Results 11 to 20 of about 7,683,030 (332)
Shape descriptors for mode-shape recognition and model updating [PDF]
Journal of Physics: Conference Series, 2009 The most widely used method for comparing mode shapes from finite elements and experimental measurements is the Modal Assurance Criterion (MAC), which returns a single numerical value and carries no explicit information on shape features. New techniques, based on image processing (IP) and pattern recognition (PR) are described in this paper.
Wang, W, Mottershead, JE, Mares, C
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Inverse Problems in Science and Engineering, 2021 Achieving complete data of measured mode shapes is costly during the process of structural dynamic test. This results in a challenge for the damage detection. This paper concentrates on structural damage detection problem with incomplete mode shape data.
Haifeng Liu, Baisheng Wu, Zhengguang Li
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Damage severity for cracked simply supported beams
Fracture and Structural Integrity, 2021 This paper investigated the static and dynamic behaviors of isotropic cracked simply supported beam using finite element analysis (FEA), ANSYS software.
Ehab Samir Mohamed Mohamed Soliman
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Gaussian Process Regression Model for Damage Localization in Plates Based on Modal Data [PDF]
Journal of Rehabilitation in Civil Engineering, 2022 The applications of plate like structures in different fields of engineering are increasing. In this paper, a new damage detection method investigated based on Gaussian process regression model (GPR).
Seyed Sina Kourehli
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Evaluation of vibration mode shape using a mechanoluminescent sensor
Applied Physics Letters, 2021 This study proposes a method to measure vibration mode shape on beam structures by using the elastic mechanoluminescent (EML) material SrAl2O4: Eu2+. The EML phenomenon has attracted interest due to its potential for application to strain distribution ...
Bing Chen +5 more
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Sensors, 2020 Micromechanical Thermal Analysis utilizes microstring resonators to analyze a minimum amount of sample to obtain both the thermal and mechanical responses of the sample during a heating ramp.
Maximilian Karl +4 more
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Structural Control & Health Monitoring, 2021 Modal analysis has emerged as a globally accepted tool to formulate and optimize the behavioral functions of engineering structures, which assists in assessing structural failure and laying out a plan for their maintenance.
Ruoyu Yang +5 more
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Uncertainty Quantification of Mode Shape Variation Utilizing Multi-Level Multi-Response Gaussian Process [PDF]
Journal of Vibration and Acoustics, 2020 Mode shape information plays the essential role in deciding the spatial pattern of vibratory response of a structure. The uncertainty quantification of mode shape, i.e., predicting mode shape variation when the structure is subjected to uncertainty ...
K. Zhou, Jiong Tang
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Progressive failure analysis of helicopter rotor blade under aeroelastic loading
Aviation, 2020 Unlike metal structure, composite structures don’t give any clue till the fatal final collapse. The problem is more complicated when applied load on the structure is aeroelastic in nature. Under such loading, composite laminate experiences stresses.
Kamran Ahmad +3 more
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Beam shaping using Gaussian beam modes [PDF]
Journal of the Optical Society of America A, 2010 A beam shaping method is presented where a diffractive optical element (DOE) is designed by optimizing the complex mode coefficient weights of a set of Gaussian beam modes. This method is compared with the more standard unidirectional approach. Differential evolution is used for the optimization in both the unidirectional and Gaussian beam mode ...
Lavelle, John, O'Sullivan, Créidhe
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