Results 21 to 30 of about 24,074,970 (295)
Operational modal analysis of road-rail bridge
MATEC Web of Conferences, 2015 In this paper, we describe an Operational Modal Analysis (OMA) of the Bridge over the Tocantins River, a composite road-rail bridge located in the city of Marabá, state of Pará, northern Brazil. The bridge is part of the Carajás Railway, which is used by
Cardoso M. +3 more
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Vibration, 2023 Manual wheelchair (MWC) users are daily exposed to vibration during propulsion. The impact of such exposure on the MWC user’s health has yet to be proven.
Ophélie Larivière +3 more
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Comptes Rendus. Mécanique, 2022 Modal analysis techniques are considered as the most used of techniques allowing the characterization of the dynamic behaviour in systems such as planetary gear transmission. During operational conditions, the modal behaviour can be altered.
Mbarek, Ayoub +5 more
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An application of operational modal analysis in modal filtering
Journal of Physics: Conference Series, 2011 Modal filtration in the field of damage detection has many advantages, including: its autonomous operation (without the interaction of qualified staff), low computational cost and low sensitivity to changes in external conditions. However, the main drawback of this group of damage detection methods is its limited applicability to operational data.
Piotr Kurowski +2 more
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Transmissibility-Based Operational Modal Analysis: Enhanced Stabilisation Diagrams
Shock and Vibration, 2012 Recently it has been shown that also transmissibilities can be used to identify the modal parameters. This approach has several advantages: because of the deterministic character of the transmissibility functions, the estimated parameters are more ...
Gert De Sitter +2 more
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Operational Modal Analysis of the Cablestayed Footbridge
Civil and Environmental Engineering, 2017 Modern architecture leads to design subtle bridge structures that are more sensitive to increased dynamic loading than the massive ones. This phenomenon can be especially observed on lightweight steel structures such as suspended footbridges. As a result,
Kortiš Ján +4 more
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Cluster Analysis for Automated Operational Modal Analysis: A Review
MATEC Web of Conferences, 2019 Recent developments in the field of modal-based damage detection and vibration-based monitoring have led to a renewed interest in automated procedures for the operational modal analysis (OMA). The development of automated operational modal analysis (OMA)
Hasan M. Danial A. +4 more
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Mass and Temperature Changes in Operational Modal Analysis
, 2021 A challenge in identifying the dynamic properties of large structures through operational modal analysis (OMA), whereby the response of a structure is measured under ambient excitation, is the changes in added mass and temperature which may occur during data collection.
Zachariah Wynne +5 more
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Modal Analysis Using Operating Modal Identification Method
Chinese Journal of Aeronautics, 2004 AbstractSometimes it is very difficult for some large scale operating structures to measure the input forces. Modal parameters must be estimated on response only. A poly-reference time domain operating modal identification complex exponential method is presented since cross-correlation functions have the same form as impulse response functions.
ZHENG, Min +3 more
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Operational Modal Analysis-Based Control of Cutting Modes in Turning
Журнал інженерних наукTurning, like any cutting process, is performed in a closed machining system and is always accompanied by chatter. Increasing cutting speed to improve productivity was constrained by increased vibration amplitude, resulting in negative outcomes.
Yuri Petrakov +2 more
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