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Feature Driven Method For Structural Optimization

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The Feature Driven Method for Structural Optimization

The Feature Driven Method for Structural Optimization Book
Author : Weihong Zhang,Ying Zhou
Publisher : Elsevier
Release : 2021-01-15
ISBN : 0128213302
Language : En, Es, Fr & De

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Book Description :

The Feature-Driven Method for Structural Optimization details a novel structural optimization method within a CAD framework, integrating structural optimization and feature-based design. The book presents cutting-edge research on advanced structures and introduces the feature-driven structural optimization method by regarding engineering features as basic design primitives. Consequently, it presents a method that allows structural optimization and feature design to be done simultaneously so that feature attributes are preserved throughout the design process. The book illustrates and supports the effectiveness of the method described, showing potential applications through numerical modeling techniques and programming. This volume presents a high-performance optimization method adapted to engineering structures-a novel perspective that will help engineers in the computation, modeling and design of advanced structures. Integrates two independent methods - structural optimization and feature-based design-into one framework Adapts the high performance optimization method to the practice of designing engineering structures Provides numerical evidence for the effectiveness and potential of the methods described Works within a computer-aided design framework to develop a novel structural optimization methodology Presents engineering features as the basic design primitives in structural optimization

The Feature Driven Method for Structural Optimization

The Feature Driven Method for Structural Optimization Book
Author : Weihong Zhang,Ying Zhou Zhong
Publisher : Elsevier
Release : 2020-11-05
ISBN : 0128213310
Language : En, Es, Fr & De

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Book Description :

The Feature-Driven Method for Structural Optimization details a novel structural optimization method within a CAD framework, integrating structural optimization and feature-based design. The book presents cutting-edge research on advanced structures and introduces the feature-driven structural optimization method by regarding engineering features as basic design primitives. Consequently, it presents a method that allows structural optimization and feature design to be done simultaneously so that feature attributes are preserved throughout the design process. The book illustrates and supports the effectiveness of the method described, showing potential applications through numerical modeling techniques and programming. This volume presents a high-performance optimization method adapted to engineering structures—a novel perspective that will help engineers in the computation, modeling and design of advanced structures. Integrates two independent methods - structural optimization and feature-based design—into one framework Adapts the high performance optimization method to the practice of designing engineering structures Provides numerical evidence for the effectiveness and potential of the methods described Works within a computer-aided design framework to develop a novel structural optimization methodology Presents engineering features as the basic design primitives in structural optimization

Topology Optimization in Engineering Structure Design

Topology Optimization in Engineering Structure Design Book
Author : Jihong Zhu,Tong Gao
Publisher : Elsevier
Release : 2016-11-08
ISBN : 0081021194
Language : En, Es, Fr & De

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Book Description :

Topology Optimization in Engineering Structure Design explores the recent advances and applications of topology optimization in engineering structures design, with a particular focus on aircraft and aerospace structural systems. To meet the increasingly complex engineering challenges provided by rapid developments in these industries, structural optimization techniques have developed in conjunction with them over the past two decades. The latest methods and theories to improve mechanical performances and save structural weight under static, dynamic and thermal loads are summarized and explained in detail here, in addition to potential applications of topology optimization techniques such as shape preserving design, smart structure design and additive manufacturing. These new design strategies are illustrated by a host of worked examples, which are inspired by real engineering situations, some of which have been applied to practical structure design with significant effects. Written from a forward-looking applied engineering perspective, the authors not only summarize the latest developments in this field of structure design but also provide both theoretical knowledge and a practical guideline. This book should appeal to graduate students, researchers and engineers, in detailing how to use topology optimization methods to improve product design. Combines practical applications and topology optimization methodologies Provides problems inspired by real engineering difficulties Designed to help researchers in universities acquire more engineering requirements

Topology Optimization driven Design Concepts for an Inter Tank Structure of the Ariane 6 Upper Liquid Propulsion Module

Topology Optimization driven Design Concepts for an Inter Tank Structure of the Ariane 6 Upper Liquid Propulsion Module Book
Author : David Birschitzky
Publisher : Unknown
Release : 2015
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

This thesis investigates the potential of including topology optimization in the design process of the Inter Tank Structure, a primary structural component of the Ariane 6 upper stage. The goal is to enhance the efficiency by lowering its mass with optimization methods, to cut production and operation costs. For this purpose, an optimization methodology has been developed to implement structural optimization in the design process. The Finite Element Method will be used as basis for optimization and linear static structural analysis. The theoretical background will cover the mathematical basics of optimization, an introduction to the Ariane launcher family, possible material options, introduce topology optimization and discuss a software solution for structural optimization. Three design concepts will be introduced. Two will be developed from the beginning by using optimization techniques, the other one has already been developed, but not dimensioned to meet Ariane 6 requirements. Topology optimization will be used to identify the main load paths and therefore the ideal material distribution. The impact of different optimization goals like minimizing mass or weighted compliance will be investigated, as well as the influence of used materials on optimization results. The design concepts will be generated with computer-aided engineering and -design. Structural optimization techniques of size- and free-size optimization will be used as tool, with the objective to improve performance of the design concepts. A final conclusion will summarize results and features of the design concepts and lessons learnt of this thesis.*****This thesis investigates the potential of including topology optimization in the design process of the Inter Tank Structure, a primary structural component of the Ariane 6 upper stage. The goal is to enhance the efficiency by lowering its mass with optimization methods, to cut production and operation costs. For this purpose, an optimization methodology

Topology Optimization of Compliant Mechanisms

Topology Optimization of Compliant Mechanisms Book
Author : Xianmin Zhang,Benliang Zhu
Publisher : Springer
Release : 2018-05-02
ISBN : 9811304327
Language : En, Es, Fr & De

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Book Description :

This book covers various topics regarding the design of compliant mechanisms using topology optimization that have attracted a great deal of attention in recent decades. After comprehensively describing state-of-the-art methods for designing compliant mechanisms, it provides a new topology optimization method for finding new flexure hinges. It then presents several attempts to obtain distributed compliant mechanisms using the topology optimization method. Further, it discusses a Jacobian-based topology optimization method for compliant parallel mechanisms, and introduces readers to the topology optimization of compliant mechanisms, taking into account geometrical nonlinearity and reliability. Providing a systematic method for topology optimization of flexure hinges, which are essential for designing compliant mechanisms, the book offers a valuable resource for all readers who are interested in designing compliant mechanism-based positioning stages. In addition, the methods for solving the de facto hinges in topology optimized compliant mechanisms will benefit all engineers seeking to design micro-electro-mechanical system (MEMS) structures.

Software Systems for Structural Optimization

Software Systems for Structural Optimization Book
Author : H.R. Hörnlein,K. Schnittkowski
Publisher : Birkhäuser
Release : 2013-03-07
ISBN : 3034885539
Language : En, Es, Fr & De

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Book Description :

Herbert Hornlein, Klaus Schittkowski The finite element method (FEM) has been used successfully for many years to simulate and analyse mechanical structural problems. The results are accepted or rejected by means of comparison of state variables (stresses, displacements, natural frequencies etc.) and user requirements. In further analyses the design variables will be updated until the user specifications are met and the design is feasible. This is the primary aim of the design process. On this set of feasible designs, the additional requirement given by an objective function (e.g. weight, stiffness, efficiency, etc.) defines the structural optimization problem. In recent years more and more finite element based analysis systems were ex tended and offer now optimization modules. They proceed from the design model as defined for structural analysis, to perform an internal adaption of design pa rameters based on formal mathematical methods. Despite of many common features, there are significant differences in the selected optimization strategy, the current implementation and the numerical results.

Analysis and Optimization of Prismatic and Axisymmetric Shell Structures

Analysis and Optimization of Prismatic and Axisymmetric Shell Structures Book
Author : Ernest Hinton,Johann Sienz,Mustafa Özakca
Publisher : Springer Science & Business Media
Release : 2012-12-06
ISBN : 0857294245
Language : En, Es, Fr & De

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Book Description :

Shell-type structures can be found almost everywhere. They appear in natural forms but also as man-made, load-bearing components in diverse engineering systems. Mankind has struggled to replicate nature’s optimization of such structures but using modern computational tools it is now possible to analyse, design and optimise them systematically. Analysis and Optimization of Prismatic and Axisymmetric Shell Structures features: comprehensive coverage of the background theory of shell structures; development and implementation of reliable, creative and efficient computational tools for static and free-vibration analysis and structural optimization of variable-thickness shells and folded-plate structures; integrated computer-aided curve and surface modelling tools and automatic mesh generation, structural analysis sensitivity analysis and mathematical programming methods; well-documented, downloadable Fortran software for these techniques using finite element and finite strip simulations which can be readily adapted by the reader for the solution of practical problems or for use within a teaching or research environment. Written by leading experts in finite element and finite strip methods, Analysis and Optimization of Prismatic and Axisymmetric Shell Structures will be of great interest to researchers in structural mechanics and in automotive, aerospace and civil engineering as well as to designers from all fields using shell structures for their strength-per-unit-mass advantages.

Text Speech and Dialogue

Text  Speech  and Dialogue Book
Author : Kamil Ekštein
Publisher : Springer Nature
Release : 2019-09-02
ISBN : 3030279472
Language : En, Es, Fr & De

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Book Description :

This book constitutes the proceedings of the 22nd International Conference on Text, Speech, and Dialogue, TSD 2019, held in Ljubljana, Slovenia, in September 2019. The 33 full papers presented in this volume were carefully reviewed and selected from 73 submissions. They were organized in topical sections named text and speech. The book also contains one invited talk in full paper length.

Optimization of Structural and Mechanical Systems

Optimization of Structural and Mechanical Systems Book
Author : Jasbir S. Arora
Publisher : World Scientific
Release : 2007
ISBN : 9812779671
Language : En, Es, Fr & De

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Book Description :

This book provides a discussion of the general impact of WTO membership on both sides of the Taiwan Strait, and addresses the political and economic impact on cross-Strait relations of common membership. The book begins with an introduction which analyzes the state of cross-Strait economic and political relations on the eve of dual accession to the WTO and briefly introduces the chapters which follow. The first chapter discusses the concessions made by both sides in their accession agreements and is followed by two chapters which describe the manner in which the Taiwan economy was reformed to achieve compliance as well as the specific, restrictive trade regime that was put into place to manage mainland trade. The next two chapters deal with the implications of that restrictive trade regime for the Taiwan economy in Asia and with the nature of the interactions between the two sides within the WTO. The final four chapters of the volume examine the impact of membership on four sectors of the economy: finance; agriculture; electronics and automobiles. There is a post-script which briefly covers developments since the chapters were completed.

Computational Intelligence and Bioinspired Systems

Computational Intelligence and Bioinspired Systems Book
Author : Joan Cabestany,Alberto Prieto,Francisco Sandoval
Publisher : Springer
Release : 2005-06-21
ISBN : 3540321063
Language : En, Es, Fr & De

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Book Description :

We present in this volume the collection of finally accepted papers of the eighth edition of the “IWANN” conference (“International Work-Conference on Artificial Neural Networks”). This biennial meeting focuses on the foundations, theory, models and applications of systems inspired by nature (neural networks, fuzzy logic and evolutionary systems). Since the first edition of IWANN in Granada (LNCS 540, 1991), the Artificial Neural Network (ANN) community, and the domain itself, have matured and evolved. Under the ANN banner we find a very heterogeneous scenario with a main interest and objective: to better understand nature and beings for the correct elaboration of theories, models and new algorithms. For scientists, engineers and professionals working in the area, this is a very good way to get solid and competitive applications. We are facing a real revolution with the emergence of embedded intelligence in many artificial systems (systems covering diverse fields: industry, domotics, leisure, healthcare, ... ). So we are convinced that an enormous amount of work must be, and should be, still done. Many pieces of the puzzle must be built and placed into their proper positions, offering us new and solid theories and models (necessary tools) for the application and praxis of these current paradigms. The above-mentioned concepts were the main reason for the subtitle of the IWANN 2005 edition: “Computational Intelligence and Bioinspired Systems.” The call for papers was launched several months ago, addressing the following topics: 1. Mathematical and theoretical methods in computational intelligence.

Structural Optimization

Structural Optimization Book
Author : William R. Spillers,Keith M. MacBain
Publisher : Springer Science & Business Media
Release : 2009-06-10
ISBN : 0387958657
Language : En, Es, Fr & De

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Book Description :

Structural Optimization is intended to supplement the engineer’s box of analysis and design tools making optimization as commonplace as the finite element method in the engineering workplace. It begins with an introduction to structural optimization and the methods of nonlinear programming such as Lagrange multipliers, Kuhn-Tucker conditions, and calculus of variations. It then discusses solution methods for optimization problems such as the classic method of linear programming which leads to the method of sequential linear programming. It then proposes using sequential linear programming together with the incremental equations of structures as a general method for structural optimization. It is furthermore intended to give the engineer an overview of the field of structural optimization.

Paradigms in Computing

Paradigms in Computing Book
Author : David Jason Gerber,Mariana Ibanez
Publisher : eVolo Press
Release : 2015-01-01
ISBN : 1938740114
Language : En, Es, Fr & De

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Book Description :

Paradigms in Computing: Making, Machines, and Models for Design Agency in Architecture brings together critical, theoretical, and practical research and design that illustrates the plurality of computing approaches within the broad spectrum of design and mediated practices. It is an interrogation of our primary field of architecture through the lens of computing, and yet one that realizes a productive expanding of our métier’s definition and boundaries. It is a compilation that purposefully promotes architecture’s disciplinary reach and incorporations beyond the design and construction of buildings and cities. The book offers a glimpse into the wide range of positions and experiences that are shaping practice and discourse today. The work included in Paradigms in Computing is evidence that models for enquiry are many and proliferating. As digitalization and computation continue to infuse our processes with new tools and new design environments, some of the trends collected in this book will continue to be central to the production and speculation of architecture, and others will, in retrospect, be recognized as the seeds of new, or perhaps multiple, paradigms. Included are essays and projects, from; Alisa Andrasek, Rachel Armstrong, Philip Beesley, Tom Bessai, Shajay Bhooshan, Brad Cantrel, Matias Del Campo, Pablo Eiroa, Marc Fornes, David Jason Gerber, Maria Paz Gutierrez, Alvin Huang, Jason Kelly Johnson, Simon Kim, Neil Leach, Greg Lynn, Elena and Anna Maria Manferdini, Alex McDowell, Phillippe Morel, Nick Puckett, Casey Reas, Alex Robinson, Jenny Sabin, Jose Sanchez, Patrik Schumacher, Kyle Steinfeld, Satoru Sugihara, Orkan Telhan, Kathy Velikov and Geoffrey Thun, Tom Verebes, Leire Asensio Villoria and David Mah, Jenny Wu, Eric Howeler and Meejin Yoon, and Zaha Hadid Architects.

Advances in Structural and Multidisciplinary Optimization

Advances in Structural and Multidisciplinary Optimization Book
Author : Axel Schumacher,Thomas Vietor,Sierk Fiebig,Kai-Uwe Bletzinger,Kurt Maute
Publisher : Springer
Release : 2017-12-04
ISBN : 3319679880
Language : En, Es, Fr & De

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Book Description :

The volume includes papers from the WSCMO conference in Braunschweig 2017 presenting research of all aspects of the optimal design of structures as well as multidisciplinary design optimization where the involved disciplines deal with the analysis of solids, fluids or other field problems. Also presented are practical applications of optimization methods and the corresponding software development in all branches of technology.

Handbook of Face Recognition

Handbook of Face Recognition Book
Author : Stan Z. Li,Anil K. Jain
Publisher : Springer Science & Business Media
Release : 2011-08-22
ISBN : 9780857299321
Language : En, Es, Fr & De

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Book Description :

This highly anticipated new edition provides a comprehensive account of face recognition research and technology, spanning the full range of topics needed for designing operational face recognition systems. After a thorough introductory chapter, each of the following chapters focus on a specific topic, reviewing background information, up-to-date techniques, and recent results, as well as offering challenges and future directions. Features: fully updated, revised and expanded, covering the entire spectrum of concepts, methods, and algorithms for automated face detection and recognition systems; provides comprehensive coverage of face detection, tracking, alignment, feature extraction, and recognition technologies, and issues in evaluation, systems, security, and applications; contains numerous step-by-step algorithms; describes a broad range of applications; presents contributions from an international selection of experts; integrates numerous supporting graphs, tables, charts, and performance data.

Multidisciplinary Design Optimization Methods for Electrical Machines and Drive Systems

Multidisciplinary Design Optimization Methods for Electrical Machines and Drive Systems Book
Author : Gang Lei,Jianguo Zhu,Youguang Guo
Publisher : Springer
Release : 2016-02-05
ISBN : 3662492717
Language : En, Es, Fr & De

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Book Description :

This book presents various computationally efficient component- and system-level design optimization methods for advanced electrical machines and drive systems. Readers will discover novel design optimization concepts developed by the authors and other researchers in the last decade, including application-oriented, multi-disciplinary, multi-objective, multi-level, deterministic, and robust design optimization methods. A multi-disciplinary analysis includes various aspects of materials, electromagnetics, thermotics, mechanics, power electronics, applied mathematics, manufacturing technology, and quality control and management. This book will benefit both researchers and engineers in the field of motor and drive design and manufacturing, thus enabling the effective development of the high-quality production of innovative, high-performance drive systems for challenging applications, such as green energy systems and electric vehicles.

Impact Design With All Senses

Impact  Design With All Senses Book
Author : Christoph Gengnagel,Olivier Baverel,Jane Burry,Mette Ramsgaard Thomsen,Stefan Weinzierl
Publisher : Springer Nature
Release : 2019-08-28
ISBN : 3030298299
Language : En, Es, Fr & De

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Book Description :

This book reflects and expands on the current trend in the building industry to understand, simulate and ultimately design buildings by taking into consideration the interlinked elements and forces that act on them. Shifting away from the traditional focus, which was exclusively on building tasks, this approach presents new challenges in all areas of the industry, from material and structural to the urban scale. The book presents contributions including research papers and case studies, providing a comprehensive overview of the field as well as perspectives from related disciplines, such as computer science. The chapter authors were invited speakers at the 7th Symposium “Impact: Design With All Senses”, which took place at the University of the Arts in Berlin in September 2019.

Structural Health Monitoring by Time Series Analysis and Statistical Distance Measures

Structural Health Monitoring by Time Series Analysis and Statistical Distance Measures Book
Author : Alireza Entezami
Publisher : Springer Nature
Release : 2021
ISBN : 3030662594
Language : En, Es, Fr & De

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Book Description :

This book conducts effective research on data-driven Structural Health Monitoring (SHM), and accordingly presents many novel feature extraction methods by time series analysis and signal processing, to extract reliable damage sensitive features from vibration responses. In this regard, some limitations of time series modeling are dealt with. For decision-making, innovative distance-based novelty detection techniques are presented to detect, locate, and quantify different damage scenarios. The performance of the presented methods is demonstrated via laboratory and full-scale structures along with several comparative studies. The main target audience of the book includes scholars, graduate students working on SHM via statistical pattern recognition in terms of feature extraction and classification for damage diagnosis under environmental and operational variations; it would also be beneficial for practicing engineers whose work involves these topics.

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports Book
Author : Anonim
Publisher : Unknown
Release : 1989
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Scientific and Technical Aerospace Reports book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Proceedings of 2017 Chinese Intelligent Systems Conference

Proceedings of 2017 Chinese Intelligent Systems Conference Book
Author : Yingmin Jia,Junping Du,Weicun Zhang
Publisher : Springer
Release : 2017-09-19
ISBN : 9811064962
Language : En, Es, Fr & De

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Book Description :

This book presents selected research papers from CISC’17, held in MudanJiang, China. The topics covered include Multi-agent system, Evolutionary Computation, Artificial Intelligence, Complex systems, Computation intelligence and soft computing, Intelligent control, Advanced control technology, Robotics and applications, Intelligent information processing, Iterative learning control, Machine Learning, and etc. Engineers and researchers from academia, industry, and government can gain valuable insights into solutions combining ideas from multiple disciplines in the field of intelligent systems.

Intelligence Systems in Environmental Management Theory and Applications

Intelligence Systems in Environmental Management  Theory and Applications Book
Author : Cengiz Kahraman,İrem Uçal Sari
Publisher : Springer
Release : 2016-09-03
ISBN : 3319429930
Language : En, Es, Fr & De

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Book Description :

This book offers a comprehensive reference guide to intelligence systems in environmental management. It provides readers with all the necessary tools for solving complex environmental problems, where classical techniques cannot be applied. The respective chapters, written by prominent researchers, explain a wealth of both basic and advanced concepts including ant colony, genetic algorithms, evolutionary algorithms, fuzzy multi-criteria decision making tools, particle swarm optimization, agent-based modelling, artificial neural networks, simulated annealing, Tabu search, fuzzy multi-objective optimization, fuzzy rules, support vector machines, fuzzy cognitive maps, cumulative belief degrees, and many others. To foster a better understanding, all the chapters include relevant numerical examples or case studies. Taken together, they form an excellent reference guide for researchers, lecturers and postgraduate students pursuing research on complex environmental problems. Moreover, by extending all the main aspects of classical environmental solution techniques to its intelligent counterpart, the book presents a dynamic snapshot on the field that is expected to stimulate new directions and stimulate new ideas and developments.