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Improved Equivalent Linearization Implementations Using Nonlinear Stiffness Evaluation
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Book Synopsis Improved Equivalent Linearization Implementations Using Nonlinear Stiffness Evaluation by : Stephen A. Rizzi
Download or read book Improved Equivalent Linearization Implementations Using Nonlinear Stiffness Evaluation written by Stephen A. Rizzi and published by DIANE Publishing. This book was released on 2001 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781720578512 Total Pages :66 pages Book Rating :4.5/5 (785 download)
Book Synopsis Improved Equivalent Linearization Implementations Using Nonlinear Stiffness Evaluation by : National Aeronautics and Space Administration (NASA)
Download or read book Improved Equivalent Linearization Implementations Using Nonlinear Stiffness Evaluation written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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. The Direct Matrix Abstraction Program (DMAP) implementation performs these operations within NASTRAN. Both provide nearly identical results. Within each implementation, two error minimization approaches for the equivalent linearization procedure are available - force and strain energy error minimization. Sample results for a simply supported rectangular plate are included to illustrate the analysis procedure.Rizzi, Stephen A. and Muravyov, Alexander A.Langley Research CenterLINEARIZATION; RANDOM VIBRATION; APPLICATIONS PROGRAMS (COMPUTERS); STIFFNESS; STRUCTURAL ANALYSIS; FORTRAN; NASTRAN; RECTANGULAR PLATES; FINITE ELEMENT METHOD
Book Synopsis Improved Equivalent Linearization Implementations Using Nonlinear Stiffness Evaluation by : Stephen A. Rizzi
Download or read book Improved Equivalent Linearization Implementations Using Nonlinear Stiffness Evaluation written by Stephen A. Rizzi and published by DIANE Publishing. This book was released on 2001 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Equivalent Linearization Analysis of Geometrically Nonlinear Random Vibrations Using Commercial Finite Element Codes by : Stephen Anthony Rizzi
Download or read book Equivalent Linearization Analysis of Geometrically Nonlinear Random Vibrations Using Commercial Finite Element Codes written by Stephen Anthony Rizzi and published by DIANE Publishing. This book was released on 2002 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Book Synopsis The Bio-inspired X-Structure/Mechanism Approach for Exploring Nonlinear Benefits in Engineering by : Xingjian Jing
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Book Synopsis Proceedings of the FISITA 2012 World Automotive Congress by : SAE-China
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