Results 11 to 20 of about 28,665,543 (293)
Experimental modal analysis [PDF]
, 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
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Experimental Modal Analysis of Viscoelastic Sandwich Structures [PDF]
Mechanics of Advanced Composite StructuresExperimental and numerical studies are implemented in this work to investigate the modal characteristics of three-layered viscoelastic sandwich beams and plates with a natural rubber core and distinct isotropic face layers. In this study, the material of
Meera-Saheb Koppanati +3 more
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Experimental Modal Analysis of an Automotive Powertrain [PDF]
Applied 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
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Correlating low energy impact damage with changes in modal parameters: diagnosis tools and FE validation [PDF]
, 2010 This paper presents a basic experimental technique and simplified FE based models for the detection, localization and quantification of impact damage in composite beams around the BVID level.
Niemann, Hanno +7 more
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Stochastic Subspace Method for Experimental Modal Analysis
MATEC 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
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Attenuation of sound radiation in concrete structure through the reduction of mechanical vibration
Revista 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
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Influence of Ice Accumulation on the Structural Dynamic Behaviour of Composite Rotors
Applied 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
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Reconstruction of damping properties for bended specimen
Nihon 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
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Operational Modal Analysis for Seismic Protection of Structures [PDF]
, 2008 This thesis focuses on output-only modal identification tests and on the opportunities they provide in the field of seismic protection of structures. The problem of a good measurement process, in order to obtain high quality data and reliable results ...
Rainieri, Carlo
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, 2022 8 S.This paper presents a semi-active vibration absorber concept and its implementa-tion on a manufacturing machine for a vibration reduction scheme.
Melz, T. +4 more
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