Results 21 to 30 of about 141,115 (295)
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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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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Determination of Axial Force in Tie Rods of Historical Buildings Using the Model-Updating Technique
Applied Sciences, 2020 Tie rods are structural elements that transfer axial tensile loads and are typically used on walls, vaults, arches, and buttresses in historical buildings.
Ivan Duvnjak +3 more
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T-shaped mode coupler for two-mode mode division multiplexing
IEICE Electronics Express, 2011 We propose a novel type of mode coupler consisting of two identical rectangular few-mode waveguides with different orientations. Numerical simulation indicates that mode extinction ratio exceeding 20dB can be achieved by well-aligned waveguides.
Hirokazu Kubota +2 more
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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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Buildings, 2021 Historic buildings have a high architectural value and their maintenance, repair and rehabilitation require a special approach. This approach is mainly based on the buildings’ performance under non-destructive tests such as operational modal analysis ...
Suzana Ereiz +3 more
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Mode conversion via wavefront shaping
Optics Express, 2018 In recent years, wavefront shaping has been utilized to control and correct distorted light for enhancing a bright spot, generation of a Bessel beam or darkening a complete area at the output of a scattering system. All these outcomes can be thought of as enhancing a particular mode of the output field. In this letter, we study the relation between the
Anat, Daniel +3 more
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Vietnam Journal of Mechanics, 2019 This paper presents crack identification in multiple cracked beams made of functionally graded material (FGM) by using stationary wavelet transform (SWT) of mode shapes and taking into account influence of Gaussian noise.
Tran Van Lien, Ngo Trong Duc
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Nihon Kikai Gakkai ronbunshu, 2022 This paper addresses a method of controlling the nodal positions of mode shapes as desired. The method is developed to calculate reflection and transmission coefficients at discontinuities and ends required for shaping mode shapes. The method is based on
Yuichi MATSUMURA +4 more
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