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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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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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Fundamental Modes of Swimming Correspond to Fundamental Modes of Shape: Engineering I‐, U‐, and S‐Shaped Swimmers [PDF]
Advanced Intelligent Systems, 2021 Hydrogels have received increased attention due to their biocompatible material properties, adjustable porosity, ease of functionalization, tuneable shape, and Young's moduli. Initial work has recognized the potential that conferring out‐of‐equilibrium properties to these on the microscale holds and envisions a broad range of biomedical applications ...
Priyanka Sharan +5 more
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Exact Mode Shapes of T-shaped and Overhang-shaped Microcantilevers [PDF]
Communications in Physics, 2020 Resonance frequencies and mode shapes of microcantilevers are of important interest in micro-mechanical systems for enhancing the functionality and applicable range of the cantilevers in vibration transducing, energy harvesting, and highly sensitive measurement.
Le Tri Dat, Vu Lan, Nguyen Duy Vy
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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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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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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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How Modes Shape Casimir Physics
International Journal of Modern Physics A, 2022 Modes have steadily influenced the understanding of physical systems through time. At least since the prediction of the Casimir effect, they also play a very important role in Casimir physics and in the understanding of the different phenomena typical of this research field.
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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 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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