Results 11 to 20 of about 57,721 (257)

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 of an Automotive Powertrain [PDF]

open access: yesApplied Mechanics and Materials, 2010
The work is devoted to study the dynamic properties of a powertrain, performing an experimental modal analysis (EMA). The aim is to determinate structural modes and frequency response function (FRF) using an experimental approach. Two types of excitation mechanism are applied and compared for the EMA: a modal exciter (electromagnetic shaker system) and
DELPRETE, CRISTIANA   +2 more
openaire   +1 more source

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

Identification of modal parameters for complex structures by experimental modal analysis approach

open access: yesAdvances in Mechanical Engineering, 2016
In this research, we have proposed a methodology for experimental identification of modal parameters based on measurement of the frequency responses of structures with complex geometries and performed an overall investigation of structural behavior on a ...
Tamara Nestorović   +2 more
doaj   +1 more source

Parameter Identification of a Three-dimensional Flexible Ring-based Model of a Tire Using Experimental Modal Analysis

open access: yesInternational Journal of Automotive Engineering, 2019
A flexible ring-based model is simple, comprehensive, and accurate, and has been most frequently adopted in tire models with a low degree-of-freedom.
Masami Matsubara, Shozo Kawamura
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

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

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