Results 21 to 30 of about 266,625 (301)

An SDP Characteristic Information Fusion-Based CNN Vibration Fault Diagnosis Method

open access: yesShock and Vibration, 2019
This study proposes a symmetrized dot pattern (SDP) characteristic information fusion-based convolutional neural network (CNN) fault diagnosis method to resolve issues of high complexity, nonlinearity, and instability in original rotor vibration signals.
Xiaoxun Zhu   +3 more
doaj   +1 more source

A robust subspace based approach to feedforward control of broadband disturbances on a six-degrees-of-freedom vibration isolation set-up [PDF]

open access: yes, 2005
The contribution of this paper is twofold. First, the paper introduces a novel hybrid vibration isolation approach which uses a combination of passive and active vibration control techniques to provide additional design freedom.
Dijk, J. van   +3 more
core   +2 more sources

Gear Fault Feature Extraction Based on Fuzzy Function and Improved Hu Invariant Moments

open access: yesIEEE Access, 2020
To intelligently identify gear fault types on the basis of gear vibration signals, due to the non-linear and non-stationary characteristics of gear vibration signals, a fuzzy function is used to represent the gear vibration signals in different states as
Chun Lv, Peilin Zhang, Dinghai Wu
doaj   +1 more source

VIBRATION ASSESSMENT OF TRACTOR OPERATOR BASED ON VIBRATION SIGNALS

open access: yesINMATEH Agricultural Engineering, 2023
Operator fatigue during work with agricultural machinery is a significant factor contributing to fatal accidents in Greece. Workers operating agricultural machinery, especially those working with tractors and off-road machines, constitute one of the most hazard-prone groups due to mechanical vibrations transmitted from the ground to the operators ...
Christos I. DIMITRIADIS   +4 more
openaire   +1 more source

Assessing material densities by vibration analysis and independent component analysis [PDF]

open access: yes, 2013
The aim of this study was to investigate vibration analysis and independent component analysis (ICA) to assess the density of multiple materials making up a single structure.
Bishop, Nick   +5 more
core   +1 more source

Sensorless action-reaction-based residual vibration suppression for multi-degree-of-freedom flexible systems [PDF]

open access: yes, 2010
This paper demonstrates the feasibility of controlling motion and vibration of a class of flexible systems with inaccessible or unknown outputs through measurements taken from their actuators which are used as single platforms for measurements, whereas ...
Khalil, Islam Shoukry Mohammed   +1 more
core   +1 more source

Proprioceptive changes impair balance control in individuals with chronic obstructive pulmonary disease [PDF]

open access: yes, 2013
Copyright @ 2013 Janssens et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source
Brumagne, S   +8 more
core   +2 more sources

High voltage circuit breaker fault diagnosis based on optimized TQWT and D–S evidence theory [PDF]

open access: yesAIP Advances
Vibration signals serve as an important parameter for diagnosing the mechanical fault diagnosis in high-voltage circuit breakers (HVCBs). Influenced by the complicated mechanical structures, transmission paths of mechanical vibrations, and signal ...
Wei Dong   +5 more
doaj   +1 more source

A High-Frequency Measurement Method of Downhole Vibration Signal Based on Compressed Sensing Technology and Its Application in Drilling Tool Failure Analysis

open access: yesIEEE Access, 2023
The high-frequency information of downhole vibration can record more specific details about the dynamic response of bottom hole assembly (BHA), which is conducive to analyzing downhole abnormal vibration and diagnosing drilling tool failure.
Fangxing Lyu, Yifan Wang, Yu Mei, Fei Li
doaj   +1 more source

Design and Preliminary Testing of Demand-Responsive Transverse Rumble Strips [PDF]

open access: yes, 2019
Transverse rumble strips are common practice to alert drivers by engaging their auditory and tactile senses in addition to visual senses by traffic signals.
Hossen, Md Shakhawat   +5 more
core   +2 more sources

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