نتایج جستجو برای: vibration signal

تعداد نتایج: 465017  

Journal: :Journal of Applied Mathematics 2017

2012

In the article methods of vibroacoustic diagnostics of high-power toothed gears are described. It is shown below, that properly registered and processed acoustic signal or vibration signal may serve as an explicitly interpreted source of diagnostic symptoms. The presented analysis were based on vibration signals registered during the work of the gear of a rolling stand working in Katowice Steel...

2005
Tarun Kumar Gangopadhyay Sivaji Chakravorti Kesab Bhattacharya Saibal Chatterjee

Interferometric optical fibre sensors have proved to be many orders of magnitude more sensitive than their electrical counterparts, but they suffer from limitations in signal demodulation caused by phase ambiguity and complex fringe counting when the output phase difference exceeds one fringe period and for multiple fringes. This paper presents a novel signal decoding technique based on the wav...

2001
Michael Feldman

The possibility of fault detection in strwtuxs from changes in their non-line= parameters is one of the actual question of dynamic system monitoring. Thii study concentrates on signal processing techniques for non-linear system investigtion, based on Hidbert transform and ewelope and instante.. neous frequency, which enables us to estinmte system instantaneous dynamic parameters (natural freque...

2013
Hui Li

A novel approach to fault detection and diagnosis of gearbox based on Ensemble Empirical Mode Decomposition (EEMD) and Teager Kaiser Energy Operator (TKEO) technique is presented. The time-domain vibration signal of the gearbox with gear crack fault is measured. EEMD can adaptively decompose the vibration signal into a series of zero mean Amplitude Modulation-Frequency Modulation (AM-FM) Intrin...

Journal: :Journal of Applied Mathematics and Physics 2020

Journal: :International Journal of Computer and Electrical Engineering 2012

ژورنال: تحقیقات موتور 2019
, ,

Transverse vibration of the serpentine belt is effective at noise and durability of it. Therefore, understanding of this phenomenon and studying effective parameters can be used in the process of reducing belt noise and increasing life time. In this paper, transverse vibration of serpentine belt is measured experimentally and analyzed. In the implementation test steps, the displacement of the b...

2012
Brendan F. Kennedy Maciej Wojtkowski Maciej Szkulmowski Kelsey M. Kennedy Karol Karnowski David D. Sampson

Optical coherence elastography employs optical coherence tomography (OCT) to measure the displacement of tissues under load and, thus, maps the resulting strain into an image, known as an elastogram. We present a new improved method to measure vibration amplitude in dynamic optical coherence elastography. The tissue vibration amplitude caused by sinusoidal loading is measured from the spread of...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید