نتایج جستجو برای: fem analysis

تعداد نتایج: 2829728  

Journal: :Computer Vision and Image Understanding 1998
Leonid V. Tsap Dmitry B. Goldgof Sudeep Sarkar Wen-Chen Huang

In this paper we propose a new general framework for the application of the nonlinear finite element method (FEM) to nonrigid motion analysis. We construct the models by integrating image data and prior knowledge, using well-established techniques from computer vision, structural mechanics, and computer-aided design (CAD). These techniques guide the process of optimization of mesh models. Linea...

2011
SANGEETA YADAV RAJESH SHRIVASTAVA

Numerical analysis of Partial Differential Equations (PDE's) of the solid mechanics using Finite Element Method (FEM) is very popular. One issue which is haunting the finite element solution is the computer time. Finite Element Analysis (FEA) using fine mesh and large number of nodes consumes lot of solution time. To overcome this difficulty, a hybrid Neuro-FEM is proposed. FEM solutions consid...

2006
Jeffrey T. Fong James J. Filliben Roland deWit Richard J. Fields Barry Bernstein Pedro V. Marcal

In this paper, we first review the impact of the powerful finite element method (FEM) in structural engineering, and then address the shortcomings of FEM as a tool for riskbased decision making and incomplete-data-based failure analysis. To illustrate the main shortcoming of FEM, i.e., the computational results are point estimates based on “deterministic” models with equations containing mean v...

Journal: :Transactions of the Japan Society of Mechanical Engineers Series B 1997

2015
Pierre Garambois Sebastien Besset Louis Jézéquel

This paper presents a methodology for the multi-objective (MO) shape optimization of plate structure under stress criteria, based on a mixed Finite Element Model (FEM) enhanced with a sub-structuring method. The optimization is performed with a classical Genetic Algorithm (GA) method based on Pareto-optimal solutions and considers thickness distributions parameters and antagonist objectives amo...

Journal: :روش های عددی در مهندسی (استقلال) 0
ابراهیم اسماعیل زاده و عبدالرضا اوحدی همدانی e. esmailzadeh and a. r. ohadi

the useful and efficient method of finite element (fem) has a drawback for dynamic analysis of complex structures, especially in the medium and high frequency range. to overcome this fundamental difficulty, application of statistical energy analysis (sea) and power flow technique has been suggested. as the sea is based on the average response of structure and statistical properties of its reson...

2015
Hong Wang Kun Zhang Haifeng Qin Lin Yang Liyu Zhang Yanyan Cao Xie. Maohua

rs4340 polymorphism at intron 16 of the angiotensin-converting enzyme (CD143) gene was reported to repress cough reflex by reducing bradykinin and substance P levels, thus increasing the likelihood to develop pneumonia. There have been different reports regarding the correlation of CD143 rs4340 genotypes with pneumonia risk, which prompted us to perform a meta-analysis to determine the elusive ...

2014
Yan Lin Shuo Cheng Zhutian Xie Dongfeng Zhang

BACKGROUND The association between polymorphisms rs6265 and rs2030324 in brain-derived neurotrophic factor (BDNF) and Alzheimer's disease (AD) has been widely reported, but the results remain controversial. METHODS A comprehensive search of Pubmed, Web of Science, China National Knowledge Infrastructure (CNKI), Wanfang Med Online and China Biology Medical literature database (CBM) was perform...

2014
Mosbeh R. Kaloop Mohamed A. Sayed Dookie Kim Eunsung Kim

This study presents a steel container crane movement analysis and assessment based on structural health monitoring (SHM). The accelerometers are used to monitor the dynamic crane behavior and a 3-D finite element model (FEM) was designed to express the static displacement of the crane under the different load cases. The multi-input single-output nonlinear autoregressive neural network with exte...

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