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Author : Wissem Maazoun
Publisher :
ISBN 13 : 9781369486490
Total Pages : 140 pages
Book Rating : 4.4/5 (864 download)
Download or read book Conception et analyse d'un système d'optimisation de plans de vol pour les avions written by Wissem Maazoun and published by . This book was released on 2015 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Laurent Saintis
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (115 download)
Download or read book Modélisation et évaluation des performances de disponibilité d'un avion dans un contexte opérationnel lors des phases de conception written by Laurent Saintis and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce rapport de thèse traite de la modélisation et de l'évaluation de la disponibilité d'un avion en phase de conception. Ce problème est crucial pour les concepteurs aéronautiques car il leur permet d'évaluer des indicateurs de disponibilité afin d'améliorer la conception des systèmes et d'optimiser le soutien de l'avion. Nous avons formalisé le processus dynamique des incidents techniques et leurs effets sur la maintenance corrective lors de l'exploitation de l'avion par une compagnie aérienne. Dans le contexte d'une mission, définie par une séquence de cycles de vol, les méthodes classiques de fiabilité des systèmes ne sont pas utilisables en respectant les contraintes industrielles de temps de calcul. Basée sur des développements analytiques, nous introduisons une méthodologie qui fournit un algorithme efficace de calcul des bornes des indicateurs de disponibilité. Finalement, nous montrons l'utilité de notre approche par des expérimentations inspirées de cas réels de systèmes d'un avion.
Author : Caroline Dietrich
Publisher :
ISBN 13 : 9781369393279
Total Pages : 177 pages
Book Rating : 4.3/5 (932 download)
Download or read book Création d'un modèle générique d'avions long-courriers pour l'optimisation des trajectoires aériennes commerciales written by Caroline Dietrich and published by . This book was released on 2014 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Cécile Badufle
Publisher :
ISBN 13 :
Total Pages : 247 pages
Book Rating : 4.:/5 (496 download)
Download or read book Définition conceptuelle d'avions written by Cécile Badufle and published by . This book was released on 2007 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: La conception d'avions au stade avant-projet consiste à déterminer les principales caractéristiques d'un avion répondant à un cahier des charges donné. Ces études peuvent être résumées par des problèmes d'optimisation globale sous contraintes avec typiquement un millier de paramètres et presque autant de contraintes. Les contraintes expriment la faisabilité physique ainsi que le cahier des charges à respecter, et les objectifs sont des performances de l'avion guidées par des études de marché. De plus, le conception d'avions est un problème d'optimisation multicritère du fait de la présence de fonctions objectifs antagonistes.L'objectif de cette étude est d'introduire de nouvelles méthodes mathématiques qui peuvent être utiles dans un outil de dimensionnement avant-projet pour résoudre le problème d'optimisation d'une configuration d'avion. Nous avons contribué à l'amélioration des méthodes d'optimisation qui sont couramment utilisées au département des Avant-Projets d'Airbus. En utilisant les algorithmes génétiques, nous avons rendu le processus d'optimisation monocritère plus robuste. Ensuite, nous avons introduit des méthodes d'optimisation multicritère car nous avions plusieurs critères conflictuels à considérer. Comme les temps de calcul sont devenus importants, nous avons décidé de substituer au modèle d'avion un modèle approché. Nous avons implémenté les fonctions à base radiale pour approcher les contraintes et les fonctions objectifs. Enfin, nous avons propagé les incertitudes du modèle pour estimer la robustesse des résultats de l'optimisation et nous avons proposé un aboutissement possible de l'intégration de ces techniques~: donner aux ingénieurs une perception opérationnelle de l'espace de définition.
Author : Laure Jaeger
Publisher :
ISBN 13 :
Total Pages : 214 pages
Book Rating : 4.:/5 (892 download)
Download or read book Optimisation multidisciplinaire sous incertitude en phase conceptuelle avion written by Laure Jaeger and published by . This book was released on 2013 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ces travaux de recherche concernent l'optimisation multidisciplinaire déployée lors de la conception de systèmes complexes. Ils sont tout particulièrement centrés sur la conception avion. À ce stade de la conception les incertitudes engendrées sont significatives. De nouvelles méthodes efficaces de modélisation et de propagation des incertitudes sont donc proposées afin de concevoir un système fiable et robuste. Elles font appel à des techniques de modélisation adaptatives, à des algorithmes d'optimisation classiques et à des techniques basées sur l'intelligence artificielle (systèmes multi-agent).
Author : Pasquale M. Sforza
Publisher : Elsevier
ISBN 13 : 0124199771
Total Pages : 623 pages
Book Rating : 4.1/5 (241 download)
Download or read book Commercial Airplane Design Principles written by Pasquale M. Sforza and published by Elsevier. This book was released on 2014-01-31 with total page 623 pages. Available in PDF, EPUB and Kindle. Book excerpt: Commercial Airplane Design Principles is a succinct, focused text covering all the information required at the preliminary stage of aircraft design: initial sizing and weight estimation, fuselage design, engine selection, aerodynamic analysis, stability and control, drag estimation, performance analysis, and economic analysis. The text places emphasis on making informed choices from an array of competing options, and developing the confidence to do so. - Shows the use of standard, empirical, and classical methods in support of the design process - Explains the preparation of a professional quality design report - Provides a sample outline of a design report - Can be used in conjunction with Sforza, Manned Spacecraft Design Principles to form a complete course in Aircraft/Spacecraft Design
Author : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development
Publisher :
ISBN 13 :
Total Pages : 218 pages
Book Rating : 4.3/5 (91 download)
Download or read book AGARD Conference Proceedings written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development and published by . This book was released on 1989 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ravindra V. Jategaonkar
Publisher : AIAA (American Institute of Aeronautics & Astronautics)
ISBN 13 :
Total Pages : 568 pages
Book Rating : 4.3/5 (91 download)
Download or read book Flight Vehicle System Identification written by Ravindra V. Jategaonkar and published by AIAA (American Institute of Aeronautics & Astronautics). This book was released on 2006 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: This valuable volume offers a systematic approach to flight vehicle system identification and exhaustively covers the time domain methodology. It addresses in detail the theoretical and practical aspects of various parameter estimation methods, including those in the stochastic framework and focusing on nonlinear models, cost functions, optimization methods, and residual analysis. A pragmatic and balanced account of pros and cons in each case is provided. The book also presents data gathering and model validation, and covers both large-scale systems and high-fidelity modeling. Real world problems dealing with a variety of flight vehicle applications are addressed and solutions are provided. Examples encompass such problems as estimation of aerodynamics, stability, and control derivatives from flight data, flight path reconstruction, nonlinearities in control surface effectiveness, stall hysteresis, unstable aircraft, and other critical considerations.
Author : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Structures and Materials Panel. Meeting
Publisher :
ISBN 13 : 9789283600374
Total Pages : 190 pages
Book Rating : 4.6/5 (3 download)
Download or read book Charges Et Les Spécifications Des Avions Militaires written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Structures and Materials Panel. Meeting and published by . This book was released on 1997 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ray Whitford
Publisher : Crowood Press (UK)
ISBN 13 : 9781861266644
Total Pages : 0 pages
Book Rating : 4.2/5 (666 download)
Download or read book Fundamentals of Fighter Design written by Ray Whitford and published by Crowood Press (UK). This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traces the development of fighter design from World War One to the present day. Covers aerodynamics, stability and control, propulsion, structures and materials, avoinics, armaments and tactics. The drawings and charts make this an informative book for enthusiasts and those with a professional interest in aircraft design.
Author : Jan Roskam
Publisher : DARcorporation
ISBN 13 : 9781884885549
Total Pages : 372 pages
Book Rating : 4.8/5 (855 download)
Download or read book Airplane Design VII written by Jan Roskam and published by DARcorporation. This book was released on 1985 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Peter A. Hancock
Publisher : CRC Press
ISBN 13 : 1351434837
Total Pages : 335 pages
Book Rating : 4.3/5 (514 download)
Download or read book Local Applications of the Ecological Approach To Human-Machine Systems written by Peter A. Hancock and published by CRC Press. This book was released on 2018-05-02 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a growing consensus in the human factors/ergonomics community that human factors research has had little impact on significant applied problems. Some have suggested that the problem lies in the fact that much HF/E research has been based on the wrong type of psychology, an information processing view of psychology that is reductionistic and context-free. Ecological psychology offers a viable alternative, presenting a richer view of human behavior that is holistic and contextualized. The papers presented in these two volumes show the conceptual impact that ecological psychology can have on HF/E, as well as presenting a number of specific examples illustrating the ecological approach to human-machine systems. It is the first collection of papers that explicitly draws a connection between these two fields. While work in this area is only just beginning, the evidence available suggests that taking an ecological approach to human factors/ergonomics helps bridge the existing gap between basic research and applied problems.
Author : Nguyen Vinh
Publisher : Elsevier
ISBN 13 : 0444601457
Total Pages : 421 pages
Book Rating : 4.4/5 (446 download)
Download or read book Optimal Trajectories in Atmospheric Flight written by Nguyen Vinh and published by Elsevier. This book was released on 2012-12-02 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optimal Trajectories in Atmospheric Flight deals with the optimization of trajectories in atmospheric flight. The book begins with a simple treatment of functional optimization followed by a discussion of switching theory. It then presents the derivation of the general equations of motion along with the basic knowledge in aerodynamics and propulsion necessary for the analysis of atmospheric flight trajectories. It goes on to the study of optimal trajectories by providing the general properties of the optimal aerodynamic controls and the integrals of motion. This is followed by discussions of high subsonic and supersonic flight, and approximation techniques to reduce the order of the problem for a fast computation of the optimal trajectory. The final chapters present analyses of optimal reentry trajectories and orbital maneuvers. This book is intended as a reference text for scientists and engineers wanting to get into the subject of optimal trajectories in atmospheric flight. If used for teaching purposes, the book is written in a self-contained way so that a selective use of the material is at the discretion of the lecturer. The first 11 chapters are sufficient for a one-semester course with emphasis on optimal maneuvers of high performance aircraft.
Author : Sven Boermeester
Publisher :
ISBN 13 : 9781949677072
Total Pages : pages
Book Rating : 4.6/5 (77 download)
Download or read book Innovate Bristol written by Sven Boermeester and published by . This book was released on 2019-12 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Innovate Bristol highlights and celebrates those companies and individuals that are actively working at building a better tomorrow for all. Innovation Ecosystems thrive through the involvement and support of companies and individuals from all industries, which is why the Innovate series not only focuses on the innovators but also those people whom the Innovation Ecosystem, would not be able to thrive without.
Author : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development
Publisher :
ISBN 13 : 9789283600046
Total Pages : pages
Book Rating : 4.6/5 ( download)
Download or read book AGARD Conference Proceedings written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : George E. Cooper
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.:/5 (31 download)
Download or read book The Use of Pilot Rating in the Evaluation of Aircraft Handling Qualities written by George E. Cooper and published by . This book was released on 1969 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Patrick Chedmail
Publisher : Springer
ISBN 13 : 9789401063562
Total Pages : 545 pages
Book Rating : 4.0/5 (635 download)
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.
