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46401
STRUCTURAL DAMAGE IDENTIFICATION BASED ON EXPANDED MODE SHAPES USING EXTREME LEARNING MACHINE...
Published 2018-02-01“…To detect damage in structures, one method, among different ones, is considered the most important i.e. the vibration-based methods. Because the modal parameters of structures like frequency and mode shape are so sensitive to structural properties like stiffness, it can therefore be used for detecting damage in structures.This paper presents a novel approach for structural damage detection and estimation using expanded mode shapes and extreme learning machine (ELM). …”
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46402
COMPARING BLAST LOAD BEHAVIORS OF REHABILITATED CONCRETE STRUCTURES USING VISCOUS DAMPER AND BASE ISOLA...
Published 2019-11-01“…Viscous dampers conform to the first mode of vibration of the structure and base isolators are designed according to seismic codes. …”
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46403
PASSIVE CONTROL USING OPTIMUM TUNED MASS DAMPER AND ITS EFFECTIVENESS IN A NONLINEAR STRUCTURE...
Published 2016-08-01“…So, when the structure is excited, the secondary mass vibrates in resonance with the structural motion, with 90 degrees of phase shift, and the TMD damping dissipates the input energy; consequently, a significant reduction in the response of the structure is achieved. …”
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46404
DEVELOPMENT OF CDF, CFM AND CFCM METHODS FOR DAMAGE DETECTION IN THE MIDDLE OF BRIDGE DECKS...
Published 2017-02-01“…Since damage alters the dynamic characteristics of a structure,namely, its Eigen properties (natural frequencies and modes of vibration), several techniques based on experimental modal analysis have been developed in recent years. …”
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46405
VULNERABILITY EVALUATION OF BURIED STEEL PIPELINES UNDER SEISMIC WAVE PROPAGATION...
Published 2019-02-01“…The seismic damage probability of pipeline increases with increasing natural frequency of vibration of the pipe-soil system. …”
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46406
DAMAGE IDENTIFICATION IN CYLINDRICAL SHELLS WITH FUNCTIONALLY GRADED MATERIALS RESTING ON ELASTIC FOUN...
Published 2020-11-01“…The main objective of this paper is to investigate the free vibration of cylindrical shell structures with functionally graded materials, FGM, on the elastic foundation in undamaged and damaged conditions. …”
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46407
DAMAGE DETECTION OF STRUCTURES USING WAVELET PACKET ANALYSIS AND DIMENSIONALITY REDUCTION...
Published 2019-05-01“…To separate noise from the actual vibration, signal is decomposed and then reconstructed. …”
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46408
A HYBRID METHOD FOR ESTIMATING THE INELASTIC RESPONSE SPECTRUM DUE TO DETERMINATION OF TARGET DISPLACEMEN...
Published 2016-02-01“…A response spectrum is a simple plot of the peak or steady-state response (displacement, velocity or acceleration) of a series of SDOF systems with various natural frequencies that are forced into motion by the same base vibration. This concept fairly estimates the characteristics of ground motion and maximum amounts of displacement, velocity and acceleration due to an earthquake. …”
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46409
SEISMIC PERFORMANCE ASSESSMENT OF ISOLATED STEEL MOMENT FRAMES WITH LOSS APPROACH...
Published 2019-02-01“…Seismic isolation has proven to be an effective method to reduce the seismic vibration and mitigate seismic losses and damage costs. …”
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46410
EVALUATION OF DETERMINANT PARAMETERS FOR THICKENING THE ENGINEERED FILLS LAYERS...
Published 2016-08-01“…Four types of roller, steel wheel, pneumatic tyre, sheepsfoot and vibrator were modeled on the cross section of the road. …”
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46411
Multiphase Production. Representation of Thermodynamic Properties of Methanol by Different Equations of State Production polyphasique. Représentation des propriétés thermodynamique...
Published 2006-11-01“…Cubie-Chain-Of-Rotators et Chain-Of-Rotators : Des résultats médiocres, mais prévisibles, ayant été obtenus, nous nous sommes alors tournés vers des équations d'état plus complexes, introduisant un terme supplémentaire tenant compte de la polarité de l'alcool induite par la présence du groupement hydroxyle, telles que : - l'équation d'état Cubic-Chain-Of-Rotators de Guo et col. (1985) qui tient compte des mouvements de rotation et de vibration des molécules polyatomiques non sphériques et qui introduit le moment dipolaire du méthanol. - l'équation d'état de Chao et Masuoka (1984), Chain-Of- Rotators , basée sur la théorie des perturbations. …”
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46412
AN ADAPTIVE PUSHOVER ANALYSIS CONSIDERING TORSIONAL EFFECTS...
Published 2017-02-01“…Since, in these methods, the lateral force distribution is assumed to be constant and is calculated based on the fundamental vibration mode of the elastic structure, they can provide accurate seismic demand estimates only for low and medium-rise buildings, where the contribution of higher modes in seismic responses is negligible. …”
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46413
ONLINE HEALTH MONITORING OF DETERIORATING NONLINEAR HYSTERETIC STRUCTURES USING UNSCENTED KALMAN FILT...
Published 2020-11-01“…In other words, these methods provide comprehensive information on the condition of the structure only by using the vibration data recorded by embedded sensors as well as the preset health monitoring algorithms. …”
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46414
Spaces, Times, Architectures. the Elements of the Constructive Phenomenon
Published 2020-10-01“…They meet and once united cannot disentangle themselves or stretch independently, but rather contribute as one to shaping the theatre of our lives, constantly making the whole of our daily lives vibrate. This is architecture. NOTES 1 Bloch, M. (1949), Apologie pour l’histoire ou Métier d’historien, Librairie Armand Colin, Parigi, in Bucci, F. (2020), “Giudicare o comprendere? …”
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46415
FACTORS EFFECTING THE KINEMATIC BENDING MOMENT IN THE PILES GROUP...
Published 2016-11-01“…In this case, the large curvatures imposed to the piles by the vibrating soil in turn generate bending moments; these moments will develop even in the absence of a substructure and are referred to as ``kinematic'' moments, to be distinguished from moments generated by structural loading at the pile head (``inertial'' moments). …”
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