Identification of internal damage in ballastless tracks based on Gaussian curvature mode shapes
نویسندگان
چکیده
منابع مشابه
Research in Sensibility of Locating Damage Methods Based on Mode Shape to Damage Intensity
Structural health monitoring and damage detection is one of the most important subjects for mechanic and aerospace engineers. Structural fault can cause uncompensated problems for both human and environment. There are several methods for solving this problem, but the most useful methods are those which focuse on structural change in the vibrational properties. This paper presents a feasibility ...
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In this paper, a computationally simple approach for damage localization and quantification in beam-like structures is proposed. This method is based on using modal flexibility curvature (MFC) and particle swarm optimization (PSO) algorithm. Analytical studies in the literature have shown that changes in the modal flexibility curvature can be considered as a sensitive and suitable criterion for...
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Vibration-based methods of non-destructive damage detection utilizing curvature or strain energy mode shapes have been applied in a variety of applications. Attractive features of these methods include high sensitivity to damage and instant determination of the damage location. However, the quality of damage detection achieved in practice depends upon determining a proper sampling interval for ...
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1 Department of Engineering Mechanics, College of Water-Conservancy and Civil Engineering, Shandong Agricultural University, Taian 271000, China 2 Department of Engineering Mechanics, Hohai University, Nanjing 210098, China 3 Institute of Fluid Flow Machinery, Polish Academy of Sciences, 80-952 Gdańsk, Poland 4 Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom...
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In this paper, the capabilities of displacement curvature derived from static response data for finding the location and severity of damage in Euler-Bernoulli beams are assessed. Static response of a beam is obtained using the finite element modeling. In order to reduce the number of measured nodal displacements, the beam deflection is fitted through a polynomial function using a limited number...
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ژورنال
عنوان ژورنال: Journal of Vibroengineering
سال: 2016
ISSN: 1392-8716
DOI: 10.21595/jve.2016.17712