Results 31 to 40 of about 141,115 (295)
Comparison of Force Reconstruction Methods for a Lumped Mass Beam
Shock and Vibration, 1997 Two extensions of the force reconstruction method, the sum of weighted accelerations technique (SWAT), are presented in this article. SWAT requires the use of the structure’s elastic mode shapes for reconstruction of the applied force.
Vesta I. Bateman +2 more
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DETECTION OF DAMAGE LOCATION IN BEAMS USING DISCRETE WAVELET ANALYSIS [PDF]
The Egyptian International Journal of Engineering Sciences and Technology, 2018 Damage detection in structures using vibration analysis has been a subject ofintensive investigation for the last two decades. In this paper, a method for damagedetection using wavelet analysis is presented.
A Bakry, S Mourad, S Selmy
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Role of Sensors in Error Propagation with the Dynamic Constrained Observability Method
Sensors, 2021 The inverse problem of structural system identification is prone to ill-conditioning issues; thus, uniqueness and stability cannot be guaranteed. This issue tends to amplify the error propagation of both the epistemic and aleatory uncertainties, where ...
Tian Peng +3 more
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Journal of Low Frequency Noise, Vibration and Active Control, 2019 A high-speed reciprocating operating mechanism with fast running and frequent stopping produces a certain vibration due to inertia. The inherent vibration of this mechanism becomes a key factor affecting positioning accuracy and time.
Xuchu Jiang +4 more
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Model Updating Using Measurements from Sensors Installed in Arbitrary Positions and Directions
Applied Sciences, 2019 The present study proposes a method for model updating using measurements from sensors installed in arbitrary positions and directions. Modal identification provides mode shapes for physical quantities (acceleration strain, etc.) measured in specific ...
Keunhee Cho +2 more
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Shock and Vibration, 2015 The load distribution to each mode of a structure under seismic loading depends on the modal participation factors and mode shapes and thus the exact estimation of modal participation factors and mode shapes is essential to analyze the seismic response ...
Jae-Seung Hwang +2 more
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Numerical and Experimental Analysis of the Effects of Crack on Vibration Characteristics of GFRP-stiffened Pipes [PDF]
Journal of Stress Analysis, 2019 In this paper, the vibration characteristics of GFRP-stiffened pipes, in intact and cracked conditions are investigated. The results have different applications, which the most important ones are optimized designs of such pipes and diagnosis of the ...
M.H. Velayatparvardeh, A. Shooshtari
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Free vibration of thin-walled composite box beams
, 2008 Free vibration of a thin-walled laminated composite beam is studied. A general analytical model applicable to the dynamic behavior of a thin-walled composite box section is developed.
Lee, Jaehong, Vo, Thuc
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Shape-preserving diffusion of a high-order mode [PDF]
Optics Letters, 2013 The close relation between the processes of paraxial diffraction and coherent diffusion is reflected in the similarity between their shape-preserving solutions, notably the Gaussian modes. Differences between these solutions enter only for high-order modes.
Yankelev, Dimity +3 more
openaire +3 more sources
, 2014 This paper proposes a novel similarity registration technique for volumetric shapes implicitly represented by their characteristic functions (CFs). Here, the calculation of rotation parameters is considered as a spherical cross-correlation problem and ...
Havelock, Tom +3 more
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