Uncertainty Assessment Of Large Finite Element Systems PDF Download
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| Author | : Christian A. Schenk |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 184 |
| Release | : 2005-06-08 |
| Genre | : Technology & Engineering |
| ISBN | : 9783540253433 |
Download Uncertainty Assessment of Large Finite Element Systems Book in PDF, ePub and Kindle
The treatment of uncertainties in the analysis of engineering structures remains one of the premium challenges in modern structural mechanics. It is only in recent years that the developments in stochastic and deterministic computational mechanics began to be synchronized. To foster these developments, novel computational procedures for the uncertainty assessment of large finite element systems are presented in this monograph. The stochastic input is modeled by the so-called Karhunen-Loève expansion, which is formulated in this context both for scalar and vector stochastic processes as well as for random fields. Particularly for strongly non-linear structures and systems the direct Monte Carlo simulation technique has proven to be most advantageous as method of solution. The capabilities of the developed procedures are demonstrated by showing some practical applications.
| Author | : Bilal M Ayyub |
| Publisher | : World Scientific |
| Total Pages | : 437 |
| Release | : 1997-07-04 |
| Genre | : Computers |
| ISBN | : 9814497428 |
Download Uncertainty Modeling In Finite Element, Fatigue And Stability Of Systems Book in PDF, ePub and Kindle
The functionality of modern structural, mechanical and electrical or electronic systems depends on their ability to perform under uncertain conditions. Consideration of uncertainties and their effect on system behavior is an essential and integral part of defining systems. In eleven chapters, leading experts present an overview of the current state of uncertainty modeling, analysis and design of large systems in four major areas: finite and boundary element methods (common structural analysis techniques), fatigue, stability analysis, and fault-tolerant systems. The content of this book is unique; it describes exciting research developments and challenges in emerging areas, and provide a sophisticated toolbox for tackling uncertainty modeling in real systems.
| Author | : Vissarion Papadopoulos |
| Publisher | : Springer |
| Total Pages | : 151 |
| Release | : 2017-10-28 |
| Genre | : Science |
| ISBN | : 3319645285 |
Download Stochastic Finite Element Methods Book in PDF, ePub and Kindle
The book provides a self-contained treatment of stochastic finite element methods. It helps the reader to establish a solid background on stochastic and reliability analysis of structural systems and enables practicing engineers to better manage the concepts of analysis and design in the presence of uncertainty. The book covers the basic topics of computational stochastic mechanics focusing on the stochastic analysis of structural systems in the framework of the finite element method. The target audience primarily comprises students in a postgraduate program specializing in structural engineering but the book may also be beneficial to practicing engineers and research experts alike.
| Author | : Wenhui Mo |
| Publisher | : Bentham Science Publishers |
| Total Pages | : 178 |
| Release | : 2022-08-31 |
| Genre | : Science |
| ISBN | : 9815079077 |
Download Uncertain Analysis in Finite Elements Models Book in PDF, ePub and Kindle
This book explains uncertainty analysis for finite elements and general nonlinear problems. It starts with the fundamentals of the topic and progresses to complex methods through 9 chapters. Each chapter focuses on a specific, relevant topic and provides information in a structured reading format for advanced learners. The author explains different models relevant to the topic where applicable, in an effort to cover the diverse aspects of mathematical analysis. Topics covered in the book include: - Nonlinear stochastic finite element methods - Reliability calculations - Static analysis of interval finite element - Linear and nonlinear vibration analysis - Stochastic, random, fuzzy and mixed fields - Mixed finite element analysis Uncertainty Analysis in Finite Elements Models is an ideal reference for advanced courses in mathematical analysis and engineering that require students to understand the basics of uncertainty analysis and basic reliability calculations.
| Author | : Günter Hofstetter |
| Publisher | : Springer |
| Total Pages | : 268 |
| Release | : 2014-05-15 |
| Genre | : Technology & Engineering |
| ISBN | : 3319059335 |
Download Computational Engineering Book in PDF, ePub and Kindle
The book presents state-of-the-art works in computational engineering. Focus is on mathematical modeling, numerical simulation, experimental validation and visualization in engineering sciences. In particular, the following topics are presented: constitutive models and their implementation into finite element codes, numerical models in nonlinear elasto-dynamics including seismic excitations, multiphase models in structural engineering and multiscale models of materials systems, sensitivity and reliability analysis of engineering structures, the application of scientific computing in urban water management and hydraulic engineering, and the application of genetic algorithms for the registration of laser scanner point clouds.
| Author | : Peter Wriggers |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 393 |
| Release | : 2006-08-15 |
| Genre | : Science |
| ISBN | : 3540317619 |
Download Analysis and Simulation of Contact Problems Book in PDF, ePub and Kindle
This carefully edited book offers a state-of-the-art overview on formulation, mathematical analysis and numerical solution procedures of contact problems. The contributions collected in this volume summarize the lectures presented by leading scientists in the area of contact mechanics, during the 4th Contact Mechanics International Symposium (CMIS) held in Hannover, Germany, 2005.
| Author | : Raouf A. Ibrahim |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 288 |
| Release | : 2009-05-27 |
| Genre | : Technology & Engineering |
| ISBN | : 3642006299 |
Download Vibro-Impact Dynamics of Ocean Systems and Related Problems Book in PDF, ePub and Kindle
The aim of this International Symposium on Dynamics of Vibro-Impact Systems is to provide a forum for the discussion of recent developments in the theory and industrial applications of vibro-impact ocean systems. A special effort has been made to invite active researchers from engineering, science, and applied mathematics communities. This symposium has indeed updated engineers with recent analytical developments of vibro-impact dynamics and at the same time allowed engineers and industrial practitioners to alert mathematicians with their unresolved issues. The symposium was held in Troy, Michigan, during the period October 1-3, 2008. It included 28 presentations grouped as follows: The first group comprises of nine papers dealing with the interaction of ocean systems with slamming waves and floating ice. It also covers related topics such as sloshing-slamming dynamics, and non-smooth dynamics associated with offshore structures. Moreover, it includes control issues pertaining to marine surface vessels. The second group consists of fifteen papers treats the interaction of impact systems with friction and their control, Hertzian contact dynamics, parameter variation in vibro-impact oscillators, random excitation of vibro-impact systems, vibro-impact dampers, oscillators with a bouncing ball, limiting phase trajectory corresponding to energy exchange between the oscillator and external source, frequency-energy distribution in oscillators with impacts, and discontinuity mapping. The third group is covered in four papers and addresses some industrial applications such as hand-held percussion machines, rub-impact dynamics of rotating machinery, impact fatigue in joint structures.
| Author | : |
| Publisher | : |
| Total Pages | : 104 |
| Release | : 1992 |
| Genre | : |
| ISBN | : |
Download Probabilistic Finite Element Analysis Book in PDF, ePub and Kindle
The finite element method has been used extensively in structural analyses. Traditionally, the properties of the systems which have been modeled using finite elements have been assumed to be deterministic. The uncertainties in the structural response behavior estimates which result from uncertainties in the properties of the system have been accounted for in design using safety and reduction factors. As structures become more complex and industry makes use of materials such as composites, which are known to have random material properties, an alternative approach to design which quantifies the distributions in response may be required. Probabilistic finite element techniques, which are capable of assessing the distributions in response behavior for systems with random material properties, loads and boundary conditions are presented in this thesis. One particular method termed second-moment analysis is examined in detail. This method includes perturbation techniques and is used to compute the expected values and covariance matrices of probabilistic response behavior. Second-moment analyses in conjunction with the finite element method require as input the expected values of the random processes inherent to the system and their covariance matrices. Methods are also presented to compute these parameters for local element averages of the random processes which describe the uncertainty in the system. Implements probabilistic finite element techniques as developed in the study to predict the probabilistic response behavior of marine riser systems in which, certain aspects of the problem are considered probabilistic.
| Author | : Isaac Elishakoff |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 357 |
| Release | : 2013-07-30 |
| Genre | : Technology & Engineering |
| ISBN | : 3709113067 |
Download Nondeterministic Mechanics Book in PDF, ePub and Kindle
Table of contents: Stochastic methods in nonlinear structural dynamics.- Stochastic models of uncertainties in computational structural dynamics and structural acoustics.- The tale of stochastic linearization techniques: over half a century of progress.- Comprehensive modeling of uncertain systems using fuzzy set theory.- Bounding uncertainty in civil engineering: theoretical background and applications.- Combined methods in nondeterministic mechanics. In this book the current state of the art of nondeterministic mechanics in its various forms is presented. The topics range from stochastic problems to fuzzy sets; from linear to nonlinear problems; from specific methodologies to combinations of various techniques; from theoretical considerations to practical applications. It is specially designed to illuminate the various aspects of the three methodologies (probabilistic or stochastic modelling, fuzzy sets based analysis, antioptimization of structures) to deal with various uncertainties and deepen the discussion of their pros and cons.
| Author | : Alexander K. Belyaev |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 471 |
| Release | : 2010-12-02 |
| Genre | : Technology & Engineering |
| ISBN | : 9400702892 |
Download IUTAM Symposium on the Vibration Analysis of Structures with Uncertainties Book in PDF, ePub and Kindle
The Symposium was aimed at the theoretical and numerical problems involved in modelling the dynamic response of structures which have uncertain properties due to variability in the manufacturing and assembly process, with automotive and aerospace structures forming prime examples. It is well known that the difficulty in predicting the response statistics of such structures is immense, due to the complexity of the structure, the large number of variables which might be uncertain, and the inevitable lack of data regarding the statistical distribution of these variables. The Symposium participants presented the latest thinking in this very active research area, and novel techniques were presented covering the full frequency spectrum of low, mid, and high frequency vibration problems. It was demonstrated that for high frequency vibrations the response statistics can saturate and become independent of the detailed distribution of the uncertain system parameters. A number of presentations exploited this physical behaviour by using and extending methods originally developed in both phenomenological thermodynamics and in the fields of quantum mechanics and random matrix theory. For low frequency vibrations a number of presentations focussed on parametric uncertainty modelling (for example, probabilistic models, interval analysis, and fuzzy descriptions) and on methods of propagating this uncertainty through a large dynamic model in an effi cient way. At mid frequencies the problem is mixed, and various hybrid schemes were proposed. It is clear that a comprehensive solution to the problem of predicting the vibration response of uncertain structures across the whole frequency range requires expertise across a wide range of areas (including probabilistic and non-probabilistic methods, interval and info-gap analysis, statistical energy analysis, statistical thermodynamics, random wave approaches, and large scale computations) and this IUTAM symposium presented a unique opportunity to bring together outstanding international experts in these fields.
