scholarly journals Research of vibroacoustic signals in diagnostics of technical condition of engines of beet harvesters combines

2020 ◽  
Vol 1679 ◽  
pp. 042032
Author(s):  
I L Rogovskii ◽  
O S Zapadlovskij ◽  
S A Voinash ◽  
K Y Maksimovich ◽  
V A Sokolova ◽  
...  
2021 ◽  
Vol 326 ◽  
pp. 00001
Author(s):  
I Gorlov ◽  
S Ivanov ◽  
V Knyazkina ◽  
D Iakupov

This article presents the results of multiple-conditions wear-resistance tests for the antifriction bearings that are used in a milling tool. The test was performed on a one-fifth milling tool model. The tests were divided into three stages. The first testing stage included tests of a model with a new undamaged bearing. The second stage included tests of a model with a bearing that is worn out by approximately 50%. The third stage included tests of a model with a completely worn out antifriction bearing. Along with vibroacoustic tests, we measured the temperatures of the tested triboelement. In this article, we provide amplitude-frequency values of vibroacoustic signals recorded during the tests of a model with an undamaged antifriction bearing, a bearing with 50% worn-out extent, and 100% worn-out bearing. Appropriate resistance levels of complex machine elements cannot be achieved without systems of triboelements condition control. We suggest attaching temperature and vibroacoustic sensors to the critical elements of a peat winning machine that provide data for integral analysis of triboelemets condition and prevent failures when damage is recorded. Integral analysis of the technical condition of the main triboelements will allow performing the highly precise prognosis of the remaining life of a peat-winning machine, thus preventing failures in peat mining seasons.


2018 ◽  
Vol 121 ◽  
pp. 31-40
Author(s):  
Rafał Burdzik ◽  
Paweł Słowiński ◽  
Łukasz Konieczny

Passing rail vehicles generate vibrations and noise. In most studies, these phenomena are analyzed in terms of impact on people, the environment and railway infrastructure. However, using the vibroacoustic methodology, generated vibration and noise signals can be treated as information carriers. The vast majority of publications in the field of vibroacoustics analyze the usability of signals to determine the technical condition of machines and systems. For many years Professor Rafał Burdzik has been conducting research in the area of vibration and noise propagation analysis in means of transport. As a result of this work, a new research hypothesis was developed as the ability to identify a vehicle or trainset based on recorded images of vibroacoustic signals. The article presents the results of preliminary tests, during which rail vibrations were recorded in three orthogonal axes and acoustic pressure signals in the axis perpendicular to the railway route.


2020 ◽  
pp. 43-50
Author(s):  
A.S. Komshin ◽  
K.G. Potapov ◽  
V.I. Pronyakin ◽  
A.B. Syritskii

The paper presents an alternative approach to metrological support and assessment of the technical condition of rolling bearings in operation. The analysis of existing approaches, including methods of vibration diagnostics, envelope analysis, wavelet analysis, etc. Considers the possibility of applying a phase-chronometric method for support on the basis of neurodiagnostics bearing life cycle on the basis of the unified format of measurement information. The possibility of diagnosing a rolling bearing when analyzing measurement information from the shaft and separator was evaluated.


2019 ◽  
Vol 03 (03) ◽  
pp. 16-19
Author(s):  
E.K. Mukhutdinova ◽  
◽  
K.G. Abdul'minev ◽  
A.I. Kolyshkina ◽  
V.R. Tukaev ◽  
...  

Author(s):  
Oleg V. Aralov ◽  
◽  
Gleb E. Dolbin ◽  
Vyacheslav V. Kuzmin ◽  
Victor A. Kuzmichev ◽  
...  

2020 ◽  
Vol 91 (8) ◽  
pp. 500-504
Author(s):  
L. A. Daryan ◽  
E. P. Grabchak ◽  
R. M. Obraztsov ◽  
P. V. Golubev ◽  
N. L. Agraponova ◽  
...  

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