Описание: This book treats the derivation and implementation of a unified particle finite element formulation for the solution of fluid and solid mechanics, Fluid-Structure Interaction (FSI) and coupled thermal problems.FSI problems are involved in many engineering branches, from aeronautics to civil and biomedical engineering. The numerical method proposed in this book has been designed to deal with a large part of these. In particular, it is capable of simulating accurately free-surface fluids interacting with structures that may undergo large displacements, suffer from thermo-plastic deformations and even melt. The method accuracy has been successfully verified in several numerical examples. The thesis also contains the application of the proposed numerical strategy for the simulation of a real industrial problem. This thesis, defended at the Universitat Politecnica de Catalunya in 2015, was selected (ex aequo) as the best PhD thesis in numerical methods in Spain for the year 2015 by the Spanish Society of Numerical Methods in Engineering (SEMNI).
Автор: Shabana Название: Computational Continuum Mechanics ISBN: 0521174384 ISBN-13(EAN): 9780521174381 Издательство: Cambridge Academ Рейтинг: Цена: 6018.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book presents the nonlinear theory of continuum mechanics and demonstrates its use in developing nonlinear computer formulations for large displacement dynamic analysis. Basic concepts used in continuum mechanics are presented and used to develop nonlinear general finite element formulations that can be effectively used in large displacement analysis.
Автор: Linderholt Название: Dynamics of Coupled Structures, Volume 4 ISBN: 3319746537 ISBN-13(EAN): 9783319746531 Издательство: Springer Рейтинг: Цена: 27950.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Chapter1. Techniques for Verification of Structural Acoustic Models, - Chapter2. Substructuring of Viscoelastic Subcomponents with Interface Reduction.- Chapter3. Parameter Estimation of Joint Models Using Global Optimization.- Chapter4. Real Time Hybrid Simulation of an Unmanned Aerial Vehicle.- Chapter5. An Integration of Mixed Contact Formulation with Model-Reduction Techniques.- Chapter6. Identification Reassembly Uncertainties for a Basic Lap Joint.- Chapter7. Effect of Far-field Structure on Joint Properties.- Chapter8. Real-time Hybrid Model Testing of Moored Floating Structures Using Nonlinear Finite Element Simulations. Chapter9. DIC Measurement of the Kinematics of a Friction Damper for Turbine Applications.- Chapter10. A Simultaneous Iterative Scheme for the Craig-Bampton Reduction Based Substructuring.- Chapter11. Using Blocked Force Data for Vibro-Acoustic Prediction and Simulation.- Chapter12. CMS with Large Contact Patches.- Chapter13. In Situ Measurements of Contact Pressure for Jointed Interfaces During Dynamic Loading Experiments.- Chapter14. Dual Craig-Bampton Method with Reduction of Interface Coordinates.- Chapter15. Substructuring of a Nonlinear Beam Using a Modal Iwan Framework, Part I: Nonlinear Modal Model Identification.- Chapter16. Substructuring of a Nonlinear Beam Using a Modal Iwan Framework, Part II: Nonlinear Modal Substructuring.- Chapter17. Dynamic Decoupling of Nonlinear Systems.- Chapter18. Nonlinear Substructuring Using Fixed Interface Nonlinear Normal Modes.- Chapter19. Dynamic Substructuring of Geometrically Nonlinear Finite Element Models Using Residual Flexibility Modes.- Chapter20. Optimal Transformation of Frequency Response Functions on Interface Deformation Modes.- Chapter21. A Recursive Coupling-decoupling Approach to Improve Experimental Frequency Based Substructuring Results.- Chapter22. Experimental Assessment of the Influence of Interface Geometries on Structural Dynamic Response.- Chapter23. Nonlinear Finite Element Model Updating, Part I: Experimental Techniques and Nonlinear Modal Model Parameter Extraction.- Chapter24. A Simpler Formulation for Effective Mass Calculated from Experimental Free Mode Shapes of a Test Article on a Fixture.- Chapter25. Nonlinear Finite Element Model Updating, Part II: Implementation and Simulation.- Chapter26. A Benchmark Structure for Validation of Experimental Substructuring, Transfer Path Analysis and Source Characterisation Techniques.- Chapter27. Nonlinear Modal Substructuring of Panel and Stiffener Assemblies via Characteristic Constraint Modes.- Chapter28. Experimental Evaluation of Multi-functional Nonlinear Floor Isolation Systems.- Chapter29. Variability of Dynamic Response in Jointed Structures.- Chapter30. Predicting the Dynamics of Flexible Space Payloads Under Different Boundary Conditions Through Substructure Decoupling.- Chapter31. Evolutionary Identification of Block-Structured Systems.- Chapter32. Modal Analysis of Transmission Line Cables.
Описание: This volume gathers selected contributions from the participants of the Banff International Research Station (BIRS) workshop Coupled Mathematical Models for Physical and Biological Nanoscale Systems and their Applications, who explore various aspects of the analysis, modeling and applications of nanoscale systems, with a particular focus on low dimensional nanostructures and coupled mathematical models for their description.Due to the vastness, novelty and complexity of the interfaces between mathematical modeling and nanoscience and nanotechnology, many important areas in these disciplines remain largely unexplored. In their efforts to move forward, multidisciplinary research communities have come to a clear understanding that, along with experimental techniques, mathematical modeling and analysis have become crucial to the study, development and application of systems at the nanoscale.The conference, held at BIRS in autumn 2016, brought together experts from three different communities working in fields where coupled mathematical models for nanoscale and biosystems are especially relevant: mathematicians, physicists (both theorists and experimentalists), and computational scientists, including those dealing with biological nanostructures. Its objectives: summarize the state-of-the-art; identify and prioritize critical problems of major importance that require solutions; analyze existing methodologies; and explore promising approaches to addressing the challenges identified.The contributions offer up-to-date introductions to a range of topics in nano and biosystems, identify important challenges, assess current methodologies and explore promising approaches. As such, this book will benefit researchers in applied mathematics, as well as physicists and biologists interested in coupled mathematical models and their analysis for physical and biological nanoscale systems that concern applications in biotechnology and medicine, quantum information processing and optoelectronics.
Автор: Matt Allen; Randall L. Mayes; Daniel J. Rixen Название: Dynamics of Coupled Structures, Volume 4 ISBN: 3319366602 ISBN-13(EAN): 9783319366609 Издательство: Springer Рейтинг: Цена: 20896.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
Robust Stability and Performance Analysis for Multi-Actuator Real-Time Hybrid Substructuring.- Effect of Actuator Delay on Real-Time Hybrid Simulation Involving Multiple Experimental Substructures.- Effective Control of a Six Degree of Freedom Shake Table.- Mathematical Equivalence Between Dynamic Substructuring and Feedback Control Theory.- Feasibility of a Transmission Simulator Technique for Dynamic Real Time Substructuring.- Ignoring Rotational DoFs in Decoupling Structures Connected Through Flexotorsional Joints.- A Comparison of two Component TPA Approaches for Steering Gear Noise Prediction.- Experimental Dynamic Substructuring of a Catalytic Converter System Using the Transmission Simulator Method.- A Modal Craig-Bampton Substructure for Experiments, Analysis, Control and Specifications.- A Comparison of the Dynamic Behavior of Three Sets of the Ampair 600 Wind Turbine.- Ampair 600 Wind Turbine 3-Bladed Assembly Substructuring Using the Transmission Simulator Method.- Quantifying Epistemic and Aleatoric Uncertainty in the Ampair 600 Wind Turbine.- A Craig-bampton Experimental Dynamic Substructure Using the Transmission Simulator Method.- A Parallel Solution Method for Structural Dynamics Response Analysis.- Structural Coupling Of Two-Nonlinear Structures.
Описание: This book presents selected papers from the 3rd International Workshop on Computational Engineering held in Stuttgart from October 6 to 10, 2014, bringing together innovative contributions from related fields with computer science and mathematics as an important technical basis among others.
Описание: 1 Introduction.- 1.1 Objectives.- 1.2 State of the art.- 1.2.1 Eulerian and Lagrangian approaches for free surface flow analysis .- 1.2.2 Stabilization techniques.- 1.2.3 Algorithms for FSI problems.- 1.3 Numerical model.- 1.3.1 Reasons.- 1.3.2 Essential features.- 1.3.3 Outline.- 1.4 Publications.- 2 Velocity-based formulations for compressible materials.- 2.1 Velocity formulation.- 2.1.1 From the local form to the spatial semi-discretization.- 2.1.2 Time integration.- 2.1.3 Linearization.- 2.1.4 Incremental solution scheme.- 2.2 Mixed velocity-pressure formulation.- 2.2.1 Quasi-incompressible form of the continuity equation.- 2.2.2 Solution method.- 2.3 Hypoelasticity.- 2.3.1 Velocity formulation for hypoelastic solids.- 2.3.2 Mixed Velocity-Pressure formulation for hypoelastic solids.- 2.3.3 Theory of plasticity.- 2.3.3.1 Hypoelastic-plastic materials.- 2.3.4 Validation examples.- 2.4 Summary and conclusions.- 3 Unified stabilized formulation for quasi-incompressible materials.- 3.1 Stabilized FIC form of the mass balance equation.- 3.1.1 Governing equations.- 3.1.2 FIC mass balance equation in space and in time.- 3.1.3 FIC stabilized local form of the mass balance equation.- 3.1.4 Variational form.- 3.1.5 FEM discretization and matrix form.- 3.2 Solution scheme for quasi-incompressible Newtonian fluids.- 3.2.1 Governing equations.- 3.2.2 Solution scheme.- 3.3 Solution scheme for quasi-incompressible hypoelastic solids.- 3.4 Free surface flow analysis.- 3.4.1 The Partiele Finite Element Method.- 3.4.1.1 Remeshing.- 3.4.1.2 Basic steps.- 3.4.1.3 Advantages and disadvantages.- 3.4.2 Mass conservation analysis.- 3.4.2.1 Numerical examples.- 3.4.3 Analysis of the conditioning of the solution scheme.- 3.4.3.1 Drawbacks associated to the real bulk modulus.- 3.4.3.2 Optimum value for the pseudo bulk modulus.- 3.4.3.3 Numerical examples.- 3.5 Validation examples.- 3.5.1 Validation of the Unified formulation for Newtonian fluids.- 3.5.2 Validation of the Unified formulation for quasi-incompressible hypoelastic solids.- 3.6 Summary and conclusions.- 4 Unified formulation for F SI problems.- 4.1 Introduction.- 4.2 FSI algorithm.- 4.3 Coupling with the Velocity formulation for the solid.- 4.4 Coupling with the mixed Velocity-Pressure formulation for the solid.- 4.5 Numerical examples.- 4.6 Summary and conclusions.- 5 Coupled thermal-mechanical formulation.- 5.1 Introduction.- 5.2 Heat problem.- 5.2.1 FEM discretization and solution for a time step.- 5.3 Thermal coupling.- 5.3.1 Numerical examples.- 5.4 Phase change.- 5.4.1 Numerical example: melting of an ice block.- 5.5 Summary and conclusions.- 6 Industrial application: PFEM Analysis Model of NPP Severe Accident.- 6.1 Introduction.- 6.1.1 Assumptions allowed by the specification.- 6.2 Numerical method.- 6.3 Basic Model.- 6.3.1 Problem data.- 6.3.2 Preliminary study.- 6.3.3 Numerical results.- 6.4 Detailed model.- 6.4.1 Problem data.- 6.4.2 Preliminary study.- 6.4.3 Numerical results.- 6.5 Summary and conclusions.- 7 Conclusions and future lines of research.- 7.1 Contributions.- 7.2 Lines for future work.
Автор: Sergio R. Idelsohn Название: Numerical Simulations of Coupled Problems in Engineering ISBN: 3319061356 ISBN-13(EAN): 9783319061351 Издательство: Springer Рейтинг: Цена: 20962.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book presents and discusses mathematical models, numerical methods and computational techniques used for solving coupled problems in science and engineering.
Описание: The main focus of the book is to convey modern techniques applied within the range of computational mechanics of beams, plates and shells. The topics of interest are wide ranging and include computational aspects of nonlinear theories of shells and beams.
Автор: Sergio R. Idelsohn Название: Numerical Simulations of Coupled Problems in Engineering ISBN: 3319381083 ISBN-13(EAN): 9783319381084 Издательство: Springer Рейтинг: Цена: 18284.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book presents and discusses mathematical models, numerical methods and computational techniques used for solving coupled problems in science and engineering.
Part I Introduction: 1 The COMSON Project: Michael Gьnther and Uwe Feldmann.- Part II Partial Differential Algebraic Equations: 2 PDAE Modeling and Discretization: Giuseppe Alм, Massimiliano Culpo, Roland Pulch, Vittorio Romano and Sebastian Schцps.- 3 Simulation of Coupled PDAEs - Dynamic Iteration and Multirate Simulation: Giuseppe Alм, Andreas Bartel, Michael Gьnther, Vittorio Romano and Sebastian Schцps.- Part III Model Order Reduction: 4 Model Order Reduction - Methods, Concepts and Properties: Athanasios C. Antoulas, Roxana Ionutiu, Nelson Martins, E. Jan W. ter Maten, Kasra Mohaghegh, Roland Pulch, Joost Rommes, Maryam Saadvandi and Michael Striebel.- 5 Parameterized Model Order Reduction: Gabriela Ciuprina, Jorge Fernбndez Villena, Daniel Ioan, Zoran Ilievski, Sebastian Kula, E. Jan W. ter Maten, Kasra Mohaghegh, Roland Pulch, Wil H.A. Schilders, L. Miguel Silveira, Alexandra, Stefбnescu and Michael Striebel.- 6 Advanced topics in Model Order Reduction: Davit Harutyunyan, Roxana Ionutiu, E. Jan W. ter Maten, Joost Rommes, Wil H.A. Schilders and Michael Striebel.- Part IV Optimization: 7 Optimization Methods and Applications to microelectronics CAD: Salvatore Rinaudo, Valeria Cinnera Martino, Franco Fiorante, Giovanni Stracquadanio and Giuseppe Nicosia.- Part V COMSON Methodology: 8 COMSON Demonstrator Platform: Georg Denk, Tamara Bechtold, Massimiliano Culpo, Carlo de Falco, and Alexander Rusakov.- 9 eLearning in Industrial Mathematics with applications to Nanoelectronics: Giuseppe Alм, Eleonora Bilotta, Lorella Gabriele, Pietro Pantano, Josй Sepъlveda, Rocco Servidio, and Alexander Vasenev.- Index.
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