Results 21 to 30 of about 82,652 (246)
Data-Centric Engineering, 2020 Aircraft performance models play a key role in airline operations, especially in planning a fuel-efficient flight. In practice, manufacturers provide guidelines which are slightly modified throughout the aircraft life cycle via the tuning of a single ...
Florent Dewez +2 more
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Modal analysis of masonry structures [PDF]
Mathematics and Mechanics of Solids, 2018 This paper presents a new numerical tool for evaluating the vibration frequencies and mode shapes of masonry buildings in the presence of cracks. The algorithm has been implemented within the NOSA-ITACA code, which models masonry as a nonlinear elastic material with zero tensile strength.
Girardi M, Padovani C, Pellegrini D
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A Causal Analysis of Modal Syllogisms [PDF]
, 2020 It is well known that in his Prior Analysis, Aristotle presents the system of syllogisms. Although many commentators consider Aristotle’s system of modal syllogisms almost impossible to understand from a modern point of view or even inconsistent, many philosophers still tried to account for these claims by looking for a consistent semantics of it.
van Rooij, R., Xie, K.
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Operational modal analysis using symbolic regression for a nonlinear vibration system
Journal of Low Frequency Noise, Vibration and Active Control, 2021 The existence of nonlinearity is an inevitable frequent occurrence that should be considered to accurately identify the modal parameters of a vibration system using operational modal analysis.
Xuchu Jiang, Feng Jiang
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Structural Design Modification of a CubeSat Regarding Modal Compatibility for Launching by Vega C Launcher [PDF]
فصلنامه علوم و فناوری فضایی, 2023 In this research, the dynamic response of a U-12 CubeSat (20x20x30 cm) is investigated for three configurations during the launch conditions. Despite the existence of a successful design for this satellite, adding a mount to install on a standard adapter,
Mohammad Haji Jafari +2 more
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High-speed modal analysis of dynamic modal coupling in fiber laser oscillator
Frontiers in Physics, 2023 Up till now, the spatial and temporal dynamics of transverse mode instability (TMI) in fiber laser oscillator have increasingly attracted a worldwide attention.
Junyu Chai +33 more
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Capillary-Inserted Rotor Design for HRµMAS NMR-Based Metabolomics on Mass-Limited Neurospheres
Molecules, 2017 Nuclear magnetic resonance (NMR) spectroscopy is a powerful analytical technique and has been widely used in metabolomics. However, the intrinsic low sensitivity of NMR prevents its applications to systems with limited sample availabilities.
Nghia Tuan Duong +7 more
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Modal identification of cylindrical shell using circumference reduction method
Nihon Kikai Gakkai ronbunshu, 2015 For precision improvement of the noise prediction, the dynamic characteristics of structures need to be verified. This paper focuses on modal identification of the cylindrical shell structures.
Atsushi KITAHARA, Takuya YOSHIMURA
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Numerical Assessment of Building Vibration Techniques Using Laboratory Models [PDF]
Port Said Engineering Research Journal, 2022 Experimental Modal Analysis (EMA) is one of the most attractive engineering fields nowadays, which specifies in the studies of modal parameters of existing small buildings under forced vibrations.
moataz Elrayes +2 more
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Modal Appropriation for Use with In-Operation Modal Analysis
Shock and Vibration, 2015 We propose in this paper a numerical modal appropriation method for use with in-operation modal analysis (INOPMA). The key idea is to realize that the correlation sequence of the system output is the sum of decaying sinusoids with a certain phase shift ...
M. Abdelghani, D. J. Inman
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