Modelling and optimal design in railway applications PDF Download

Author: Sangkla Kreuawan
Publisher:
ISBN:
Category :
Languages : fr
Pages : 209

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Book Description
La conception systémique optimale de composant électrotechnique est abordée dans cette thèse. Nous avons choisi comme exemple représentatif d'un système complexe une chaîne de traction électrique. La démarche et les outils sont mis en œuvre sur deux applications: la conception d'un moteur de traction et la conception simultanée de plusieurs composants clés. Pour la conception d'un moteur de traction, le cycle de fonctionnement et le comportement thermique transitoire sont primordiaux. La bonne adaptation du moteur à sa mission permet d'en réduire considérablement sa masse. L'approche multidisciplinaire est utilisée pour gérer les interactions entre modèles de disciplines différentes au sein d'un même processus d'optimisation. Le temps d'optimisation peut être réduit grâce à la répartition des taches par domaine physique et d'en paralléliser l'exécution. Des optimisations multi objectif ont également été appliquées. Des fronts de Pareto sont obtenus malgré les difficultés soulevées par la nécessité d'utiliser un modèle précis mais coûteux, le modèle éléments finis. L'approche décomposition hiérarchique de la méthode Target Cascading est appliquée au problème de conception de la chaîne de traction. Le système et ses composants sont conçus simultanément. Cette méthode est bien adaptée pour appliquer la démarche de conception optimale à des systèmes complexes, tout en respectant l'organisation par produit de l'entreprise

Author: Giampiero Mastinu
Publisher: Springer Science & Business Media
ISBN: 3540343555
Category : Technology & Engineering
Languages : en
Pages : 359

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Book Description
This book presents foundations and practical application of multi-objective optimization methods to Vehicle Design Problems, bolstered with an extensive collection of examples. Opening with a broad theoretical introduction to the optimization of complex mechanical systems and multi-objective optimization methods, the book presents several applications which are extensively exposed here for the first time. The book includes examples of proposed methods to the solution of real vehicle design problems.

Author: Martin Rosenberger
Publisher: CRC Press
ISBN: 1498777023
Category : Technology & Engineering
Languages : en
Pages : 1644

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Book Description
The IAVSD Symposium is the leading international conference in the field of ground vehicle dynamics, bringing together scientists and engineers from academia and industry. The biennial IAVSD symposia have been held in internationally renowned locations. In 2015 the 24th Symposium of the International Association for Vehicle System Dynamics (IAVSD)

Author: Wang Zhou
Publisher: Bentham Science Publishers
ISBN: 1608051382
Category : Transportation
Languages : en
Pages : 156

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Book Description
This book explains the theory and methods of system optimization design for railway intelligent transportation systems (RITS), which optimizes RITS total performance by decreasing the difficulty and cost of system development and increasing the system efficiency. Readers will understand key concepts of RITS and the latest research relevant to China and other countries where RITSs have been developed. The book is suitable for university scholars in the field of railway transportation.

Author: Neculai Andrei
Publisher: Springer Science & Business Media
ISBN: 1461467977
Category : Mathematics
Languages : en
Pages : 356

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Book Description
Here is a collection of nonlinear optimization applications from the real world, expressed in the General Algebraic Modeling System (GAMS). The concepts are presented so that the reader can quickly modify and update them to represent real-world situations.

Author: Tanuja Patgar
Publisher: CRC Press
ISBN: 100064264X
Category : Science
Languages : en
Pages : 119

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Book Description
Railway systems have a long history of train protection and control, as to reduce the risk of train accidents. Many train control systems include automated communication between train and trackside equipment. But several different national systems are still facing cross-border rail traffic. Today, trains for cross-border traffic need to be equipped with train control systems that are installed on the tracks. This book covers the latest advances in Communication Based Train Control (CBTC) research in on-board components locomotive messaging systems, GPS sensors, communications wayside and switching networks. It also focuses on architecture and methodology using data fusion techniques. New wireless sensor integrated modeling techniques for tracking trains in satellite visible and low satellite visible environments are discussed. With a Tunnel Surveillance Integration model, the use of optimal control is necessary to improve train control performance, considering both train–ground communication and train control. The book begins with the background and evolution of train signaling and train control systems. It introduces the main features and architecture of CBTC systems and describes current challenging methods and successful implementations. This introductory book is very useful for Signal & Telecommunication engineers to get them acquainted with the technology used in CBTC, and help them in implementing the system suitable for Indian Railways. As this is a new technology, the information provided in this book is generic and will be subsequently revised after gaining further experience.

Author: Bodhibrata Nag
Publisher: LAP Lambert Academic Publishing
ISBN: 9783838338491
Category :
Languages : en
Pages : 184

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Book Description
This monograph presents a framework for optimum design of timetables to maximise schedule robustness and minimise resource deployment, especially for large railway networks, wherein the problem has been formulated as a multi-objective non-linear model. The monograph s contribution is the formulation of methods to reduce the problem size to computationally manageable proportions, and thus enable planners to undertake network-wide optimisation studies. The monograph demonstrates that the design of timetables can be spread over a canvas incorporating not only over the entire railway network, thus enabling study of the mutual interactions across the network, but also involving the optimisation of crew and rolling stock in the purview of the model. This can thus emulate the planning process more truthfully, wherein piecemeal optimisations are of little import. This monograph should be especially useful for researchers engaged in problems pertaining to railway networks, railway network planners, railway decision support software developers or one interested in industrial applications of operations research.

Author: R. Venkata Rao
Publisher: Springer Science & Business Media
ISBN: 0857290150
Category : Technology & Engineering
Languages : en
Pages : 388

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Book Description
Advanced Modeling and Optimization of Manufacturing Processes presents a comprehensive review of the latest international research and development trends in the modeling and optimization of manufacturing processes, with a focus on machining. It uses examples of various manufacturing processes to demonstrate advanced modeling and optimization techniques. Both basic and advanced concepts are presented for various manufacturing processes, mathematical models, traditional and non-traditional optimization techniques, and real case studies. The results of the application of the proposed methods are also covered and the book highlights the most useful modeling and optimization strategies for achieving best process performance. In addition to covering the advanced modeling, optimization and environmental aspects of machining processes, Advanced Modeling and Optimization of Manufacturing Processes also covers the latest technological advances, including rapid prototyping and tooling, micromachining, and nano-finishing. Advanced Modeling and Optimization of Manufacturing Processes is written for designers and manufacturing engineers who are responsible for the technical aspects of product realization, as it presents new models and optimization techniques to make their work easier, more efficient, and more effective. It is also a useful text for practitioners, researchers, and advanced students in mechanical, industrial, and manufacturing engineering.

Author: Tamas Terlaky
Publisher: SIAM
ISBN: 1611974682
Category : Mathematics
Languages : en
Pages : 730

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Book Description
Optimization is of critical importance in engineering. Engineers constantly strive for the best possible solutions, the most economical use of limited resources, and the greatest efficiency. As system complexity increases, these goals mandate the use of state-of-the-art optimization techniques. In recent years, the theory and methodology of optimization have seen revolutionary improvements. Moreover, the exponential growth in computational power, along with the availability of multicore computing with virtually unlimited memory and storage capacity, has fundamentally changed what engineers can do to optimize their designs. This is a two-way process: engineers benefit from developments in optimization methodology, and challenging new classes of optimization problems arise from novel engineering applications. Advances and Trends in Optimization with Engineering Applications reviews 10 major areas of optimization and related engineering applications, providing a broad summary of state-of-the-art optimization techniques most important to engineering practice. Each part provides a clear overview of a specific area and discusses a range of real-world problems. The book provides a solid foundation for engineers and mathematical optimizers alike who want to understand the importance of optimization methods to engineering and the capabilities of these methods.

Author: Simon Iwnicki
Publisher: CRC Press
ISBN: 042989063X
Category : Science
Languages : en
Pages : 914

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Book Description
Handbook of Railway Vehicle Dynamics, Second Edition, provides expanded, fully updated coverage of railway vehicle dynamics. With chapters by international experts, this work surveys the main areas of rolling stock and locomotive dynamics. Through mathematical analysis and numerous practical examples, it builds a deep understanding of the wheel-rail interface, suspension and suspension component design, simulation and testing of electrical and mechanical systems, and interaction with the surrounding infrastructure, and noise and vibration. Topics added in the Second Edition include magnetic levitation, rail vehicle aerodynamics, and advances in traction and braking for full trains and individual vehicles.