Results 21 to 30 of about 2,183,804 (282)

Frequency of Vibration Signals Generated in Metal Lapping Process. Model of Generation of Vibration Signals.

open access: yesJournal of the Japan Society for Precision Engineering, 1999
This paper describes the generation mechanism of sound caused by mechanical actions of abrasives under lapping process. It has been shown that the surface roughness of the work can be monitored in process by detecting the power level of the vibration signals, in the frequency range of 1-3kHz.
OSADA, Tasuku   +2 more
openaire   +3 more sources

Fault identification of high voltage circuit breaker trip mechanism based on PSR and SVM

open access: yesIET Generation, Transmission & Distribution, 2023
The trip mechanism is a weakness in circuit breakers. Traditional fault identification based on the coil current is difficult to report early mechanical defects such as coil‐plunger jam.
Jiangjun Ruan   +5 more
doaj   +1 more source

Condition Monitoring of Gear Systems using Vibration Analysis [PDF]

open access: yes
It is often impractical to measure vibrations directly at /or close to their sources when condition monitoring gearbox systems. It is common to measure the vibration distant from the source due to limited access to the component which is to be monitored.
Al-Arbi, Salem
core   +3 more sources

Vibration signal acquisition and computer simulation detection of mechanical equipment failure

open access: yesNonlinear Engineering, 2022
The author in order to solve the problem of optimizing the accuracy of mechanical equipment failure detection proposes a vibration signal collection and computer simulation detection for mechanical equipment failure. Using wavelet domain Wiener filtering-
Wang Yonggang   +3 more
doaj   +1 more source

On a Stochastic Regularization Technique for Ill-Conditioned Linear Systems

open access: yesOpen Engineering, 2019
Knowledge about the input–output relations of a system can be very important in many practical situations in engineering. Linear systems theory comes from applied mathematics as an efficient and simple modeling technique for input–output systems ...
Moura Henrique Gomes   +3 more
doaj   +1 more source

Online Analysis of Nonlinear Vibration Characteristics of Milling Chatter

open access: yesJournal of Harbin University of Science and Technology, 2018
In order to analyze the nonlinear dynamic behavior of the milling chatter,firstly to analyze the varying depths of cut during milling stationary vibration signal the vibration signal and bred flutter vibration signal nonlinear characteristics based on ...
WU Shi   +4 more
doaj   +1 more source

A two-step vibration-sound signal fusion method for weak fault feature detection in rolling bearing systems

open access: yesAdvances in Mechanical Engineering, 2021
The vibration and sound signals get widely applications in fault diagnosis of rolling bearing systems, but the detection accuracy is unstable at different measuring positions.
Guanchen Wu   +4 more
doaj   +1 more source

Diagnosis of Combination Faults in a Planetary Gearbox using a Modulation Signal Bispectrum based Sideband Estimator [PDF]

open access: yes, 2015
This paper presents a novel method for diagnosing combination faults in planetary gearboxes. Vibration signals measured on the gearbox housing exhibit complicated characteristics because of multiple modulations of concurrent excitation sources, signal ...
Gu, Fengshou   +12 more
core   +4 more sources

Detection of Vibration Signal by Plane Scanning Utilizing Wavefront Sensors

open access: yesPhotonics
Laser remote sensing of seismic waves is extensively utilized in earthquake monitoring and resource exploitation. This article leverages wavefront sensors’ high resolution and array detection capabilities to effectively conduct planar scanning of target ...
Yun Pan   +5 more
doaj   +1 more source

Dynamics Simulation Analysis of Tooth Root Crack Fault of Planetary Gearbox based on Torsional Vibration Signal

open access: yesJixie chuandong, 2021
The vibration-based methods have been widely used in the tooth root crack fault diagnosis of planetary gearbox. Compared with traditional transverse vibration signal,torsional vibration signal is not affected by the modulation of time-varying ...
Wei Wei, Yunpeng Li, Yanshuai Yang
doaj  

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