Results 11 to 20 of about 436,148 (290)

Non-uniform Euler-Bernoulli beams’ natural frequencies [PDF]

open access: yesIngeniería e Investigación, 2011
This paper has studied the problem of natural frequencies for Euler-Bernoulli beams having non-uniform cross-section. The numerically-obtained solutions were compared to asymptotic solutions obtained by the Wentzel-Kramers-Brillouin (WKB) method.
Hugo Aya, Ricardo Cano, Petr Zhevandrov
doaj   +2 more sources

Natural Frequencies of a Tethered Satellite System [PDF]

open access: yesApplied Sciences
This study investigated the natural frequencies of a tethered satellite system to enhance stability and operational reliability. Tethered satellite systems provide many advantages for space missions but exhibit inherently complex dynamics due to the ...
Yihun Yoon, Woojae Jang, Jintai Chung
doaj   +2 more sources

NATURAL OSCILLATIONS FREQUENCIES OF HYDRAULIC ACCUMULATOR ELEMENTS SIMULATION [PDF]

open access: yesАвіаційно-космічна техніка та технологія, 2017
The paper presents simulation results of Heat Controlled Accumulator (HCA) structural parts natural frequencies. Two different mounting brackets were analyzed including impact of interior parts of accumulator. Find out that the minimal frequencies are in
Р. Ю. Турна   +3 more
doaj   +2 more sources

Why frequencies are natural [PDF]

open access: yesBehavioral and Brain Sciences, 2007
AbstractResearch in mathematical cognition has shown that rates, and other interpretations of x/y, are hard to learn and understand. On the other hand, there is extensive evidence that the brain is endowed with a specialized mechanism for representing and manipulating the numerosities of sets – that is, frequencies.
Butterworth, B
openaire   +4 more sources

Nested Sets and Natural Frequencies. [PDF]

open access: yes, 2019
Is the nested sets approach to improving accuracy on Bayesian word problems simply a way of prompting a natural frequencies solution, as its critics claim? Conversely, is it in fact, as its advocates claim, a more fundamental explanation of why the natural frequency approach itself works?
Dewitt, Stephen H.   +4 more
core   +7 more sources

Axisymmetric Natural Frequencies of Statically Loaded Annular Plates [PDF]

open access: yesShock and Vibration, 2003
We present a numerical procedure to solve the axisymmetric vibration problem of statically loaded annular plates. We use the von Kármán nonlinear plate model to account for large deformations and study the effect of static deflections on the natural ...
Eihab M. Abdel-Rahman   +2 more
doaj   +4 more sources

On a Fast Analytical Approximation of Natural Frequencies for Photovoltaic Modules [PDF]

open access: yes, 2020
In this paper, an eigenvalue problem is considered, i.e., the free vibration of photovoltaic (PV) modules. This structure was selected for its peculiar layer contrast, which forms an anti-sandwich.
Bergmann, Stefan   +3 more
core   +1 more source

Bridge Natural Frequencies, Numerical Solution versus Experiment

open access: yesApplied Sciences, 2022
The article is dedicated to a numerical and experimental analysis of the basic natural frequencies of a bridge structure. It presents the results obtained using the finite element method and the frequency response functions applied in two variants, using
Veronika Valašková, Jozef Melcer
doaj   +1 more source

Modal Analysis of Optimized Trapezoidal Stiffened Plates under Lateral Pressure and Uniaxial Compression

open access: yesApplied Mechanics, 2021
This paper deals with the modal analysis of optimized trapezoidal stiffened plates with simple supported conditions on the four edges of the base plate. The main objective of the finite element analysis is to investigate the natural frequencies and mode ...
Zoltán Virág, Sándor Szirbik
doaj   +1 more source

The natural frequencies of masonry beams [PDF]

open access: yesArchive of Applied Mechanics, 2021
The present paper aims at analytically evaluating the natural frequencies of cracked slender masonry elements. The problem is dealt with in the framework of linear perturbation, and the small oscillations of the structure are studied under loaded conditions, after the equilibrium for permanent loads has been achieved.
openaire   +3 more sources

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