Butées Hydrodynamiques À Géométrie Fixe PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Butées Hydrodynamiques À Géométrie Fixe PDF full book. Access full book title Butées Hydrodynamiques À Géométrie Fixe by AHMED-S.. Download full books in PDF and EPUB format.
Book Description
L'influence des effets thermiques et des d formations sur les performances des but es hydrodynamiques g om trie fixe est analys e. Les tudes men es sur les but es hydrodynamiques g om trie fixe allient rarement les effets thermiques et les d formations. Apr s un rappel th orique de la lubrification thermohydrodynamique (THD), nous d crivons les m thodes de calculs des d formations m caniques et thermiques. L' tude thermo lastohydrodynamique (TEHD), qui prend en compte les effets thermiques locaux et les d formations, est r alis e sur une but e hydrodynamique g om trie fixe huit patins. Les champs de pression hydrodynamique et de temp rature sont obtenus par une m thode des diff rences finies et les champs des d placements des surfaces des patins et du collet sont obtenus l'aide de la m thode des l ments finis. Les d formations du collet sont galement prises en compte pour r soudre le probl me TEHD. L'influence des conditions de fonctionnement (charge appliqu e et vitesse de rotation) sur les diff rentes caract ristiques de la but e est galement analys e.
Book Description
L'influence des effets thermiques et des d formations sur les performances des but es hydrodynamiques g om trie fixe est analys e. Les tudes men es sur les but es hydrodynamiques g om trie fixe allient rarement les effets thermiques et les d formations. Apr s un rappel th orique de la lubrification thermohydrodynamique (THD), nous d crivons les m thodes de calculs des d formations m caniques et thermiques. L' tude thermo lastohydrodynamique (TEHD), qui prend en compte les effets thermiques locaux et les d formations, est r alis e sur une but e hydrodynamique g om trie fixe huit patins. Les champs de pression hydrodynamique et de temp rature sont obtenus par une m thode des diff rences finies et les champs des d placements des surfaces des patins et du collet sont obtenus l'aide de la m thode des l ments finis. Les d formations du collet sont galement prises en compte pour r soudre le probl me TEHD. L'influence des conditions de fonctionnement (charge appliqu e et vitesse de rotation) sur les diff rentes caract ristiques de la but e est galement analys e.
Author: Said Abdallah Ahmed Publisher: ISBN: Category : Languages : fr Pages : 193
Book Description
L'influence des effets thermiques et des déformations sur les performances des butées hydrodynamiques à géométrie fixe est analysée. Les études menées sur les butées hydrodynamiques à géométrie fixe allient rarement les effets thermiques et les déformations. Après un rappel théorique de la lubrification thermohydrodynamique (THD), nous décrivons les méthodes de calculs des déformations mécaniques et thermiques. L'étude thermoélastohydrodynamique (TEHD), qui prend en compte les effets thermiques locaux et les déformations, est réalisée sur une butée hydrodynamique à géométrie fixe à huit patins. Les champs de pression hydrodynamique et de température sont obtenus par une méthode des différences finies et les champs des déplacements des surfaces des patins et du collet sont obtenus à l'aide de la méthode des éléments finis. Les déformations du collet sont également prises en compte pour résoudre le problème TEHD. L'influence des conditions de fonctionnement (charge appliquée et vitesse de rotation) sur les différentes caractéristiques de la butée est également analysée. Il ressort que pour déterminer précisément les caractéristiques de fonctionnement d'une butée hydrodynamique à patins fixes, il ne faut pas négliger les déformations mécaniques du collet et en particulier lorsque la charge appliquée est élevée.
Author: Ingemar Larsson Publisher: ISBN: Category : Science Languages : en Pages : 232
Book Description
Current manuals and technical books on ground water hydrology contain relatively little specific information on ground water in hard rocks areas, that is mainly igneous and metamorphic rocks of the Precambrian shield areas. This work is intented to fill this gap and to inform of the possibilities of finding and developing water resources in hard rocks areas
Author: Catherine Kuzucuoğlu Publisher: Springer ISBN: 3030035158 Category : Science Languages : en Pages : 635
Book Description
This book on Turkish geomorphology offers location descriptions, based on their dynamics and evolution processes, including hydrology, tectonics, volcanism, slopes, coasts, ice/snow, and wind. It presents landforms as a result of evolution (Quaternary, Holocene, historic) and in relation to the elements determining and/or impacting this evolution (vegetation, soil, hydrology, geology, climate, sea level and human action) as well as the resulting landscapes. Richly illustrated with pictures from each site, including geomorphological maps and sections, it explains the risks associated with the geomorphological dynamics (on local and global scales), natural and/or cultural heritage (archaeology, prehistory, history, architectural specifications adapted to the landscape), as well as challenges for human society (endangered landscape, protection/conservation rules/statutes, posters/paintings.).
Author: Don Montague Publisher: Taylor & Francis ISBN: 9780419199106 Category : Architecture Languages : en Pages : 472
Book Description
This dual-language dictionary lists over 20,000 specialist terms in both French and English, covering architecture, building, engineering and property terms. It meets the needs of all building professionals working on projects overseas. It has been comprehensively researched and compiled to provide an invaluable reference source in an increasingly European marketplace.
Author: Austin M 1876-1956 Patterson Publisher: Scholar Select ISBN: 9781296567972 Category : Languages : en Pages : 340
Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: James Johnston Stoker Publisher: Courier Dover Publications ISBN: 0486839923 Category : Science Languages : en Pages : 593
Book Description
First published in 1957, this is a classic monograph in the area of applied mathematics. It offers a connected account of the mathematical theory of wave motion in a liquid with a free surface and subjected to gravitational and other forces, together with applications to a wide variety of concrete physical problems. A never-surpassed text, it remains of permanent value to a wide range of scientists and engineers concerned with problems in fluid mechanics. The four-part treatment begins with a presentation of the derivation of the basic hydrodynamic theory for non-viscous incompressible fluids and a description of the two principal approximate theories that form the basis for the rest of the book. The second section centers on the approximate theory that results from small-amplitude wave motions. A consideration of problems involving waves in shallow water follows, and the text concludes with a selection of problems solved in terms of the exact theory. Despite the diversity of its topics, this text offers a unified, readable, and largely self-contained treatment.
Author: Nina Hall Publisher: W. W. Norton & Company ISBN: 9780393312263 Category : Mathematics Languages : en Pages : 244
Book Description
Chaos theory is giving scientists fresh insights into all sorts of unruly phenomena-from dripping faucets to swinging pendulums, from the vagaries of the weather to the movements of the planets, from heart rhythms to gold futures. In this collection of front-line reports, edited for the general reader, internationally recognized experts such as Ian Stewart, Robert M. May, and Benoit Mandelbrot draw on the latest research to trace the roots of chaos in modern science and mathematics.
Author: Food and Agriculture Organization of the United Nations. Land and Water Development Division Publisher: Food & Agriculture Org. ISBN: 9789251034293 Category : Technology & Engineering Languages : en Pages : 136
Author: AHMED-S.
Author: AHMED-S.
Author: Said Abdallah Ahmed
Author: Ingemar Larsson
Author: Catherine Kuzucuoğlu
Author: Don Montague
Author: Austin M 1876-1956 Patterson
Author: James Johnston Stoker
Author: Nina Hall
Author: Richard Escadafal
Author: Food and Agriculture Organization of the United Nations. Land and Water Development Division