IMPROVED EQUIVALENT LINEARIZATION IMPLEMENTATIONS USING NONLINEAR STIFFNESS EVALUATION... NASA/TM-2001-210838... JUN. 20, 2001

IMPROVED EQUIVALENT LINEARIZATION IMPLEMENTATIONS USING NONLINEAR STIFFNESS EVALUATION... NASA/TM-2001-210838... JUN. 20, 2001 PDF Author:
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Languages : en
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Improved Equivalent Linearization Implementations Using Nonlinear Stiffness Evaluation

Improved Equivalent Linearization Implementations Using Nonlinear Stiffness Evaluation PDF Author: Stephen A. Rizzi
Publisher: DIANE Publishing
ISBN: 142899582X
Category : Random vibration
Languages : en
Pages : 66

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Book Description
This report documents two new implementations of equivalent linearization for solving geometrically nonlinear random vibration problems of complicated structures. The implementations are given the acronym ELSTEP, for "Equivalent Linearization using a Stiffness Evaluation Procedure." Both implementations of ELSTEP are fundamentally the same in that they use a novel nonlinear stiffness evaluation procedure to numerically compute otherwise inaccessible nonlinear stiffness terms from commercial finite element programs. The commercial finite element program MSC/NASTRAN (NASTRAN) was chosen as the core of ELSTEP. The FORTRAN implementation calculates the nonlinear stiffness terms and performs the equivalent linearization analysis outside of NASTRAN.

Materials Handbook

Materials Handbook PDF Author: François Cardarelli
Publisher: Springer Science & Business Media
ISBN: 1846286697
Category : Technology & Engineering
Languages : en
Pages : 1365

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Book Description
This unique and practical book provides quick and easy access to data on the physical and chemical properties of all classes of materials. The second edition has been much expanded to include whole new families of materials while many of the existing families are broadened and refined with new material and up-to-date information. Particular emphasis is placed on the properties of common industrial materials in each class. Detailed appendices provide additional information, and careful indexing and a tabular format make the data quickly accessible. This book is an essential tool for any practitioner or academic working in materials or in engineering.

Scientific Computing in Electrical Engineering SCEE 2010

Scientific Computing in Electrical Engineering SCEE 2010 PDF Author: Bastiaan Michielsen
Publisher: Springer Science & Business Media
ISBN: 3642224539
Category : Mathematics
Languages : en
Pages : 441

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Book Description
Selected from papers presented at the 8th Scientific Computation in Electrical Engineering conference in Toulouse in 2010, the contributions to this volume cover every angle of numerically modelling electronic and electrical systems, including computational electromagnetics, circuit theory and simulation and device modelling. On computational electromagnetics, the chapters examine cutting-edge material ranging from low-frequency electrical machine modelling problems to issues in high-frequency scattering. Regarding circuit theory and simulation, the book details the most advanced techniques for modelling networks with many thousands of components. Modelling devices at microscopic levels is covered by a number of fundamental mathematical physics papers, while numerous papers on model order reduction help engineers and systems designers to bring their modelling of industrial-scale systems within the reach of present-day computational power. Complementing these more specific papers, the volume also contains a selection of mathematical methods which can be used in any application domain.

Uncertainty Quantification

Uncertainty Quantification PDF Author: Christian Soize
Publisher: Springer
ISBN: 3319543393
Category : Computers
Languages : en
Pages : 344

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Book Description
This book presents the fundamental notions and advanced mathematical tools in the stochastic modeling of uncertainties and their quantification for large-scale computational models in sciences and engineering. In particular, it focuses in parametric uncertainties, and non-parametric uncertainties with applications from the structural dynamics and vibroacoustics of complex mechanical systems, from micromechanics and multiscale mechanics of heterogeneous materials. Resulting from a course developed by the author, the book begins with a description of the fundamental mathematical tools of probability and statistics that are directly useful for uncertainty quantification. It proceeds with a well carried out description of some basic and advanced methods for constructing stochastic models of uncertainties, paying particular attention to the problem of calibrating and identifying a stochastic model of uncertainty when experimental data is available. This book is intended to be a graduate-level textbook for students as well as professionals interested in the theory, computation, and applications of risk and prediction in science and engineering fields.

Nonlinear Structural Dynamics and Damping

Nonlinear Structural Dynamics and Damping PDF Author: Juan Carlos Jauregui
Publisher: Springer
ISBN: 3030133176
Category : Technology & Engineering
Languages : en
Pages : 324

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Book Description
This book compiles recent research in the field of nonlinear dynamics, vibrations and damping applied to engineering structures. It addresses the modeling of nonlinear vibrations in beams, frames and complex mechanical systems, as well as the modeling of damping systems and viscoelastic materials applied to structural dynamics. The book includes several chapters related to solution techniques and signal analysis techniques. Last but not least, it deals with the identification of nonlinear responses applied to condition monitoring systems.

Simulator Study of Stall/post-stall Characteristics of a Fighter Airplane with Relaxed Longitudinal Static Stability

Simulator Study of Stall/post-stall Characteristics of a Fighter Airplane with Relaxed Longitudinal Static Stability PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 236

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A Parametric Study of the Aerodynamic Characteristics of Nose-cylinder-flare Bodies at a Mach Number of 6.0

A Parametric Study of the Aerodynamic Characteristics of Nose-cylinder-flare Bodies at a Mach Number of 6.0 PDF Author: George C. Ashby
Publisher:
ISBN:
Category : Aerodynamics, Hypersonic
Languages : en
Pages : 82

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Studies of Airframe-propulsion-system Integration for Mach 6 Cruise Vehicles

Studies of Airframe-propulsion-system Integration for Mach 6 Cruise Vehicles PDF Author:
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Category : Aerodynamics, Hypersonic
Languages : en
Pages : 26

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Summary of Flight-test Results of the VZ-2 Tilt-wing Aircraft

Summary of Flight-test Results of the VZ-2 Tilt-wing Aircraft PDF Author: Robert J. Pegg
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 48

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