Modal identification of cylindrical shell using circumference reduction method
Nihon Kikai Gakkai ronbunshu, 2015 For precision improvement of the noise prediction, the dynamic characteristics of structures need to be verified. This paper focuses on modal identification of the cylindrical shell structures.
Atsushi KITAHARA, Takuya YOSHIMURA
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Mathematics, 2023 The dynamic response transfer rate function (TRF) is increasingly used in the field of structural modal parameter identification because it does not depend on the white noise assumption of the excitation.
Yanxin Xu +4 more
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Improving the performances of the autoregressive method in modal identification of output-only systems using Hilbert vibration decomposition method [PDF]
مهندسی عمران شریف, 2021 In this paper, an enhanced method for extraction of modal parameters (frequencies and damping ratios) of a structure from stationary or non-stationary measurement dynamic responses recorded by a sensor is presented. Surely, one of the simplest methods in
A. Nikkhoo +2 more
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Multimodal electromechanical model of piezoelectric transformers by Hamilton's principle [PDF]
, 2009 This work deals with a general energetic approach to establish an accurate electromechanical model of a piezoelectric transformer (PT). Hamilton’s principle is used to obtain the equations of motion for free vibrations. The modal characteristics (mass,
Nadal, Clément, Pigache, François
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Full-Field Mode Shape Identification Based on Subpixel Edge Detection and Tracking
Applied Sciences, 2023 Most research on computer vision (CV)-based vibration measurement is limited to the determination of discrete or coarse mode shapes of the structure. The continuous edge of the structure in images has rich optical features, and thus, by identifying and ...
Xuan Kong +4 more
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Effective filtering of modal curvatures for damage identification in beams [PDF]
, 2017 In this work, we investigate the effectiveness of a damage identification technique recently proposed in [1] and assess how it is affected by the number and position of the sensors used.
CIAMBELLA, JACOPO +2 more
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OMA analysis of a launcher under operational conditions with time-varying properties [PDF]
, 2018 The objective of the paper is the investigation of the capability of Operational Modal Analysis approaches to deal with time-varying system in the low-frequency domain.
Coppotelli, Giuliano +5 more
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Modal Identification Techniques for Concrete Dams: A Comprehensive Review and Application
SciThroughout history, the implementation of structural health monitoring systems has played a crucial role in evaluating the responses of dams to environmental and human-induced threats. By continuously monitoring structural integrity and analyzing dynamic
Hasan Mostafaei
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Effect of Temperature on the Modal Variability in Short-Span Concrete Bridges
Applied Sciences, 2022 The dynamic characteristics of bridges are known to be affected by damages as well as by environmental factors such as temperature. Therefore, the changes in the dynamic characteristics caused by damages and environmental factors should be considered ...
Keunhee Cho, Jeong-Rae Cho
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Correlating low energy impact damage with changes in modal parameters: diagnosis tools and FE validation [PDF]
, 2011 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.
Abrate S. +16 more
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