Results 1 to 10 of about 15,432,475 (262)

A discrete model for geometrically nonlinear free and forced vibrations of stepped and continuously segmented Euler-Bernoulli AFG beams (SAFGB) carrying point masses

open access: yesDiagnostyka, 2022
A discrete model is applied to handle the geometrically nonlinear free and forced vibrations of beams consisting of several different segments whose mechanical characteristics vary in the length direction and contain multiple point masses located at ...
Anass Moukhliss   +3 more
doaj   +1 more source

Kernel Function Definition Completion for Time–Domain State–Space Representations of Radiation Forces: Application to the Hankel Singular Value Decomposition

open access: yesJournal of Marine Science and Engineering, 2021
This paper focuses on the formulation of state–space representations of radiation forces for marine structures using Hankel Singular Value Decomposition (HSVD), a method used to obtain a state–space realization from a Hankel matrix, with the classical ...
Romain Lecuyer-Le Bris   +3 more
doaj   +1 more source

Higher-order gradient elasticity models applied to geometrically nonlinear discrete systems [PDF]

open access: yesTheoretical and Applied Mechanics, 2015
The buckling and post-buckling behavior of a nonlinear discrete repetitive system, the discrete elastica, is studied herein. The nonlinearity essentially comes from the geometrical effect, whereas the constitutive law of each component is ...
Challamel Noël   +2 more
doaj   +1 more source

Some features of the development and construction of finite-difference models of rod structures of radio-electronic means

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2022
Objective. The aim of the study is to build finite-difference models that can be used to test the bending vibrations of a rod under various fastening conditions, solving the problem in the frequency or time domain. Method.
E. A. Danilova   +2 more
doaj   +1 more source

A FE-Based Macro-Element for the Assessment of Masonry Structures: Linear Static, Vibration, and Non-Linear Cyclic Analyses

open access: yesApplied Sciences, 2022
A Finite Element (FE) based macro–element is described for the mechanical response of masonry structures within different ranges of analysis. The macro–element is composed of discrete rigid quadrilateral FE plates whose adjoining interfaces are connected
Luis C. M. da Silva, Gabriele Milani
doaj   +1 more source

Validation of the continuum orthotropic model of tensegrity beam-like and plate-like structures

open access: yesArchives of Mechanics, 2023
In this paper, an attempt was made to develop the continuum orthotropic model of tensegrity structures. A basic four-module tensegrity grid built from modified Quadruplex modules was proposed. A procedure called the energy equivalency method was adopted.
P. Obara, J. Tomasik
doaj   +1 more source

Effects of SO2 Pollution on Household Insurance Purchasing in China: A Cross-Sectional Study

open access: yesFrontiers in Public Health, 2021
There have been considerable concerns regarding the effects of air pollution on health and economy over the past decades across the world. As insurance coverage has been closely related to household welfare, we aim to investigate the influence of air ...
Ren Wang   +4 more
doaj   +1 more source

Modelling of contact interaction of structures with the base under dynamic loading

open access: yesИнженерно-строительный журнал, 2019
Constructively nonlinear problems with unilateral constraints are frequent in the calculation of various structures. At the same time, certain difficulties cause problems with the contact friction, as well as with the dynamic action of the load.
Anatoliy Lukashevich
doaj   +1 more source

Implementing Discrete Model of Photovoltaic System on the Embedded Platform for Real-Time Simulation

open access: yesEnergies, 2020
This paper presents the development of a discrete model of a photovoltaic (PV) system consisting of a PV panel, Maximum Power Point Tracking (MPPT), a dual-axis solar tracker, and a buck converter.
Aryuanto Soetedjo   +1 more
doaj   +1 more source

Non‐linear analysis of suspension bridges with flexible and rigid cables

open access: yesJournal of Civil Engineering and Management, 2010
One of the main problems related to the design of suspension bridges is stabilisation of their initial form. The tendency of suspension bridges to deform is generally determined by the kinematical displacements of the suspension cable caused by ...
Algirdas Juozapaitis   +4 more
doaj   +1 more source

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