Results 261 to 270 of about 936,745 (311)

Damage Detection in Flexible Structures

Journal of Sound and Vibration, 1993
Abstract A method is developed for the detection of the existence and location of structural damage. Structural damage is considered to be at the macroscopic level. The detection is carried out in two parts. In the first part, the eigensolution of the structure is identified using a modal parameter identification technique and the system response ...
Baruh, H., Ratan, S.
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Damage detection with auxiliary subsystems [PDF]

, 2008
The small sensitivity to local variations of mechanical characteristics turns out to be the major limit of indirect identification techniques based on frequency response measurements. To overcome this limit, the use of sensitivity enhancement techniques has recently proposed: the monitored structure is coupled to an auxiliary system, the constitutive ...
VESTRONI, Fabrizio, VIDOLI, Stefano
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Damage Detection

Science's STKE, 2003
Protein complexes called tight junctions hold adjacent cells of an epithelial monolayer tightly together, creating a physical barrier between apical and basolateral membranes. Vermeer et al. show that in human airway epithelia, tight junctions keep the growth factor heregulin, and its receptor, erbB2, apically and ...
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Damage detection using generic elements: Part II. Damage detection

Computers & Structures, 2003
This paper proposes the use of generic elements in damage detection, based on the use of an updated baseline finite element model, modal sensitivities and changes in the measured modal quantities arising from structural damage. A companion paper presented the fundamental theory of model updating and generic element or substructure parameterisation. The
Titurus, Branislav, Friswell, Michael I., Starek, Ladislav   +2 more
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Damage detection in a suspension bridge model using the interpolation damage detection method

2012
Herein the feasibility of a damage detection and localization method (the Interpolation Damage Detection Method) is investigated for damage detection of long span suspension bridges. Based on the response induced by wind loading, a 'signature' of the structure in the intact state is obtained in terms of the power spectral densities of responses along ...
DOMANESCHI, MARCO, LIMONGELLI, MARIA GIUSEPPINA, MARTINELLI, LUCA   +2 more
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Deep Network For Road Damage Detection

2020 IEEE International Conference on Big Data (Big Data), 2020
Heavy use by cars and trucks leads to huge damages, so road damage detection is an essential task to road maintenance. Traditional road damage detection has to require a huge amount of manual effort, it is therefore of great interest to propose vision-based systems that can automatically detect the road damages.
Yuming Liu, Xiaoyong Zhang, Bingzhen Zhang, Zhenwu Chen   +3 more
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Structural Damage Detection by Genetic Algorithms

AIAA Journal, 2002
A two-stage procedure utilizing incomplete measurements to assess the location and extent of structural damage is presented. In the first stage, candidate damaged elements are identified using the residual force method. Based on a priori knowledge from the first stage, the damage extent is determined from candidate elements using a proposed ...
K. Moslem, R. Nafaspour
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Road Damage Detection Using RetinaNet

2018 IEEE International Conference on Big Data (Big Data), 2018
Road damage detection is of importance to road maintenance, which typically requires huge amount of manual efforts. In this work, we leverage deep learning models to analyze the road images to detect road damages efficiently. Specifically, we train and test different deep learning methods to identify efficient models with high accuracy.
Laha Ale, Ning Zhang 0007, Longzhuang Li
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Structural Dynamic Identification and Damage Detection

2022
Dynamic methods are a powerful tool for studying the behaviour of existing structures and their health conditions. The practical application, however, often raises subtle questions related to the accuracy and completeness of experimental data, the complexity of the mechanical modelling and, ultimately, the inverse nature of the problems that leads to ...
Vestroni F., Morassi A.
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A new approach to the detection of DNA damage

Leukemia Research, 1989
A method is described which permits the detection of damage produced in unlabeled DNA by daunorubicin, nitrogen mustard, or radiation. After exposure to one of the agents the cells are embedded in an agarose block and lysed to release the DNA. The agarose block is then transferred to a well in an agarose gel and electrophoresis performed. DNA damage is
M, Kawamura, H D, Preisler
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