Results 21 to 30 of about 4,651,346 (275)
Modal identification of damaged frames
Structural Control and Health Monitoring, 2015 Summary The paper investigates the possibility of identifying localised damages for multi-span and multi-floor linear elastic frames using only natural frequencies measured in the undamaged and damaged configurations. Namely, frames of increasing complexity are studied by exploring one by one their significant substructures (i.e.
Diaferio, Mariella, SEPE, VINCENZO
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Journal of Marine Science and Engineering, 2023 As a new type of riser connecting offshore platforms and submarine pipelines, steel catenary risers (SCRs) are generally subject to waves and currents for a long time, thus it is significant to fully evaluate the SCR structure’s safety.
Zhongyan Liu +4 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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Applied Sciences, 2023 Wind turbine blades are readily damaged by the workplace environment and frequently experience flaws such as surface peeling and cracking. To address the problems of cumbersome operation, high cost, and harsh application conditions with traditional ...
Li Zou, Haowen Cheng, Qianhui Sun
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A Robust Deep Learning-Based Damage Identification Approach for SHM Considering Missing Data
Applied Sciences, 2023 Data-driven methods have shown promising results in structural health monitoring (SHM) applications. However, most of these approaches rely on the ideal dataset assumption and do not account for missing data, which can significantly impact their real ...
Fan Deng +3 more
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Damage identification using inverse methods [PDF]
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2006 This paper gives an overview of the use of inverse methods in damage detection and location, using measured vibration data. Inverse problems require the use of a model and the identification of uncertain parameters of this model. Damage is often local in nature and although the effect of the loss of stiffness may require only a small number of ...
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Sensors, 2023 In this paper, defect detection and identification in aluminium joints is investigated based on guided wave monitoring. Guided wave testing is first performed on the selected damage feature from experiments, namely, the scattering coefficient, to prove ...
Wen Wu +5 more
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Competition between mesoplasticity and damage under HCF – Elasticity/damage shakedown concept [PDF]
, 2007 Lien vers la version éditeur: http://www.sciencedirect.com/science/article/pii/S0142112306003240The aim of this paper is to present new modelling dedicated to multiaxial high cycle fatigue (HCF), and applied to polycrystalline metals.
DRAGON, André +2 more
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Zhejiang dianli, 2022 In view of the difficulty in signal identification in vibration acoustic detection of post porcelain insulators， A BP （backpropagation） neural network identification method based on variational mode decomposition （VMD） is proposed to identify the damage ...
LUO Hongjian +3 more
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Damage identification of bridge structure model based on empirical mode decomposition algorithm and Autoregressive Integrated Moving Average procedure [PDF]
Archives of Civil Engineering, 2022 Time series models have been used to extract damage features in the measured structural response. In order to better extract the sensitive features in the signal and detect structural damage, this paper proposes a damage identification method that ...
Weijia Lu +4 more
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