Results 11 to 20 of about 62,418 (259)

Multi-Variant Modal Analysis Approach for Large Industrial Machine

open access: yesEnergies, 2022
Power generation technologies are essential for modern economies. Modal Analysis (MA) is advanced but well-established method for monitoring of structural integrity of critical assets, including power ones.
Kajetan Dziedziech   +3 more
doaj   +1 more source

Assessment of 2D Digital Image Correlation for Experimental Modal Analysis of Transient Response of Beams Using a Continuous Wavelet Transform Method

open access: yesApplied Sciences, 2023
The modal parameters of structures, and in particular their mode shapes, are generally determined based on the measurement of accelerometers or laser vibrometers. However, these sensors do not allow the performance of full-field measurements.
Xavier Régal   +3 more
doaj   +1 more source

Experimental modal analysis

open access: yes, 2006
This technical report concerns the basic theory and principles for experimental modal analysis. The sections within the report are: Output-only modal analysis software (section 1.1), general digital analysis (section 1.2), basics of structural dynamics and modal analysis (section 1.3) and system identification (section 1.4).
Ibsen, Lars Bo, Liingaard, Morten
openaire   +4 more sources

Attenuation of sound radiation in concrete structure through the reduction of mechanical vibration

open access: yesRevista IBRACON de Estruturas e Materiais, 2018
The efficiency of sound irradiance in structure has direct relation with its vibratory movement. Dynamic vibration absorbers (DVAs) are a low cost viable option for reducing vibrations in passive structures.
R. V. DE HOLANDA   +4 more
doaj   +2 more sources

Stochastic Subspace Method for Experimental Modal Analysis

open access: yesMATEC Web of Conferences, 2016
The formula of stochastic subspace identification method is deduced in details and the program is written out. The two methods are verified by a vibration test on a 5-floor rigid frame model.
Liu Dazhi   +5 more
doaj   +1 more source

Reconstruction of damping properties for bended specimen

open access: yesNihon Kikai Gakkai ronbunshu, 2021
A general machine or structure is manufactured by combining a plurality of members, and these members may be used as they are in a simple shape or may be used after being shaped. When performing the dynamic design of such machines or structures by Finite
Shozo KAWAMURA   +2 more
doaj   +1 more source

Influence of Ice Accumulation on the Structural Dynamic Behaviour of Composite Rotors

open access: yesApplied Sciences, 2020
The implementation of wind turbines as a source of sustainable, renewable energy is increasing. Although the prospects of renewable energy development are promising, ice accumulation on turbine blades still stands as a major operational issue.
Angelos Filippatos   +4 more
doaj   +1 more source

Comparison of Empty and Oil-Filled Transformer Tank Mode Shapes Using Experimental and FEM Modal Analysis

open access: yesEnergies
In this paper, the mode shapes of an empty and oil-filled transformer experimental model tank are obtained using 3D finite element method (FEM) modal analysis. For verification of the FEM analysis results, experimental modal analysis (EMA) is carried out
Karlo Petrović   +3 more
doaj   +1 more source

Dynamic Analysis of the Musical Triangles—Experimental and Numerical Approaches

open access: yesApplied Sciences, 2022
This paper addresses the experimental and numerical dynamic analysis of curved bars used as percussion musical instruments. These structures are known as triangles, being made of various metal materials.
Mariana Domnica Stanciu   +5 more
doaj   +1 more source

A review of experimental modal analysis methods and their applications in aerospace vehicles

open access: yesHangkong gongcheng jinzhan
Experimental modal analysis is a method of measuring the natural vibration characteristics of a structure through experiments. The analysis results are mainly used to modify the structural dynamic models and provide data support for structural dynamics ...
HUI Xinyu   +3 more
doaj   +1 more source

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