terra 2008 written by Leslie Rainer and published by Getty Publications. This book was released on 2011-06-14 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthen architecture constitutes one of the most diverse forms of cultural heritage and one of the most challenging to preserve. It dates from all periods and is found on all continents but is particularly prevalent in Africa, where it has been a building tradition for centuries. Sites range from ancestral cities in Mali to the palaces of Abomey in Benin, from monuments and mosques in Iran and Buddhist temples on the Silk Road to Spanish missions in California. This volume's sixty-four papers address such themes as earthen architecture in Mali, the conservation of living sites, local knowledge systems and intangible aspects, seismic and other natural forces, the conservation and management of archaeological sites, research advances, and training.

Download or read book Surface Tension in Microsystems written by Pierre Lambert and published by Springer Science & Business Media. This book was released on 2013-08-31 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes how surface tension effects can be used by engineers to provide mechanical functions in miniaturized products (1 mm). Even if precursors of this field such as Jurin or Laplace already date back to the 18th century, describing surface tension effects from a mechanical perspective is very recent.brThe originality of this book is to consider the effects of capillary bridges on solids, including forces and torques exerted both statically and dynamically by the liquid along the 6 degrees-of-freedom.brIt provides a comprehensive approach to various applications, such as capillary adhesion (axial force), centering force in packaging and micro-assembly (lateral force) and recent developments such as a capillary motor (torque).

Download or read book Faecal Sludge Management written by Linda Strande and published by IWA Publishing. This book was released on 2014-08-15 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is estimated that literally billions of residents in urban and peri-urban areas of Africa, Asia, and Latin America are served by onsite sanitation systems (e.g. various types of latrines and septic tanks). Until recently, the management of faecal sludge from these onsite systems has been grossly neglected, partially as a result of them being considered temporary solutions until sewer-based systems could be implemented. However, the perception of onsite or decentralized sanitation technologies for urban areas is gradually changing, and is increasingly being considered as long-term, sustainable options in urban areas, especially in low- and middle-income countries that lack sewer infrastructures. This is the first book dedicated to faecal sludge management. It compiles the current state of knowledge of the rapidly evolving field of faecal sludge management, and presents an integrated approach that includes technology, management, and planning based on Sandecs 20 years of experience in the field. Faecal Sludge Management: Systems Approach for Implementation and Operation addresses the organization of the entire faecal sludge management service chain, from the collection and transport of sludge, and the current state of knowledge of treatment options, to the final end use or disposal of treated sludge. The book also presents important factors to consider when evaluating and upscaling new treatment technology options. The book is designed for undergraduate and graduate students, and engineers and practitioners in the field who have some basic knowledge of environmental and/or wastewater engineering.