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Damage Detection in Double Layer Grids with Modal Strain Energy Method and Dempster-Shafer Theory [PDF]
Civil Engineering Infrastructures Journal, 2021 Change in modal strain energy is one of the indicators used to detect damage in structures. However, in structures with high degrees of freedom, such as double-layer grids, this method requires a relatively large number of mode shapes which in practice ...
Hamed Teimouri +3 more
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Analysis of the Mode Shapes of Kaplan Runners
Applied Sciences, 2022 To prevent lifetime shortening and premature failure in turbine runners, it is of paramount importance to analyse and understand its dynamic response and determine the factors that affect it.
Greco Moraga +4 more
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Non-reciprocal piezoelectric metamaterials with tunable mode shapes
Frontiers in Mechanical Engineering, 2022 The mode shapes of piezoelectric metamaterials are tuned by manipulating spatially the electrical boundary conditions of the piezo-elements, in a desired and controlled manner, in order to tailor the wave propagation characteristics through these ...
Amr Baz
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Damage Detection of Bridge by Rayleigh-Ritz Method [PDF]
Journal of Rehabilitation in Civil Engineering, 2020 As a result of environmental and accidental actions, damage occurs in structures. The early detection of any defect can be achieved by regular inspection and condition assessment.
Mohammad Hasan Daneshvar +3 more
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U.Porto Journal of Engineering, 2022 Cracks weaken structures. When the crack size increases in service, the structure becomes weaker than its earlier condition. Lastly, the structure may break down due to a small crack.
vikas khalkar +7 more
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Crack detection of a beam-like bridge using 3D mode shapes
Vietnam Journal of Mechanics, 2014 In this paper, mode shapes of a 3D cracked beam with a rectangular cross section are analyzed for crack detection. The influence of coupling mechanism between horizontal and vertical bending vibrations due to the 3D crack model on the mode shapes is ...
Nguyen Viet Khoa
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Damage Detection of Structures Using Modal Strain Energy with Guyan Reduction Method [PDF]
Journal of Rehabilitation in Civil Engineering, 2020 The subject of structural health monitoring and damage identification of structures at the earliest possible stage has been a noteworthy topic for researchers in the last years.
Shahin Lale Arefi +2 more
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Damage Detection Using Modal Rotational Mode Shapes Obtained with a Uniform Rate CSLDV Measurement
Applied Sciences, 2019 With the rapid development of a continuously scanning laser Doppler vibrometer (CSLDV) technique, the full-field mode shapes of structures with high accuracy can be obtained.
Zi Huang, Chaoping Zang
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Journal of Marine Science and Engineering, 2023 In this paper, an analytical dynamic model is proposed for vibration suppression of a multi-span continuous bridge by tuned mass dampers (TMDs). Firstly, the partial differential equations (PDEs) that govern the motion of the multi-span continuous bridge
Jin Wei, Wei Liu, Peixin Gao, Yujie Ding
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Modal Analysis of a Trapezoidal Violin Built after the Description of Félix Savart
Archives of Acoustics, 2014 One-dimensional experimental modal analysis of an unvarnished trapezoidal violin built after the descriptions of F. Savart and an anonymous trapezoidal violin on display in the Music Instrument Museum of Brussels is described.
Tim DUERINCK +2 more
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