Results 41 to 50 of about 2,493 (156)

Point spectra and normal modes of the Rayleigh loaded string with damping [PDF]

open access: yesTheoretical and Applied Mechanics
We describe the point spectra of some dissipative version of the celebrated “Rayleigh loaded string”, an elastic string of finite length carrying a number n ≥ 1 of equally spaced, equal point masses, which is a basic model that exhibits a band ...
Fassò Francesco   +2 more
doaj   +1 more source

Mathematical Model of Deformation of an Orthotropic Shell Under Blast Loading

open access: yesStructural Mechanics of Engineering Constructions and Buildings
This paper proposes a mathematical model of the deformation of a thin-walled shell structure under dynamic loading, specifically, blast loading. To account for the damping of the resulting vibrations, the author’s previously proposed model was modified ...
Alexey A. Semenov
doaj   +1 more source

Data-Driven Identification of Rayleigh-Damped Second-Order Systems

open access: yes, 2022
In this paper, we present a data-driven approach to identify second-order systems, having internal Rayleigh damping. This means that the damping matrix is given as a linear combination of the mass and stiffness matrices. These systems typically appear when performing various engineering studies, e.g., vibrational and structural analysis.
Igor Pontes Duff   +2 more
openaire   +3 more sources

Optimal energy decay rate in a damped Rayleigh beam

open access: yesDiscrete and Continuous Dynamical Systems, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Taking into Account Material Damping in Seismic Analysis of Structures

open access: yesTehnički Glasnik, 2020
The purpose of this paper is to justify that it is necessary to take into account physical and mechanical properties of soil and different materials of erected structures for damping vibrations in dynamic loads, and to suggest tools for modelling the ...
Mariia S. Barabash   +2 more
doaj  

Calculating dispersion relations for waveguide immersed in perfect fluid

open access: yesMathematical Modelling and Analysis, 2018
Conventional finite element method (FEM) is capable of obtaining wave solutions, but large discretized structures at high frequency require high computational resources, the computational domain can be reduced by combining FEM with analytical assumption ...
Audrius Nečiūnas   +2 more
doaj   +1 more source

Stability analysis of an extended Lorenz model for magnetoconvection in a rotating weakly electrically conducting fluid layer

open access: yesResults in Physics
We investigate a five-dimensional Lorenz model describing two-dimensional Rayleigh–Bénard magnetoconvection in a weakly electrically conducting fluid layer subject to uniform rotation and a vertical magnetic field.
Anoop Suresh, M.S. Jagadeesh Kumar
doaj   +1 more source

RESEARCH ON THE DIRECTIVITY RESPONSE OF THE SPHERICAL PENDULUM SEISMOGRAPH

open access: yesJixie qiangdu, 2022
To solve the problem that the Houfeng Seismograph’s directional function’s historical record was generally questioned. The analysis concludes that the spherical pendulum seismic measurement scheme may be a feasible restoration scheme with Rayleigh wave ...
LIU Zhao   +4 more
doaj  

Simulink library project for modeling and simulation of dynamic phenomena in rotating power transmission systems [PDF]

open access: yesTransport Problems, 2014
This paper presents the concept and an example of usage of Simulink blocks library with which dynamic simulation of complex systems with rotating shafts, rigid rotors, bearings and couplings, general rotating power transmission systems of any ...
Tomasz MATYJA
doaj  

Estimate of Small Stiffness and Damping Ratio in Residual Soil Using Spectral Analysis of Surface Wave Method

open access: yesMATEC Web of Conferences, 2016
Research in the important parameters for modeling the dynamic behavior of soils has led to rapid development of the small strain stiffness and damping ratio for use in the seismic method. It is because, the experimental determination of the damping ratio
Bawadi Nor Faizah   +3 more
doaj   +1 more source

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