Results 21 to 30 of about 139,154 (302)
Ambient vibration re-testing and operational modal analysis of the Humber Bridge [PDF]
, 2010 An ambient vibration survey of the Humber Bridge was carried out in July 2008 by a combined team from the UK, Portugal and Hong Kong. The exercise had several purposes that included the evaluation of the current technology for instrumentation and system ...
Abdel-Ghaffar +43 more
core +1 more source
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
doaj +1 more source
Modal Appropriation for Use with In-Operation Modal Analysis [PDF]
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 and therefore it may be considered as an impulse response.
M. Abdelghani, D. J. Inman
openaire +2 more sources
OMA analysis of a launcher under operational conditions with time-varying properties [PDF]
, 2018 The objective of the paper is the investigation of the capability of Operational Modal Analysis approaches to deal with time-varying system in the low-frequency domain.
Coppotelli, Giuliano +5 more
core +1 more source
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 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
doaj +1 more source
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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Calibration of the dynamic behaviour of incomplete structures in archeological sites: The case of Villa Diomede portico in Pompeii [PDF]
, 2017 This paper reports the research activities carried out on Villa Diomede in Pompeii, built during the "Pre-Roman period" (i.e. the 3rd century BC) and discovered between 1771 and 1774 during the archaeological excavations.
Lorenzoni, F. +4 more
core +1 more source
Operational modal analysis of a spar-type floating platform using frequency domain decomposition method [PDF]
, 2016 System identification of offshore floating platforms is usually performed by testing small-scale models in wave tanks, where controlled conditions, such as still water for free decay tests, regular and irregular wave loading can be represented.
Arena, Felice +5 more
core +3 more sources
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
doaj +1 more source