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Nonlinear Optimization Of Vehicle Safety Structures

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Nonlinear Optimization of Vehicle Safety Structures

Nonlinear Optimization of Vehicle Safety Structures Book
Author : Jesper Christensen,Christophe Bastien
Publisher : Butterworth-Heinemann
Release : 2015-12-07
ISBN : 0124173098
Language : En, Es, Fr & De

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Book Description :

Nonlinear Optimization of Vehicle Safety Structures: Modeling of Structures Subjected to Large Deformations provides a cutting-edge overview of the latest optimization methods for vehicle structural design. The book focuses on large deformation structural optimization algorithms and applications, covering the basic principles of modern day topology optimization and comparing the benefits and flaws of different algorithms in use. The complications of non-linear optimization are highlighted, along with the shortcomings of recently proposed algorithms. Using industry relevant case studies, users will how optimization software can be used to address challenging vehicle safety structure problems and how to explore the limitations of the approaches given. The authors draw on research work with the likes of MIRA, Jaguar Land Rover and Tata Motors European Technology Centre as part of multi-million pound European funded research projects, emphasizing the industry applications of recent advances. The book is intended for crash engineers, restraints system engineers and vehicle dynamics engineers, as well as other mechanical, automotive and aerospace engineers, researchers and students with a structural focus. Focuses on non-linear, large deformation structural optimization problems relating to vehicle safety Discusses the limitations of different algorithms in use and offers guidance on best practice approaches through the use of relevant case studies Author's present research from the cutting-edge of the industry, including research from leading European automotive companies and organizations Uses industry relevant case studies, allowing users to understand how optimization software can be used to address challenging vehicle safety structure problems and how to explore the limitations of the approaches given

Autonomous Vehicle

Autonomous Vehicle Book
Author : Andrzej Zak
Publisher : BoD – Books on Demand
Release : 2016-09-07
ISBN : 9535125842
Language : En, Es, Fr & De

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Book Description :

Autonomous vehicles, despite their relatively short history, have already found practical application in many areas of human activity. Such vehicles are usually replacing people in performing tasks that require long operating time and are held in inaccessible or hazardous environments. Nevertheless, autonomous robotics is probably the area that is being developed the most because of the great demand for such devices in different areas of our lives. This book is a collection of experiences shared by scientists from different parts of the world doing researches and daily exploiting autonomous systems. Giving this book in the hands of the reader, we hope that it will be a treasure trove of knowledge and inspiration for further research in the field of autonomous vehicles.

Gas Allocation Optimization Methods in Artificial Gas Lift

Gas Allocation Optimization Methods in Artificial Gas Lift Book
Author : Ehsan Khamehchi,Mohammad Reza Mahdiani
Publisher : Springer
Release : 2016-12-31
ISBN : 3319514512
Language : En, Es, Fr & De

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Book Description :

This Brief offers a comprehensive study covering the different aspects of gas allocation optimization in petroleum engineering. It contains different methods of defining the fitness function, dealing with constraints and selecting the optimizer; in each chapter a detailed literature review is included which covers older and important studies as well as recent publications. This book will be of use for production engineers and students interested in gas lift optimization.

Security and Privacy in New Computing Environments

Security and Privacy in New Computing Environments Book
Author : Jin Li,Zheli Liu,Hao Peng
Publisher : Springer
Release : 2019-06-07
ISBN : 3030213730
Language : En, Es, Fr & De

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Book Description :

This book constitutes the refereed proceedings of the 2nd EAI International Conference on Security and Privacy in New Computing Environments, SPNCE 2019, held in Tianjin, China, in April 2019. The 62 full papers were selected from 112 submissions and are grouped into topics on privacy and security analysis, Internet of Things and cloud computing, system building, scheme, model and application for data, mechanism and method in new computing.

Artificial Cognitive Architecture with Self Learning and Self Optimization Capabilities

Artificial Cognitive Architecture with Self Learning and Self Optimization Capabilities Book
Author : Gerardo Beruvides
Publisher : Springer
Release : 2018-12-14
ISBN : 3030039498
Language : En, Es, Fr & De

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Book Description :

This book introduces three key issues: (i) development of a gradient-free method to enable multi-objective self-optimization; (ii) development of a reinforcement learning strategy to carry out self-learning and finally, (iii) experimental evaluation and validation in two micromachining processes (i.e., micro-milling and micro-drilling). The computational architecture (modular, network and reconfigurable for real-time monitoring and control) takes into account the analysis of different types of sensors, processing strategies and methodologies for extracting behavior patterns from representative process’ signals. The reconfiguration capability and portability of this architecture are supported by two major levels: the cognitive level (core) and the executive level (direct data exchange with the process). At the same time, the architecture includes different operating modes that interact with the process to be monitored and/or controlled. The cognitive level includes three fundamental modes such as modeling, optimization and learning, which are necessary for decision-making (in the form of control signals) and for the real-time experimental characterization of complex processes. In the specific case of the micromachining processes, a series of models based on linear regression, nonlinear regression and artificial intelligence techniques were obtained. On the other hand, the executive level has a constant interaction with the process to be monitored and/or controlled. This level receives the configuration and parameterization from the cognitive level to perform the desired monitoring and control tasks.

International Conference on Statistics and Analytical Methods in Automotive Engineering

International Conference on Statistics and Analytical Methods in Automotive Engineering Book
Author : IMechE (Institution of Mechanical Engineers)
Publisher : John Wiley & Sons
Release : 2002-11-22
ISBN : 9781860583872
Language : En, Es, Fr & De

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Book Description :

These IMechE conference transactions examine how major improvements have been made in product delivery processes by the effective use of both statistical and analytical methods, as well as examining the problems that can occur as a result of under utilization of information. This volume will be of great interest to managers, engineers, and statisticians at all levels, engaged in project management or the design and development of motor vehicles, their subsystems, and components. CONTENTS INCLUDE Applications of advanced modelling methods in engine development Application of adaptive online DoE techniques for engine ECU calibration Radial basis functions for engine modelling Designing for Six Sigma reliability Dimensional variation analysis for automotive hybrid aluminium body structures Reliability-based multidisciplinary design optimization of vehicle structures

Computational Dynamics in Multibody Systems

Computational Dynamics in Multibody Systems Book
Author : Manuel F.O. Seabra Pereira,Jorge A.C. Ambrósio
Publisher : Springer Science & Business Media
Release : 2013-03-09
ISBN : 9401711100
Language : En, Es, Fr & De

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Book Description :

This volume contains the edited version of selected papers presented at the Nato Advanced Study Institute on "Computer Aided Analysis of Rigid and Flexible Mechanical Systems", held in Portugal, from the 27 June to 9 July, 1994. The present volume can be viewed as a natural extension of the material addressed in the Institute which was published by KLUWER in the NATO ASI Series, Vol. 268, in 1994. The requirements for accurate and efficient analysis tools for design of large and lightweight mechanical systems has driven a strong interest in the challenging problem of multibody dynamics. The development of new analysis and design formulations for multi body systems has been more recently motivated with the need to include general features such as: real-time simulation capabilities, active control of machine flexibilities and advanced numerical methods related to time integration of the dynamic systems equations. In addition to the presentation of some basic formulations and methodologies in dynamics of multibody systems, including computational aspects, major applications of developments to date are presented herein. The scope of applications is extended to vehicle dynamics, aerospace technology, robotics, mechanisms design, intermittent motion and crashworthiness analysis. Several of these applications are explored by many contributors with a constant objective to pace development and improve the dynamic performance of mechanical systems avoiding different mechanical limitations and difficult functional requirements, such as, for example, accurate positioning of manipulators.

A Subject Bibliography from Highway Safety Literature

A Subject Bibliography from Highway Safety Literature Book
Author : United States. National Highway Traffic Safety Administration
Publisher : Unknown
Release : 1979
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download A Subject Bibliography from Highway Safety Literature book written by United States. National Highway Traffic Safety Administration, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Highway Safety Literature

Highway Safety Literature Book
Author : Anonim
Publisher : Unknown
Release : 1976
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Highway Safety Literature book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Passive Restraints

Passive Restraints Book
Author : Lois Flynn
Publisher : Unknown
Release : 1979
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Passive Restraints book written by Lois Flynn, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Passive Restraints bibliography

Passive Restraints  bibliography   Book
Author : Lois Flynn
Publisher : Unknown
Release : 1979
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Passive Restraints bibliography book written by Lois Flynn, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Proceedings of the ASME Design Engineering Technical Conferences

Proceedings of the     ASME Design Engineering Technical Conferences Book
Author : Anonim
Publisher : Unknown
Release : 2002
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Proceedings of the ASME Design Engineering Technical Conferences book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Automotive Electronics Reliability

Automotive Electronics Reliability Book
Author : Ronald K Jurgen
Publisher : SAE International
Release : 2010-08-30
ISBN : 0768096669
Language : En, Es, Fr & De

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Book Description :

Vehicle reliability problems continue to be the news because of major vehicle recalls from several manufacturers. This book includes 40 SAE technical papers, published from 2007 through 2010, that describe the latest research on automotive electronics reliability technology. This book will help engineers and researchers focus on the design strategies being used to minimize electronics reliability problems, and how to test and verify those strategies. After an overview of durability, risk assessment, and failure mechanisms, this book focuses on state-of-the-art techniques for reliability-based design, and reliability testing and verification. Topics include: powertrain control monitoring distributed automotive embedded systems model-based design x-by-wire systems battery durability design verification fault tree analysis The book also includes editor Ronald K. Jurgens introduction ,"e;Striving for Maximum Reliability in a Highly Complex Electronic Environment"e;, and a concluding section on the future of electronics reliability, including networking technology, domain control units, the use of AUTOSAR, and embedded software.

Computational Mechanics

Computational Mechanics Book
Author : Zhenhan Yao,M. W. Yuan,Wanxie Zhong
Publisher : 清华大学出版社有限公司
Release : 2004
ISBN : 9787302093435
Language : En, Es, Fr & De

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Book Description :

Download Computational Mechanics book written by Zhenhan Yao,M. W. Yuan,Wanxie Zhong, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Annual Solicitation for Research Proposals Program of University Research

Annual Solicitation for Research Proposals Program of University Research Book
Author : United States. Dept. of Transportation. Office of University Research
Publisher : Unknown
Release : 1977
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Annual Solicitation for Research Proposals Program of University Research book written by United States. Dept. of Transportation. Office of University Research, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Topology Design of Vehicle Structures for Crashworthiness Using Variable Design Time

Topology Design of Vehicle Structures for Crashworthiness Using Variable Design Time Book
Author : Prasad Tapkir
Publisher : Unknown
Release : 2017
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

The passenger safety is one of the most important factors in the automotive industries. At the same time, in order to improve the overall efficiency of passenger cars, lightweight structures are preferred while designing the vehicle structures. Among various structural optimization techniques, topology optimization techniques are usually preferred to address the issue of crashworthiness. The hybrid cellular automaton (HCA) is a truly nonlinear explicit topology design method developed for obtaining conceptual designs of crashworthy vehicle components. In comparison to linear implicit methods, such as equivalent static loads, and partially nonlinear implicit methods, the HCA method fully captures all the relevant aspect of a fully nonlinear, transient dynamic crash simulation. Traditionally, the focus of the HCA method has been on designing load paths in the crash component that increase the uniform internal energy absorption ability; thus far, other relevant crashworthiness indicators such as peak crushing force and displacement have been less studied. The objective of this research is to extend the HCA method to synthesize load paths to obtain the different acceleration-displacement profiles, which allow reduced peak crushing force as well as reduced penetration during a crash event. To achieve this goal, this work introduces the concept of achieving uniform energy distribution at variable design simulation times. In the proposed work, the design time is used as a new design parameter in topology optimization. The desired volume fraction of the final design and the design time provided two dimensional design space for topology optimization, which is followed by the formulation of design of experiments (DOEs). The nonlinear analyses of the corresponding DOEs are performed using nonlinear explicit code LS-DYNA, which is followed by topology synthesis in HCA. The performance of the resulting structures showed that the short design times lead to design obtained by linear optimizers, while long simulation times lead to designs obtained by the traditional HCA method. To achieve the target crucial crash responses such as maximum acceleration and maximum displacement of the structure under the dynamic load, the geological predictor has been implemented. The concept of design time is further developed to improve structural performance of a vehicle component under the multiple loads using the method of multi-design time. Finally, the design time is implemented to generated merged designs by performing binary operations on topology-optimized designs. Numerical example of the simplified front frame is utilized to demonstrate the capabilities of the proposed approach.

Public Roads

Public Roads Book
Author : Anonim
Publisher : Unknown
Release : 2001
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Public Roads book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Publications

Publications Book
Author : United States. National Bureau of Standards
Publisher : Unknown
Release : 1978
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Publications book written by United States. National Bureau of Standards, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Publications of the National Bureau of Standards Catalog

Publications of the National Bureau of Standards     Catalog Book
Author : United States. National Bureau of Standards
Publisher : Unknown
Release : 1978
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Publications of the National Bureau of Standards Catalog book written by United States. National Bureau of Standards, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.