نتایج جستجو برای: structural dynamics

تعداد نتایج: 812435  

In this paper, a generalized particle system (GPS) method, a general method to describe multiple strong form representation based particle methods is described. Gradient, divergence, and Laplacian operators used in various strong form based particle method such as moving particle semi-implicit (MPS) method, smooth particle hydrodynamics (SPH), and peridynamics, can be described by the GPS metho...

2005
Paolo Ghisletta Ulman Lindenberger

Cross-sectional and longitudinal analyses of age-heterogeneous samples have revealed correlational links between and within intellectual, sensory, and sensorimotor domains. Due to basic limitations of cross-sectional designs and a reluctance to disentangle antecedent–consequent relations in longitudinal designs, the functional significance and dynamics of these links have remained unclear. Adva...

2013
Anand P. Deshmukh James T. Allison

Wind energy is proving to be a promising energy source to complement conventional energy systems in meeting global energy demands, and is currently one of the fastest growing renewable energy sources. Modern wind turbines are large, flexible structures operating in uncertain environments. Power capture and economic value increase with turbine size, leading to steadily increased turbine size ove...

2013
Julia Perl Jérôme Kunegis Matthias Thimm Steffen Staab Thomas Gottron

We investigate the structural patterns of the appearance and disappearance of links in dynamic knowledge networks. Human knowledge is nowadays increasingly created and curated online, in a collaborative and highly dynamic fashion. The knowledge thus created is interlinked in nature, and an important open task is to understand its temporal evolution. In this paper, we study the underlying mechan...

2012
Hsi-Chi Hsiao

This study investigated the function of social supports and computer self-efficacy in predicting high school students’ perceived effect of computer use. The study was survey method to collect data. The questionnaires were distributed to the high school students in Taiwan. 620 questionnaires were distributed and 525 questionnaires were gathered back with 84.67% return rate. The results of struct...

2014
Marco Aurelio Rossi

--------------------------------------------------------Abstract------------------------------------------------------------Structural loads are critical for aircraft design, especially joining members of the system. Wings, they are joining with fuselage through a structural member called fairings, these fairings plays major role in aerodynamic and structural factors of the wing and fuselage sy...

2006
José M. Alonso Vicente Hernández R. López Germán Moltó

In this paper we describe the implementation of a service oriented environment that enables to couple a parallel application, which performs the 3D linear dynamic structural analysis of high-rise buildings, to a Grid Computing infrastructure. The Grid service, developed under Globus Toolkit 4, exposes the dynamic simulation as a service to the structural scientific community. It employs the GMa...

2010
Spyros G. Voutsinas

Structural dynamics of wind turbines aims at assessing the integrity and reliability of the complete construction against varying external loading over the targeted life time. Since wind induced excitation is the most important, structural dynamics is closely connected to aeroelasticity. Most of structural analysis is based on modelling while tests are reserved for prototype assessment. To this...

2000

Application Note 243-3 Η(ω) = Σ n r = 1 φ φ i j /m (n-) + (2 n) ω ω ξωω 2 2 2 2 2 Modal analysis is defined as the study of the dynamic characteristics of a mechanical structure. This application note emphasizes experimental modal techniques, specifically the method known as frequency response function testing. Other areas are treated in a general sense to introduce their elementary concepts an...

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