Computational Methods in Structural Dynamics

Computational Methods in Structural Dynamics PDF Author: L. Meirovitch
Publisher: Springer Science & Business Media
ISBN: 9789028605800
Category : Mathematics
Languages : en
Pages : 462

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Computational Methods in Structural Dynamics

Computational Methods in Structural Dynamics PDF Author: L. Meirovitch
Publisher: Springer Science & Business Media
ISBN: 9789028605800
Category : Mathematics
Languages : en
Pages : 462

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Book Description


Computational Structural Dynamics and Earthquake Engineering

Computational Structural Dynamics and Earthquake Engineering PDF Author: Manolis Papadrakakis
Publisher: CRC Press
ISBN: 020388163X
Category : Technology & Engineering
Languages : en
Pages : 672

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Book Description
The increasing necessity to solve complex problems in Structural Dynamics and Earthquake Engineering requires the development of new ideas, innovative methods and numerical tools for providing accurate numerical solutions in affordable computing times. This book presents the latest scientific developments in Computational Dynamics, Stochastic Dynam

Fundamentals of Structural Dynamics

Fundamentals of Structural Dynamics PDF Author: Roy R. Craig, Jr.
Publisher: John Wiley & Sons
ISBN: 1118174445
Category : Technology & Engineering
Languages : en
Pages : 792

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Book Description
FUNDAMENTALS OF STRUCTURAL DYNAMICS From theory and fundamentals to the latest advances in computational and experimental modal analysis, this is the definitive, updated reference on structural dynamics. This edition updates Professor Craig’s classic introduction to structural dynamics, which has been an invaluable resource for practicing engineers and a textbook for undergraduate and graduate courses in vibrations and/or structural dynamics. Along with comprehensive coverage of structural dynamics fundamentals, finite-element–based computational methods, and dynamic testing methods, this Second Edition includes new and expanded coverage of computational methods, as well as introductions to more advanced topics, including experimental modal analysis and “active structures.” With a systematic approach, it presents solution techniques that apply to various engineering disciplines. It discusses single degree-of-freedom (SDOF) systems, multiple degrees-of-freedom (MDOF) systems, and continuous systems in depth; and includes numeric evaluation of modes and frequency of MDOF systems; direct integration methods for dynamic response of SDOF systems and MDOF systems; and component mode synthesis. Numerous illustrative examples help engineers apply the techniques and methods to challenges they face in the real world. MATLAB® is extensively used throughout the book, and many of the .m-files are made available on the book’s Web site. Fundamentals of Structural Dynamics, Second Edition is an indispensable reference and “refresher course” for engineering professionals; and a textbook for seniors or graduate students in mechanical engineering, civil engineering, engineering mechanics, or aerospace engineering.

FINITE ELEMENT METHOD AND COMPUTATIONAL STRUCTURAL DYNAMICS

FINITE ELEMENT METHOD AND COMPUTATIONAL STRUCTURAL DYNAMICS PDF Author: MANISH SHRIKHANDE
Publisher: PHI Learning Pvt. Ltd.
ISBN: 8120349954
Category : Technology & Engineering
Languages : en
Pages : 492

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Book Description
Primarily intended for senior undergraduate and postgraduate students of civil, mechanical and aerospace/aeronautical engineering, this text emphasises the importance of reliability in engineering computations and understanding the process of computer aided engineering. Written with a view to promote the correct use of finite element technology and to present a detailed study of a set of essential computational tools for the practice of structural dynamics, this book is a ready-reckoner for an in-depth discussion of finite element theory and estimation and control of errors in computations. It is specifically aimed at the audience with interest in vibrations and stress analysis. Several worked out examples and exercise problems have been included to describe the various aspects of finite element theory and modelling. The exercise on error analysis will be extremely helpful in grasping the essence of posteriori error analysis and mesh refinement. KEY FEATURES • Thorough discussion of numerical algorithms for reliable and efficient computation. • Ready-to-use finite element system and other scientific applications. • Tips for improving the quality of finite element solutions. • Companion DVD containing ready to use finite element applications. AUDIENCE: Senior Undergraduate and Postgraduate students of Civil, Mechanical and Aerospace/Aeronautical engineering

Research Directions in Computational Mechanics

Research Directions in Computational Mechanics PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309046483
Category : Technology & Engineering
Languages : en
Pages : 145

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Book Description
Computational mechanics is a scientific discipline that marries physics, computers, and mathematics to emulate natural physical phenomena. It is a technology that allows scientists to study and predict the performance of various productsâ€"important for research and development in the industrialized world. This book describes current trends and future research directions in computational mechanics in areas where gaps exist in current knowledge and where major advances are crucial to continued technological developments in the United States.

Computational Methods in Nonlinear Structural and Solid Mechanics

Computational Methods in Nonlinear Structural and Solid Mechanics PDF Author: Ahmed K. Noor
Publisher: Elsevier
ISBN: 1483145646
Category : Mathematics
Languages : en
Pages : 472

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Book Description
Computational Methods in Nonlinear Structural and Solid Mechanics covers the proceedings of the Symposium on Computational Methods in Nonlinear Structural and Solid Mechanics. The book covers the development of efficient discretization approaches; advanced numerical methods; improved programming techniques; and applications of these developments to nonlinear analysis of structures and solids. The chapters of the text are organized into 10 parts according to the issue they tackle. The first part deals with nonlinear mathematical theories and formulation aspects, while the second part covers computational strategies for nonlinear programs. Part 3 deals with time integration and numerical solution of nonlinear algebraic equations, while Part 4 discusses material characterization and nonlinear fracture mechanics, and Part 5 tackles nonlinear interaction problems. The sixth part discusses seismic response and nonlinear analysis of concrete structure, and the seventh part tackles nonlinear problems for nuclear reactors. Part 8 covers crash dynamics and impact problems, while Part 9 deals with nonlinear problems of fibrous composites and advanced nonlinear applications. The last part discusses computerized symbolic manipulation and nonlinear analysis software systems. The book will be of great interest to numerical analysts, computer scientists, structural engineers, and other professionals concerned with nonlinear structural and solid mechanics.

Bayesian Methods for Structural Dynamics and Civil Engineering

Bayesian Methods for Structural Dynamics and Civil Engineering PDF Author: Ka-Veng Yuen
Publisher: John Wiley & Sons
ISBN: 9780470824559
Category : Mathematics
Languages : en
Pages : 320

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Book Description
Bayesian methods are a powerful tool in many areas of science and engineering, especially statistical physics, medical sciences, electrical engineering, and information sciences. They are also ideal for civil engineering applications, given the numerous types of modeling and parametric uncertainty in civil engineering problems. For example, earthquake ground motion cannot be predetermined at the structural design stage. Complete wind pressure profiles are difficult to measure under operating conditions. Material properties can be difficult to determine to a very precise level – especially concrete, rock, and soil. For air quality prediction, it is difficult to measure the hourly/daily pollutants generated by cars and factories within the area of concern. It is also difficult to obtain the updated air quality information of the surrounding cities. Furthermore, the meteorological conditions of the day for prediction are also uncertain. These are just some of the civil engineering examples to which Bayesian probabilistic methods are applicable. Familiarizes readers with the latest developments in the field Includes identification problems for both dynamic and static systems Addresses challenging civil engineering problems such as modal/model updating Presents methods applicable to mechanical and aerospace engineering Gives engineers and engineering students a concrete sense of implementation Covers real-world case studies in civil engineering and beyond, such as: structural health monitoring seismic attenuation finite-element model updating hydraulic jump artificial neural network for damage detection air quality prediction Includes other insightful daily-life examples Companion website with MATLAB code downloads for independent practice Written by a leading expert in the use of Bayesian methods for civil engineering problems This book is ideal for researchers and graduate students in civil and mechanical engineering or applied probability and statistics. Practicing engineers interested in the application of statistical methods to solve engineering problems will also find this to be a valuable text. MATLAB code and lecture materials for instructors available at http://www.wiley.com/go/yuen

Computational Structural Concrete

Computational Structural Concrete PDF Author: Ulrich Häussler-Combe
Publisher: John Wiley & Sons
ISBN: 343361024X
Category : Technology & Engineering
Languages : de
Pages : 450

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Book Description
Beton ist aufgrund seiner Vorteile der mit Abstand meistverwendete Baustoff: er ist formbar, preiswert und überall verfügbar. Kombiniert mit Bewehrung bietet dies eine immense Bandbreite an Eigenschaften und kann für eine Vielzahl von Zwecken angepasst werden. Damit ist Beton der Baustoff des 20. Jahrhunderts. Um der Baustoff des 21. Jahrhunderts zu sein, muss seine Nachhaltigkeit in den Fokus rücken. Bewehrte Betonkonstruktionen müssen mit geringerem Materialaufwand konstruiert werden, wobei ihr Tragfähigkeitspotential optimal ausgeschöpft werden muss. Computergestützte Methoden wie die Finite-Elemente-Methode (FEM) bieten wesentliche Werkzeuge, um das Ziel zu erreichen. In Kombination mit experimenteller Validierung ermöglichen sie ein tieferes Verständnis der Tragmechanismen. Im Vergleich zu herkömmlichen Ansätzen kann eine realistischere Abschätzung der Grenzzustände der Tragfähigkeit und der Gebrauchstauglichkeit erreicht werden. Dies ermöglicht eine deutlich verbesserte Ausnutzung der Baustoffe. Damit eröffnet sich auch ein weiterer Horizont für innovative Tragwerksentwürfe. Anspruchsvolle numerische Rechenverfahren werden aber in der Regel als "Black Boxes" bereitgestellt. Daten werden eingegeben, die Ausgaben ungeprüft übernommen, aber das Verständnis für die dazwischenliegenden Schritte ist oft rudimentär. Dies birgt die Gefahr von Fehlinterpretationen, um nicht zu sagen ungültigen Ergebnissen im Vergleich zu den getroffenen Problemdefinitionen. Das Risiko ist insbesondere bei nichtlinearen Problemen hoch. Bewehrter Beton weist als Verbundmaterial in seinen Grenzzuständen ein nichtlineares Verhalten auf, verursacht durch Verbund und nichtlineare Eigenschaften seiner Bestandteile. Seine Rissbildung ist ein reguläres Verhalten. In diesem Buch werden die Mechanismen des bewehrten Betons unter dem Blickwinkel numerischer Methoden aufgezeigt. So sollen auch "Black Boxes" transparent werden. Das Buch beschreibt entsprechende Methoden für Balken, Scheiben, Platten und Schalen im Rahmen von Quasi-Statik und Dynamik. Betonkriechen, Temperatureinwirkungen, Vorspannung, große Verformungen werden beispielhaft behandelt. Weiterhin werden aktuelle Materialmodelle für Beton dargestellt. Dabei werden sowohl die Möglichkeiten als auch die Fallstricke numerischer Methoden aufgezeigt. Die Theorie wird durch eine Vielzahl von Beispielen veranschaulicht. Die meisten von ihnen werden mit dem in Python implementierten und unter Open-Source-Bedingungen verfügbaren Softwarepaket ConFem durchgeführt.

Finite Element Model Updating Using Computational Intelligence Techniques

Finite Element Model Updating Using Computational Intelligence Techniques PDF Author: Tshilidzi Marwala
Publisher: Springer Science & Business Media
ISBN: 1849963231
Category : Technology & Engineering
Languages : en
Pages : 254

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Book Description
FEM updating allows FEMs to be tuned better to reflect measured data. It can be conducted using two different statistical frameworks: the maximum likelihood approach and Bayesian approaches. This book applies both strategies to the field of structural mechanics, using vibration data. Computational intelligence techniques including: multi-layer perceptron neural networks; particle swarm and GA-based optimization methods; simulated annealing; response surface methods; and expectation maximization algorithms, are proposed to facilitate the updating process. Based on these methods, the most appropriate updated FEM is selected, a problem that traditional FEM updating has not addressed. This is found to incorporate engineering judgment into finite elements through the formulations of prior distributions. Case studies, demonstrating the principles test the viability of the approaches, and. by critically analysing the state of the art in FEM updating, this book identifies new research directions.

Structural Dynamics in Practice

Structural Dynamics in Practice PDF Author: Arthur Bolton
Publisher: McGraw-Hill/Spanish Imports
ISBN:
Category : Science
Languages : en
Pages : 362

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Book Description
The purpose of this book is to show how basic structural theory and design methods in everyday use for static design can also be applied to dynamic load cases with little modification. It should help designers find the simplest way of either avoiding resonance entirely or reducing its effect.