Results 21 to 30 of about 12,398 (258)

Vibration Response of Manual Wheelchairs According to Loads, Propulsion Methods, Speeds, and Ground Floor Types

open access: yesVibration, 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

Operational modal analysis of road-rail bridge

open access: yesMATEC 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

Operational modal analysis using order-based analysis in a two-stage planetary gear with mechanical power recirculation

open access: yesComptes 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
doaj   +1 more source

An application of operational modal analysis in modal filtering

open access: yesJournal 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
openaire   +1 more source

Modal Analysis Using Operating Modal Identification Method

open access: yesChinese 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
openaire   +4 more sources

Transmissibility-Based Operational Modal Analysis: Enhanced Stabilisation Diagrams

open access: yesShock 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
doaj   +1 more source

Cluster Analysis for Automated Operational Modal Analysis: A Review

open access: yesMATEC 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
doaj   +1 more source

Operational Modal Analysis-Based Control of Cutting Modes in Turning

open access: yesЖурнал інженерних наук
Turning, 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
doaj   +1 more source

Transmissibilty-Based Operational Modal Analysis for Flight Flutter Testing Using Exogenous Inputs

open access: yesShock and Vibration, 2012
During the recent years several new tools have been introduced by the Vrije Universiteit Brussel in the field of Operational Modal Analysis (OMA) such as the transmissibility based approach and the the frequency-domain OMAX concept.
Christof Devriendt   +3 more
doaj   +1 more source

Application of operational modal analysis to investigate transformer vibration patterns

open access: yesIET Generation, Transmission & Distribution, 2022
This paper develops an operational modal analysis application framework for vibration measurement‐based condition monitoring of transformer winding structure.
Jakob Pallot   +3 more
doaj   +1 more source

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