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Methods And Tools For Parametric Modeling And Simulation Of Microsystems Based On Finite Element Methods And Order Reduction Technologies
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Book Synopsis Methods and Tools for Parametric Modeling and Simulation of Microsystems Based on Finite Element Methods and Order Reduction Technologies by : Vladimir A. Kolchužin
Download or read book Methods and Tools for Parametric Modeling and Simulation of Microsystems Based on Finite Element Methods and Order Reduction Technologies written by Vladimir A. Kolchužin and published by . This book was released on 2010 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Methods and Tools for Parametric Modeling and Simulation of Microsystems Based on Finite Element Methods and Order Reduction Technologies by :
Download or read book Methods and Tools for Parametric Modeling and Simulation of Microsystems Based on Finite Element Methods and Order Reduction Technologies written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The thesis deals with advanced parametric modeling technologies based on differentiation of the finite element equations which account for parameter variations in a single FE run. The key idea of the new approach is to compute not only the governing system matrices of the FE problem but also high order partial derivatives with regard to design parameters by means of automatic differentiation. As result, Taylor vectors of the system's response can be expanded in the vicinity of the initial position capturing dimensions and physical parameter. A novel approaches for the parametric MEMS simulation have been investigated for mechanical, electrostatic and fluidic domains in order to improve the computational efficiency. Objective of reduced order modeling is to construct a simplified model which approximates the original system with reasonable accuracy for system level design of MEMS. The modal superposition technique is most suitable for system with flexible mechanical components because the deformation state of any flexible system can be accurately described by a linear combination of its lowest eigenvectors. The developed simulation approach using parametric FE analyses to extract basis functions have been applied for parametric reduced order modeling. The successful implementation of a derivatives based technique for parameterization of macromodel by the example of microbeam and for exporting this macromodel into MATLAB/Similink to simulate dynamical behavior has been reported.
Book Synopsis Model Order Reduction Techniques with Applications in Finite Element Analysis by : Zu-Qing Qu
Download or read book Model Order Reduction Techniques with Applications in Finite Element Analysis written by Zu-Qing Qu and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite the continued rapid advance in computing speed and memory the increase in the complexity of models used by engineers persists in outpacing them. Even where there is access to the latest hardware, simulations are often extremely computationally intensive and time-consuming when full-blown models are under consideration. The need to reduce the computational cost involved when dealing with high-order/many-degree-of-freedom models can be offset by adroit computation. In this light, model-reduction methods have become a major goal of simulation and modeling research. Model reduction can also ameliorate problems in the correlation of widely used finite-element analyses and test analysis models produced by excessive system complexity. Model Order Reduction Techniques explains and compares such methods focusing mainly on recent work in dynamic condensation techniques: - Compares the effectiveness of static, exact, dynamic, SEREP and iterative-dynamic condensation techniques in producing valid reduced-order models; - Shows how frequency shifting and the number of degrees of freedom affect the desirability and accuracy of using dynamic condensation; - Answers the challenges involved in dealing with undamped and non-classically damped models; - Requires little more than first-engineering-degree mathematics and highlights important points with instructive examples. Academics working in research on structural dynamics, MEMS, vibration, finite elements and other computational methods in mechanical, aerospace and structural engineering will find Model Order Reduction Techniques of great interest while it is also an excellent resource for researchers working on commercial finite-element-related software such as ANSYS and Nastran.
Author :Bartlomiej F. Romanowicz Publisher :Springer Science & Business Media ISBN 13 :146155621X Total Pages :156 pages Book Rating :4.4/5 (615 download)
Book Synopsis Methodology for the Modeling and Simulation of Microsystems by : Bartlomiej F. Romanowicz
Download or read book Methodology for the Modeling and Simulation of Microsystems written by Bartlomiej F. Romanowicz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past two decades, technologies for microsystems fabrication have made considerable progress. This has made possible a large variety of new commercial devices ranging, for example, from integrated pressure and acceleration microsensors to active micromirror arrays for image projection. In the near future, there will be a number of new devices, which will be commercialized in many application areas. The field of microsystems is characterized by its wide diversity, which requires a multidisciplinary approach for design and processes as well as in application areas. Although there is a common technological background derived from integrated circuits, it is clear that microsystems will require additional application-specific technologies. Since most microsystem technologies are based on batch processing and dedicated to mass production, prototyping is likely to be an expensive and time-consuming step. It is recognized that standardization of the processes as well as of the design tools will definitely help reduce the entry cost of microsystems. This creates a very challenging situation for the design, modeling and simulation of microsystems. Methodology for the Modeling and Simulation of Microsystems is the first book to give an overview of the problems associated with modeling and simulation of microsystems. It introduces a new methodology, which is supported by several examples. It should provide a useful starting point for both scientists and engineers seeking background information for efficient design of microsystems.
Book Synopsis Finite Element Method Simulation of 3D Deformable Solids by : Eftychios Sifakis
Download or read book Finite Element Method Simulation of 3D Deformable Solids written by Eftychios Sifakis and published by Springer Nature. This book was released on 2022-06-01 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book serves as a practical guide to simulation of 3D deformable solids using the Finite Element Method (FEM). It reviews a number of topics related to the theory and implementation of FEM approaches: measures of deformation, constitutive laws of nonlinear materials, tetrahedral discretizations, and model reduction techniques for real-time simulation. Simulations of deformable solids are important in many applications in computer graphics, including film special effects, computer games, and virtual surgery. The Finite Element Method has become a popular tool in many such applications. Variants of FEM catering to both offline and real-time simulation have had a mature presence in computer graphics literature. This book is designed for readers familiar with numerical simulation in computer graphics, who would like to obtain a cohesive picture of the various FEM simulation methods available, their strengths and weaknesses, and their applicability in various simulation scenarios. The book is also a practical implementation guide for the visual effects developer, offering a lean yet adequate synopsis of the underlying mathematical theory. Chapter 1 introduces the quantitative descriptions used to capture the deformation of elastic solids, the concept of strain energy, and discusses how force and stress result as a response to deformation. Chapter 2 reviews a number of constitutive models, i.e., analytical laws linking deformation to the resulting force that has successfully been used in various graphics-oriented simulation tasks. Chapter 3 summarizes how deformation and force can be computed discretely on a tetrahedral mesh, and how an implicit integrator can be structured around this discretization. Finally, chapter 4 presents the state of the art in model reduction techniques for real-time FEM solid simulation and discusses which techniques are suitable for which applications. Topics discussed in this chapter include linear modal analysis, modal warping, subspace simulation, and domain decomposition.
Book Synopsis Process Modelling and Simulation with Finite Element Methods by : William B. J. Zimmerman
Download or read book Process Modelling and Simulation with Finite Element Methods written by William B. J. Zimmerman and published by World Scientific. This book was released on 2004 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a systematic description and case studies of chemical engineering modelling and simulation based on the MATLAB/FEMLAB tools, in support of selected topics in undergraduate and postgraduate programmes that require numerical solution of complex balance equations (ordinary differential equations, partial differential equations, nonlinear equations, integro-differential equations). These systems arise naturally in analysis of transport phenomena, process systems, chemical reactions and chemical thermodynamics, and particle rate processes. Templates are given for modelling both state-of-the-art research topics (e.g. microfluidic networks, film drying, multiphase flow, population balance equations) and case studies of commonplace design calculations -- mixed phase reactor design, heat transfer, flowsheet analysis of unit operations, flash distillations, etc. The great strength of this book is that it makes modelling and simulating in the MATLAB/FEMLAB environment approachable to both the novice and the expert modeller.
Book Synopsis Multiscale Model Reduction by : Eric Chung
Download or read book Multiscale Model Reduction written by Eric Chung and published by Springer Nature. This book was released on 2023-06-07 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph is devoted to the study of multiscale model reduction methods from the point of view of multiscale finite element methods. Multiscale numerical methods have become popular tools for modeling processes with multiple scales. These methods allow reducing the degrees of freedom based on local offline computations. Moreover, these methods allow deriving rigorous macroscopic equations for multiscale problems without scale separation and high contrast. Multiscale methods are also used to design efficient solvers. This book offers a combination of analytical and numerical methods designed for solving multiscale problems. The book mostly focuses on methods that are based on multiscale finite element methods. Both applications and theoretical developments in this field are presented. The book is suitable for graduate students and researchers, who are interested in this topic.
Book Synopsis High Order Finite Elements for Microsystems Simulation by : Muhammad Razi Abdul Rahman
Download or read book High Order Finite Elements for Microsystems Simulation written by Muhammad Razi Abdul Rahman and published by Cuvillier Verlag. This book was released on 2008 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :William B J Zimmerman Publisher :World Scientific Publishing Company ISBN 13 :9813106735 Total Pages :434 pages Book Rating :4.8/5 (131 download)
Book Synopsis Multiphysics Modeling With Finite Element Methods by : William B J Zimmerman
Download or read book Multiphysics Modeling With Finite Element Methods written by William B J Zimmerman and published by World Scientific Publishing Company. This book was released on 2006-10-25 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Finite element methods for approximating partial differential equations that arise in science and engineering analysis find widespread application. Numerical analysis tools make the solutions of coupled physics, mechanics, chemistry, and even biology accessible to the novice modeler. Nevertheless, modelers must be aware of the limitations and difficulties in developing numerical models that faithfully represent the system they are modeling.This textbook introduces the intellectual framework for modeling with Comsol Multiphysics, a package which has unique features in representing multiply linked domains with complex geometry, highly coupled and nonlinear equation systems, and arbitrarily complicated boundary, auxiliary, and initial conditions. But with this modeling power comes great opportunities and great perils.Progressively, in the first part of the book the novice modeler develops an understanding of how to build up complicated models piecemeal and test them modularly. The second part of the book introduces advanced analysis techniques. The final part of the book deals with case studies in a broad range of application areas including nonlinear pattern formation, thin film dynamics and heterogeneous catalysis, composite and effective media for heat, mass, conductivity, and dispersion, population balances, tomography, multiphase flow, electrokinetic, microfluidic networks, plasma dynamics, and corrosion chemistry.As a revision of Process Modeling and Simulation with Finite Element Methods, this book uses the very latest features of Comsol Multiphysics. There are new case studies on multiphase flow with phase change, plasma dynamics, electromagnetohydrodynamics, microfluidic mixing, and corrosion. In addition, major improvements to the level set method for multiphase flow to ensure phase conservation is introduced.
Book Synopsis Smart Systems Integration and Simulation by : Nicola Bombieri
Download or read book Smart Systems Integration and Simulation written by Nicola Bombieri and published by Springer. This book was released on 2016-02-17 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book-presents new methods and tools for the integration and simulation of smart devices. The design approach described in this book explicitly accounts for integration of Smart Systems components and subsystems as a specific constraint. It includes methodologies and EDA tools to enable multi-disciplinary and multi-scale modeling and design, simulation of multi-domain systems, subsystems and components at all levels of abstraction, system integration and exploration for optimization of functional and non-functional metrics. By covering theoretical and practical aspects of smart device design, this book targets people who are working and studying on hardware/software modelling, component integration and simulation under different positions (system integrators, designers, developers, researchers, teachers, students etc.). In particular, it is a good introduction to people who have interest in managing heterogeneous components in an efficient and effective way on different domains and different abstraction levels. People active in smart device development can understand both the current status of practice and future research directions. · Provides a comprehensive overview of smart systems design, focusing on design challenges and cutting-edge solutions; · Enables development of a co-simulation and co-design environment that accounts for the peculiarities of the basic subsystems and components to be integrated; · Describes development of modeling and design techniques, methods and tools that enable multi-domain simulation and optimization at various levels of abstraction and across different technological domains.
Book Synopsis Adaptive Model Order Reduction Techniques for the Broadband Finite Element Simulation of Electromagnetic Structures by : Alwin Schultschik
Download or read book Adaptive Model Order Reduction Techniques for the Broadband Finite Element Simulation of Electromagnetic Structures written by Alwin Schultschik and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development and Application of the Finite Element Method based on MatLab by : Herbert Baaser
Download or read book Development and Application of the Finite Element Method based on MatLab written by Herbert Baaser and published by Springer. This book was released on 2010-05-19 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: The intention of this booklet is a brief but general introduction into the treatment of the Finite Element Method (FEM). The FEM has become the leading method in computer–oriented mechanics, so that many scienti?c brancheshavegrownup besides overthelastdecades. Nevertheless,theFEM today is a question of economy. On the one hand its industrial application is forced to reduce product development costs and time, on the other hand a large number of commercial FEM codes and a still growing number of software for e?ective pre– and postprocessors are available in the meantime. Due to that, today it is a quite challenging task to operate with all these di?erent tools at the same time and to understand all handling and so- tion techniques developed over the last years. So, we want to help in getting a deeper insight into the main “interfaces” between the “customers of the FEM” and the codes itself by providing a totally open structured FE–code based on Matlab, which is a very powerful tool in operating with matrix based formulations. That idea and conditions forced us some years ago to initiateDAEdalon as a tool for general FE developments in research appli- tions. In spite of still existing high sophisticated – mostly commercial – FE codes, the success and the acceptance of such a structured tool justify that decision afterwards more and more.
Book Synopsis Finite Element Modeling for Materials Engineers Using MATLAB® by : Oluleke Oluwole
Download or read book Finite Element Modeling for Materials Engineers Using MATLAB® written by Oluleke Oluwole and published by Springer Science & Business Media. This book was released on 2011-07-23 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: The finite element method is often used for numerical computation in the applied sciences. It makes a major contribution to the range of numerical methods used in the simulation of systems and irregular domains, and its importance today has made it an important subject of study for all engineering students. While treatments of the method itself can be found in many traditional finite element books, Finite Element Modeling for Materials Engineers Using MATLAB® combines the finite element method with MATLAB to offer materials engineers a fast and code-free way of modeling for many materials processes. Finite Element Modeling for Materials Engineers Using MATLAB® covers such topics as: developing a weak formulation as a prelude to obtaining the finite element equation, interpolation functions, derivation of elemental equations, and use of the Partial Differential Equation ToolboxTM. Exercises are given based on each example and m-files based on the examples are freely available to readers online. Researchers, advanced undergraduate and postgraduate students, and practitioners in the fields of materials and metallurgy will find Finite Element Modeling for Materials Engineers Using MATLAB® a useful guide to using MATLAB for engineering analysis and decision-making.
Book Synopsis Simulation and Design of Microsystems and Microstructures by : Robert A. Adey
Download or read book Simulation and Design of Microsystems and Microstructures written by Robert A. Adey and published by Computational Mechanics. This book was released on 1995 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Parametric Modeling with Siemens NX (Spring 2020 Edition) by : Randy Shih
Download or read book Parametric Modeling with Siemens NX (Spring 2020 Edition) written by Randy Shih and published by SDC Publications. This book was released on 2020-06-08 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary goal of Parametric Modeling with Siemens NX is to introduce the aspects of designing with Solid Modeling and Parametric Modeling. This text is intended to be used as a practical training guide for students and professionals. This text uses Siemens NX as the modeling tool, and the chapters proceed in a pedagogical fashion to guide you from constructing basic solid models to building intelligent mechanical designs, creating multi-view drawings and assembly models. This text takes a hands-on, exercise-intensive approach to all the important Parametric Modeling techniques and concepts. This textbook contains a series of fifteen tutorial style lessons designed to introduce beginning CAD users to NX. This text is also helpful to NX users upgrading from a previous release of the software. The solid modeling techniques and concepts discussed in this text are also applicable to other parametric feature-based CAD packages. The basic premise of this book is that the more designs you create using NX, the better you learn the software. With this in mind, each lesson introduces a new set of commands and concepts, building on previous lessons. This book does not attempt to cover all of NX’s features, only to provide an introduction to the software. It is intended to help you establish a good basis for exploring and growing in the exciting field of Computer Aided Engineering. This book also introduces you to the general principles of 3D printing including a brief history of 3D printing, the types of 3D printing technologies, commonly used filaments, and the basic procedure for printing a 3D model. 3D printing makes it easier than ever for anyone to start turning their designs into physical objects, and by the end of this book you will be ready to start printing out your own designs.
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Algorithms for Virtual Reconstruction and Finite Element Modeling of Materials with Complex Microstructures by : Ming Yang (Software engineer)
Download or read book Advanced Algorithms for Virtual Reconstruction and Finite Element Modeling of Materials with Complex Microstructures written by Ming Yang (Software engineer) and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In computational materials science, finite element (FE) modeling and simulation are widely used to determine the material behavior and mechanisms, which can further guide the cost-effective design of materials with targeted properties. However, modeling materials with complex microstructures always confronts high labor costs, which can be attributed to two key challenges: (i) generating realistic microstructures of the material with arbitrary morphologies and converting them into appropriate conforming FE meshes; (ii) creating high-fidelity models and retaining computational efficiency. In this thesis, an automated computational framework is introduced to overcome these challenges by implementing novel microstructure reconstruction, reduced-order FE model, homogenization-based statistical analysis, and other advanced numerical techniques, for the modeling of materials with complex microstructures. As the first step, a new set of virtual reconstruction algorithms are introduced for the creation of realistic geometrical models of the microstructure. These algorithms employ a Non-Uniform Rational B-Spline (NURBS) function to explicitly represent the material morphologies from image data. For reconstructing the initial microstructure, a packing algorithm that utilizes bounding box representation of geometry is firstly presented to efficiently check the intersection between inclusions. An optimization phase is then implemented to build the final microstructural model, relying either on the Genetic Algorithm to selectively eliminate some of the inclusions or their sequential relocation within the initial microstructure. This reconstruction procedure is a high integration with mesh generation algorithms to facilitate subsequent FE analysis. Several high-fidelity FE models and advanced numerical techniques in this computational framework are presented to model materials and analyze their micromechanical behaviors. A reduced-order FE model is introduced for simulating a fibrous material, while the high nonlinearity of this nonwoven entangled material due to large deformations and contact friction between fibers limits the application of the standard FE method. Another example presents a continuum ductile damage model to simulate the failure response of a carbon nanofiber reinforced composite under uniaxial tensile and compressive loadings, together with a homogenization-based statistical analysis for relating statistical variations of geometric descriptors to mesoscopic mechanical behaviors. Furthermore, to model materials with complex microstructures which prohibit the use of a direct numerical simulation, we review the performance of the non-overlapping and overlapping Schwarz domain decompositions methods (DDMs) for simulating the linear elastic and elastoplastic response of materials. These methods are chosen as the goal is to establish a black-box DDM solver capable of integrating with any commercial FE software, allowing only the use of nodal forces and displacements along each subdomain boundary as input/output parameters. For the non-overlapping Schwarz method, the main implementation challenges are associated with the complex material microstructure, causing sub-domain boundaries intersecting with multiple material interfaces. This results in high-stress concentrations along multiple sub-domain boundaries used for partitioning the domain, which could significantly slow down or even prohibit the convergence of the non-overlapping Schwarz method. The remedy to such convergence difficulties is to implement the overlapping Schwarz method, with a high overlap percentage between adjacent subdomains to achieve a reasonable computational cost.
