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Journal articles on the topic 'Vibroacoustic diagnostics'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Syrbakov, A. P., and M. A. Korchuganova. "Technical Diagnosis of Internal Combustion Engines in the Parameters of Vibration." Applied Mechanics and Materials 756 (April 2015): 53–58. http://dx.doi.org/10.4028/www.scientific.net/amm.756.53.

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Several ways of technical diagnostics have been researched. General aspects have been considered of the mechanism diagnostics by vibroacoustic signals. The assessment of the vibroacoustic engine diagnostics method is provided. On the basis of a laptop computer, a portable diagnostic complex has been elaborated for the pre-assessment of combustion engine mechanisms' condition using parameters of a vibroacoustic signal. For technical assessment of combustion engines a diagnostic scheme has been proposed for mechanical components by vibration parameters.

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Bielikov, A. S., I. M. Slashchov, V. M. Korotaiev, S. S. Barabanov, and V. V. Demchenko. "IMPROVING THE VIBROACOUSTIC METHOD FOR CONTROL OF DAMAGE TO GEOTECHNICAL STRUCTURES." Ukrainian Journal of Civil Engineering and Architecture, no. 1 (025) (February 21, 2025): 31–39. https://doi.org/10.30838/ujcea.2312.270225.31.1126.

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Problem statement. The vibroacoustic monitoring method requires further improvement, especially in establishing clear links between the measured diagnostic parameters and characteristic defects of the environment structure. It is necessary to integrate data and develop risk indicators of the geotechnical system stability loss for automatic recognition of defects, taking into account the use of the vibroacoustic method. Purpose of the study. Improvement of the vibroacoustic method for structures destruction control and search of the cracks localization in mine workings, underground and deep str

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3

Lomakin, Denis Olegovich, and Maksim Vladimirovich Kulev. "VIBROACOUSTIC DIAGNOSTICS OF BEARINGS." World of transport and technological machines 87, no. 4-2 (2024): 36–41. https://doi.org/10.33979/2073-7432-2024-4-2(87)-36-41.

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4

Kozochkin, M. P., and F. S. Sabirov. "Vibroacoustic diagnostics of spindles." Russian Engineering Research 29, no. 8 (2009): 827–30. http://dx.doi.org/10.3103/s1068798x09080176.

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5

Zinko, Roman, Oleh Polishchuk, and Ewa Kuliś. "Vehicle diagnostic system of the car engine." MATEC Web of Conferences 351 (2021): 01014. http://dx.doi.org/10.1051/matecconf/202135101014.

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Support of the established technical characteristics of engines is reached by its regular service and diagnostics in particular - existence of the diagnostic programs built in the onboard computer of the car which carry out constant control of the main parameters of the engine.Based on the algorithm of vibroacoustic diagnostics, a system of vibration and vibroacoustic diagnostics of the internal combustion engine (ICE) is proposed, which can be integrated into the intelligent environment of self - diagnostics of the car (Check - Engine). The algorithm takes into account the normalized paramete

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SZYMAŃSKI, Grzegorz, and Wojciech MISZTAL. "Analysis of measurement points sensitivity of vibration signals on the stand of jet engine." Combustion Engines 171, no. 4 (2017): 279–82. http://dx.doi.org/10.19206/ce-2017-448.

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The diagnostic testing of internal combustion engine can be made by using working processes and methods which take advantage of leftover processes. Working processes give information about general condition of internal combustion engine. Leftover processes give information about condition of particular subassemblies and kinematic couples; hence they are used as autonomous processes or as processes supporting other diagnostic methods. Methods based on analysis of vibrations and noise changes to determine technical condition of object are named as vibroacoustic diagnostics. In papers about vibro

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SZYMAŃSKI, Grzegorz, and Franciszek TOMASZEWSKI. "Experimental method for the selection of points of measurement diagnostic vibration signals on internal combustion engine." Combustion Engines 150, no. 3 (2012): 72–79. http://dx.doi.org/10.19206/ce-117035.

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The diagnostic testing of internal combustion engine can be made by using working processes and methods which take advantage of leftover processes. Working processes give information about general condition of internal combustion engine. Leftover processes give information about condition of particular subassemblies and kinematic couples; hence they are used as autonomous processes or as processes supporting other diagnostic methods. Methods based on analysis of vibrations and noise changes to determine technical condition of object are named as vibroacoustic diagnostics. In papers about vibro

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8

Borysiuk, Dmytro, Igor Tverdokhlib, Ihor Kupchuk, and Oleg Kovalchuk. "MATHEMATICAL MODEL OF VIBROACOUSTIC SIGNAL OBTAINED DURING VIBROACOUSTIC DIAGNOSTICS OF MACHINES." Vibrations in engineering and technology, no. 4(111) (December 2, 2023): 11–15. http://dx.doi.org/10.37128/2306-8744-2023-4-2.

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The modern stage of development and use of diagnostic tools is characterized by intensive computerization. Computer technology is used at all stages of designing diagnostic systems, but, of course, it plays the main role in the process of processing and analyzing diagnostic information. Vibrodiagnostics is based on measuring the characteristics of vibration processes (displacement, speed or acceleration) that are formed during the interaction of parts of a working machine or mechanism, and their analysis by various methods. The vibroacoustic signal has a complex structure that depends on the d

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Zyabirov, I. M., and V. I. Zyabirova. "Preventive diagnostics of grain combines." Traktory i sel hozmashiny 80, no. 1 (2013): 38–39. http://dx.doi.org/10.17816/0321-4443-65920.

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10

Beresnev, Alex, and Max Beresnev. "Vibroacoustic Method of IC Engine Diagnostics." SAE International Journal of Engines 7, no. 1 (2014): 1–5. http://dx.doi.org/10.4271/2014-01-0282.

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11

Sabirov, F. S., L. G. Vainer, and A. V. Rivkin. "Vibroacoustic diagnostics of bidirectional end milling." Russian Engineering Research 35, no. 6 (2015): 458–61. http://dx.doi.org/10.3103/s1068798x15060179.

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12

Gimadeev, M. R., and A. A. Li. "Analysis of automated surface roughness parameter support systems based on dynamic monitoring." Advanced Engineering Research 22, no. 2 (2022): 116–29. http://dx.doi.org/10.23947/2687-1653-2022-22-2-116-129.

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Introduction. Domestic and foreign works on the milling of complex-profile surfaces with a ball-end tool were analyzed. Methods of surface quality control and ways to provide amplitude parameters of roughness, based on research data and field experiments, were considered. Theoretical provisions on the determination of cutting forces and the results of vibroacoustic diagnostics were presented.Materials and Methods. The methods of correlation analysis, comparison and generalization of the results were applied. The data were calculated at different tool angles, taking into account the instantaneo

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13

Radkowski, S. "Vibro-acoustic diagnostics of low-energy stage of failures evolution." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 223, no. 5 (2009): 589–97. http://dx.doi.org/10.1243/09544100jaero413.

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The work concerns diagnosis of the origins and development of early stages of defects based on information found in vibroacoustic signal. At the beginning the necessity of selection of diagnostic parameters dependent upon the amount of dissipated energy and related defect development is proven. Emphasizing the fact that defect development does not always lead to a significant growth of the vibroacoustic signal's power, the author has shown importance of analysis and modelling of low-energy defects.

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Dooley, Kelly E., Michael Morimoto, Piotr Kaszuba, et al. "Evidence Generation for a Host-Response Biosignature of Respiratory Disease." Viruses 17, no. 7 (2025): 943. https://doi.org/10.3390/v17070943.

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Background: In just twenty years, three dangerous human coronaviruses—SARS-CoV, MERS-CoV, and SARS-CoV-2 have exposed critical gaps in early detection of emerging viral threats. Current diagnostics remain pathogen-focused, often missing the earliest phase of infection. A virus-agnostic, host-based diagnostic capable of detecting responses to viral intrusion is urgently needed. Methods: We hypothesized that the lungs act as biomechanical instruments, with infection altering tissue tension, wave propagation, and flow dynamics in ways detectable through subaudible vibroacoustic signals. In a matc

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Popovchenko, O., and M. Mysyk. "DIAGNOSTICS OF POWDER CHARGE DEGRADATION BY VIBROACOUSTIC SIGNALS OF GUNSHOTS." Випробування та сертифікація, no. 1(7) (April 9, 2025): 22–29. https://doi.org/10.37701/ts.07.2025.03.

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Since the degradation of a powder charge significantly affects the effectiveness of firing missions, can lead to the destruction of the gun and injury or death of personnel, there is a practical need for systematic monitoring of its condition, and known methods and diagnostic tools do not provide the ability to conduct operational control in combat conditions. No matter what method is used to control the condition of gunpowder charges, only a sample of a larger or smaller quantity is always inspected, so there is always a non-zero probability that a certain quantity of gunpowder with an excess

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Gorlov, I., S. Ivanov, V. Knyazkina, and D. Iakupov. "Device for integrated diagnostics of mining machines triboelements." E3S Web of Conferences 326 (2021): 00001. http://dx.doi.org/10.1051/e3sconf/202132600001.

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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. I

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Zamikhovskyi, L. M., O. L. Zamikhovska, and V. V. Pavlyk. "Methodology for monitoring the technical condition of GPU type GTK-25i in the process of operation." Scientific Bulletin of Ivano-Frankivsk National Technical University of Oil and Gas, no. 2(49) (December 30, 2020): 106–16. http://dx.doi.org/10.31471/1993-9965-2020-2(49)-106-116.

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In the early 1980s, 120 gas compressor units (GPU) type GTK-25i were installed on the Urengoy-Pomary-Uzhgorod transcontinental gas pipeline, and three of them are in operation at CS-39 “U-P-U” of the Bogorodchansk Linear Production Department of trunk gas pipelines. Today, about 80% of GPU type GTK-25i have worked out the established service life, or those close to it. Their further operation does not ensure reliable and efficient operation, and therefore numerous failures and accidents occur, leading to significant economic losses. Methods of parametric and vibroacoustic diagnostics of GPU ar

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18

Dziurdź, Jacek. "Modelling of the Toothed Gear Operations with the Application of the Analysis of the Gear Sliding Mesh Velocity Changes." Solid State Phenomena 180 (November 2011): 200–206. http://dx.doi.org/10.4028/www.scientific.net/ssp.180.200.

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Searching for effective diagnostic methods of basic elements of driving systems is still the actual problem. The most often the vibroacoustic diagnostics based on the analysis of vibrations and noises generated by the working system is applied. Driving systems of vehicles are rather complicated. They consist, among others, of various types of toothed gears. Within the vibroacoustic signals recorded during their operation not only harmonic components – being the effect of these gears operations - are present, but also components generated by other elements. Due to this, there is a necessity of

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19

Haller, Piotr, Antoni Jankowski, Andrzej Kaźmierczak, and Radosław Wróbel. "Wavelet Transform in Vibroacoustic Diagnostic of Machines." Journal of KONES 26, no. 1 (2019): 47–55. http://dx.doi.org/10.2478/kones-2019-0006.

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Abstract This article discusses the use of wavelet decomposition in the diagnostics of vibrometric signals of an engine. Apart from presenting the possibility of using wavelets in diagnostics, the authors take up the subject of the applicability range of processing for stationary signals, which until now has been reserved for non-stationary signals. A unified definition of signal stationarity has been proposed, which is not based on statistics. The authors presented methods of wavelet decomposition of a vibrometric signal of combustion engine vibrations, measured with the use of LDV (Laser Dop

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20

Konstantinova, M. V., B. V. Malozyomov, and S. KH Alikhadzhiyev. "Overview of existing methods of asynchronous motor diagnostics." Journal of Physics: Conference Series 2176, no. 1 (2022): 012069. http://dx.doi.org/10.1088/1742-6596/2176/1/012069.

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Abstract The paper provides a review, analysis and research of existing diagnostic methods such as a vibroacoustic method based on the analysis of damped oscillations arising from dynamic loads of the system in friction nodes, the thermal method based on the analysis of thermal fields created by the object under study and the acoustic emission method, which includes an assessment of acoustic emission occurring in metals and welded joints. The advantages and disadvantages are identified and the conditions and areas of use of these methods are described. The applicability of these methods to suc

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21

Nitu, N. A., V. Caunii, and C. Bujoreanu. "Concept development of an independent electronic system for vibroacoustic diagnostics of vehicles." IOP Conference Series: Materials Science and Engineering 1235, no. 1 (2022): 012037. http://dx.doi.org/10.1088/1757-899x/1235/1/012037.

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Abstract This paper proposes the concept of electronic noise and vibration diagnostic system for vehicles that aims to avoid wrong or unreasonable replacement of their components in the repair process. Our concept for a vibroacoustic diagnostic system consists of a set of sensors that receive noise and vibration, judiciously arranged and connected to a DAQ (Data Acquisition System). This allows the ECU (Electronic Control Unit) to accurately determine, by three-dimensional detection, the area in which vibroacoustic anomalies are manifesting (due to current or incipient defects). The data stora

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Krupiński, Robert, and Eugeniusz Kornatowski. "The Use of Generalized Gaussian Distribution in Vibroacoustic Detection of Power Transformer Core Damage." Energies 13, no. 10 (2020): 2525. http://dx.doi.org/10.3390/en13102525.

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Vibroacoustic diagnostics (VM—Vibroacoustic Method) is one of the methods for diagnosing the active part of power transformers. Measurement technologies have been refined over the past several years, but the methods of analyzing data obtained in VM diagnostics are still in development. In most cases, they are based on a simple frequency spectrum analysis, and the diagnostic conclusions are subjective and depend on the expert’s professional experience. The article presents an objective method for the detection of transformer unit core damage, based on the analysis of the statistical properties

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STELMASIAK, Zdzisław, and Mariusz RUDNICKI. "Detectability of gear damage in combustion engines through a vibroacoustic method." Combustion Engines 158, no. 3 (2014): 12–22. http://dx.doi.org/10.19206/ce-116933.

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The paper presents a new methodology in vibroacoustic diagnostics of internal combustion engines during a cold test on the production line. This method utilizes order analysis of harmonic components of vibroacoustic signals taken from a combustion engine driven with an electric motor to identify the source of noise and vibration amplitude. The presented analysis of the harmonic orders was used to diagnose the damage of the gear teeth.

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Shadmonxodjayev, Murodilla, and Damir Insapov. "Regulation of feeding part of complex of vibroacoustic diagnostics of rotary units of rolling stock." E3S Web of Conferences 401 (2023): 05007. http://dx.doi.org/10.1051/e3sconf/202340105007.

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The article deals with the study of parameters of power supply control systems for the position of non-disassembly vibroacoustic diagnostics of rotary units of rolling stock. It is assumed that the power sources transmit constant electricity to bring the traction motors of electric locomotives and electric trains into rotation with the required frequency at the position of non-disassembly diagnostics of bearings. Experiments were performed following the MatLab/Simulink software. Analytical methods are used to determine the parameters of traction motors of electric rolling stock according to th

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25

Lysenko, E. A., and V. A. Berns. "VIBROACOUSTIC DIAGNOSTICS OF OPEN-TYPE (UN-PRESSURIZED) SPACECRAFTS." Journal of Dynamics and Vibroacoustics 3, no. 1 (2016): 47–54. http://dx.doi.org/10.18287/2409-4579-2016-3-1-47-54.

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Wrobel, Radoslaw, and Andrzej Kazmierczak. "Wavelet Transform in Vibroacoustic Diagnostics of Combustion Engines." Engineering 11, no. 07 (2019): 395–406. http://dx.doi.org/10.4236/eng.2019.117028.

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Grigoriev, S. N., M. P. Kozochkin, M. A. Volosova, and A. A. Okunkova. "DIAGNOSTICS OF INTERELECTRODE GAP’S CONDITION USING VIBROACOUSTIC EMISSION." Kontrol'. Diagnostika, no. 304 (October 2023): 22–27. http://dx.doi.org/10.14489/td.2023.10.pp.022-027.

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This work is devoted to the study of the interelectrode gap’s condition during wire electrical discharge machining. The experiments were carried out on workpieces made of chromium-nickel anti-corrosion steel 12Kh18N10T and duralumin D16 with a brass tool CuZn35 with a diameter of 0.25 mm in deionized water. The developed diagnostic tool based on vibroacoustic emission recorded oscillations with a frequency of 4 … 8 kHz accompanying the processing.

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Otoka, A. G., D. V. Budnik, and A. M. Liakh. "Experience of operation of the UDP-2001SM railway wheelset bearing vibration diagnostics installation and the OMSD-02 mechanism diagnostics system." Dependability 22, no. 4 (2022): 8–15. http://dx.doi.org/10.21683/1729-2646-2022-22-4-8-15.

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The Aim of the paper is to compare the UDP-2001SM installation for vibration diagnostics of bearings of freight, refrigerator and passenger car wheels and the OMSD-02 mechanism diagnostics system that since recently has been used in the Belarusian Railway.Methods. By way of analysis of the UDP-2001SM vibration diagnostics installation and the OMSD-02 mechanism diagnostics system, the authors considered the list of identifiable defects, method for defining threshold values (reference levels) of vibroacoustic pulses and noises for the criteria of “faulty” and “good”, statistical data for rejecte

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Gruntovich, N. V., D. V. Kirdishchev, and D. N. Kirdishcheva. "Probabilistic and Statistical Methods for Identifying Defects in Diesel Fuel Equipment Using Vibroacoustic Spectra." Machinery and Equipment for Rural Area, no. 2 (February 28, 2024): 43–47. http://dx.doi.org/10.33267/2072-9642-2024-2-43-47.

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The article deals with the practical results of technical diagnostics of diesel fuel equipment using vibroacoustic characteristics. The authors used given diagnostic matrix, Bayesian methods and sequential analysis to calculate the effect of reducing the elasticity of the injector spring on the performance of the fuel injector and the connection of the diagnosis “increased injector spring tension” with the sign “high amplitude at a frequency of 115 Hz”.

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Klekot, Grzegorz, Zbigniew Dąbrowski, and Jacek Dziurdź. "50 Years of scientific thought on Machine Diagnostics in PolanD anD its influence on MaritiMe aPPlications." Polish Maritime Research 31, no. 4 (2024): 161–73. https://doi.org/10.2478/pomr-2024-0060.

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Abstract This article presents a condensed outline of how approaches to solving technical diagnostics tasks have changed over the last 50 years. It reviews different approaches to the modelling of wear and tear phenomena that are the subject of diagnosis, and draws attention to groundbreaking papers which are still of topical interest. Particular emphasis is placed on the development of vibroacoustic diagnostics methods, an area in which Polish scientists were among the world’s avant garde. It is also shown how methodologies have changed with the progress of digital signal analysis. The exampl

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Logunov, A. V., and A. L. Beresnev. "CAPABILITIES OF VIBROACOUSTIC EXAMINATION AND DIAGNOSTICS OF VEHICLE SUSPENSION." IZVESTIYA SFedU. ENGINEERING SCIENCES, no. 1 (June 1, 2021): 165–74. http://dx.doi.org/10.18522/2311-3103-2021-1-165-174.

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GREGA, Robert, and Piotr CZECH. "NON-INVASIVE VIBROACOUSTIC DIAGNOSTICS OF CAR INTERNAL COMBUSTION ENGINES." Scientific Journal of Silesian University of Technology. Series Transport 125 (December 1, 2024): 69–87. https://doi.org/10.20858/sjsutst.2024.125.5.

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Over the past ten years, the number of vehicles on the roads has almost doubled. The consequences of this state are negative effects, which include an increased number of road accidents and an increased level of harmful emissions into the atmosphere, along with other forms of environmental pollution. Road safety level is the sum of the safety levels of each element of the human-vehicle-environment system. In order to maintain the appropriate level of road safety, vehicles must be maintained in proper technical condition, and for this purpose, it is necessary to detect all types of damage at an

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Ilich Fedyukov, Vladimir, Tatiana Alexandrovna Makarieva, Ekaterina Yurevna Saldaeva, and Ekaterina Mikhailovna Tsvetkova. "Biophysical Bases for Vibroacoustic Diagnostics of Standing Sounding Wood." Drvna industrija 67, no. 3 (2016): 281–88. http://dx.doi.org/10.5552/drind.2016.1514.

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MERKISZ, Jerzy, and Marek WALIGÓRSKI. "The application of the deterministic chaos method in the assessment of the combustion process in diesel engines fitted in non-road vehicles." Combustion Engines 147, no. 4 (2011): 87–97. http://dx.doi.org/10.19206/ce-117081.

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The paper describes the problem of the combustion process diagnostics in diesel engines of HDV vehicles in the aspect of the environment protection and misfire detection as well as its use in the OBD/EOBD systems. Vibroacoustic processes were taken into consideration and the chosenparameters ofthe vibration signals obtainedfrom the specified locations in the engine were the diagnostic estimators of the process changes. The paper discusses the diagnosis of the course of the process from the point of view of the OBD system requirements, in order to check the possibility of using the deterministi

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Dobrolyubov, I. P. "Diagnostics of resource structural parameters of geared transmissions." Traktory i sel hozmashiny 81, no. 6 (2014): 18–23. http://dx.doi.org/10.17816/0321-4443-65578.

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Identification method for diagnostics of resource structural parameters of gearing of transmissions and reducers of agricultural machinery is suggested. The method is based on analysis of deformation of distribution density and correlation function of amplitudes of vibroacoustic impulses or impulses of shaft angular velocity on exceedance by mean value or by dispersion (following along with tooth changeover periods) of level corresponding to occurrence of defects and critical operating mode. Application of this method is investigated.

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Tikalov, Andrey Vladimirovich, and Leonid Vladimirovich Yefremov. "Vibroacoustic Study of Abrasive Wear of Multilayered Sliding Bearings." Key Engineering Materials 822 (September 2019): 662–68. http://dx.doi.org/10.4028/www.scientific.net/kem.822.662.

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The article substantiates consistent patterns of wear at the example of microcutting materials in sliding bearings in dependence to grain sizes of abrasive cloths and hardness of bearing layers received with the use of vibroacoustic diagnostics and the method of artificial bases (MAB) in testing on the SMC-2 frictional machine. These patterns can be helpful for the assessment of quality and selection of materials for products [1,2], selection of the friction model [3], and selection of abrasive cloths for the diagnostics of the latter and assessment of the running-in period for the top coating

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Лемешева, E. Lemesheva, Митин, S. Mitin, Кондрико, and A. Kondriko. "ANALYSIS OF KNOWN METHODS OF DIAGNOSIS OF INTERNAL COMBUSTION ENGINES." Alternative energy sources in the transport-technological complex: problems and prospects of rational use of 2, no. 2 (2015): 445–49. http://dx.doi.org/10.12737/19307.

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The article analyzes the effective methods and techniques of diagnosing gasoline internal combustion engines, highlighted the most promising ones. Of the existing seven modern methods considered: thermal control, computer diagnostics, analysis of the composition and quantity of waste gases, technical endoskopirovanie, gauging the compression, the analysis of chemical elements and vibroacoustic. On the presented methods compiled a comparative table on a number of parameters: the cost of ongoing services, the cost of equipment, the length of the diagnostic information content requirements for pe

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Ivshin, I. V. "Diagnostics of GTE turbine blades using a new vibroacoustic method." Russian Aeronautics (Iz VUZ) 52, no. 4 (2009): 468–73. http://dx.doi.org/10.3103/s1068799809040151.

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Kozochkin, M. P., F. S. Sabirov, D. N. Suslov, and A. P. Abramov. "Vibroacoustic diagnostics of spindle bearings in high-speed machine tools." Russian Engineering Research 30, no. 9 (2010): 944–47. http://dx.doi.org/10.3103/s1068798x10090194.

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Grigor’ev, S. N., and M. P. Kozochkin. "Improvement of machining by the vibroacoustic diagnostics of electrophysical processes." Russian Engineering Research 35, no. 11 (2015): 801–6. http://dx.doi.org/10.3103/s1068798x15110064.

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Lepikhova, Viktoriya. "ALGORITHMIZATION FOR VIBROACOUSTIC DIAGNOSTICS OF MECHANICAL COMPONENTS OF TRACTION MOTORS." University News. North-Caucasian Region. Technical Sciences Series, no. 2 (June 2023): 112–15. http://dx.doi.org/10.17213/1560-3644-2023-2-112-115.

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Sundukov, Aleksandr E., and Evgeniy V. Shahmatov. "Teeth matching frequency in vibration diagnostics of technical condition of aviation gas turbine engine gearboxes." Journal of Dynamics and Vibroacoustics 10, no. 3 (2024): 93–98. http://dx.doi.org/10.18287/2409-4579-2024-10-3-93-98.

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The performance of an aviation gas turbine engine with gearbox is largely determined by the technical condition of this unit. Vibroacoustic diagnostics is the most effective method for identifying defects in rotary machines. It is generally recognized that the most informative diagnostic signs of gearing defects are the intensity of tooth harmonic and its multiples. However, in this case it is necessary to carry out vibration measurements in a wide frequency range. On the example of defects of the NK-12 engine gearbox we have shown that the use of the parameters of teeth matching frequency can

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Merkisz-Guranowska, Agnieszka, and Marek Waligórski. "Analysis of vibroacoustic estimators for a heavy-duty diesel engine used in sea transport in the aspect of diagnostics of its environmental impact." Journal of Vibroengineering 18, no. 2 (2016): 1346–57. http://dx.doi.org/10.21595/jve.2016.16863.

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The paper describes the impact of a marine engine operation on selected vibroacoustic quantity estimators and their characteristics made in different signal domains. The authors focused on the assessment of the combustion process diagnostic for the engine operating characteristics to obtain information on its functional relations and its nature determined by changes in the main structural and operational point measures, in a powertrain of a non-road means of sea transport. In the empirical research, the vibration, acoustic signal generation and its propagation have been selected to obtain quan

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Shadmonhodzhaev, Murodilla, Aleksey Zelenchenko, and Igor' Rolle. "Mathematical Model of Locomotive Wheel-Motor Block for the Conditions of Diagnostics Technological Process for Bearing Units at the Position of Vibroacoustic Control." Proceedings of Petersburg Transport University 19, no. 4 (2022): 832–38. http://dx.doi.org/10.20295/1815-588x-2022-4-832-838.

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Purpose: The conduction of experimental studies in the conditions of locomotive depot, the transition to mathematical modeling of wheel-motor block for the conditions of diagnostics position, not allowing disassembly, of traction electric motor bearings. Methods: Diagnostic complexes allowing to determine wheel-motor block technical state in locomotive depots. In order to determine the approaches for the choice and evaluation of power source parameters for vibroacoustic diagnostics position, not allowing disassembly, of wheel-motor blocks of locomotive depot the analysis of designing methodolo

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Kuznetsov, V. H., and O. M. Poliakh. "THE REQUIRED NUMBER DETERMINATION OF MEASUREMENTS FOR ADVANCED VIBRO AND ACOUSTIC METHOD OF DIAGNOSTICS OF REINFORCED CONCRETE OF THE CONTACT ENVIRONMENT." Science and Transport Progress, no. 20 (February 25, 2008): 58–62. http://dx.doi.org/10.15802/stp2008/16484.

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MERKISZ, Jerzy, and Marek WALIGÓRSKI. "Recognition of combustion process irregularities in small volume displacement diesel engines with the use of non-dimensional characteristics of the vibration signal." Combustion Engines 169, no. 2 (2017): 18–23. http://dx.doi.org/10.19206/ce-2017-204.

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The subject of the considerations described in the paper is the problem of early detection of abnormalities and damages during operation process of the turbo diesel engine with small volume displacement and direct fuel injection, which is used in modern LDV vehicles dedicated especially for urban areas, in the context of present and future requirements for a technical object diagnostics, taking into account the criteria of optimizing overall efficiency, toxic compound emission and safety of the object in real conditions of its operation. The paper presents the results of empirical research of

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Dąbrowski, Zbigniew, and Jacek Dziurdź. "Simultaneous Analysis of Noise and Vibration of Machines in Vibroacoustic Diagnostics." Archives of Acoustics 41, no. 4 (2016): 783–89. http://dx.doi.org/10.1515/aoa-2016-0075.

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Abstract The article is a continuation of the authors’ elaboration (Dąbrowski, Dziurdź, 2016). The aim of this continuation is to prove that a proposed way of modelling and using the coherent analysis to filter nonlinear disturbances is a useful technique in vibroacoustic diagnostics. The thesis was proved by solving the task of diagnosing the damage of the gear of the car gearbox on the basis of the measurement of mechanical vibrations and the noise in the engine chamber.

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Gimadeev, Mikhail, Vadim Stelmakov, and Evgenii Shelenok. "Product life cycle: machining processes monitoring and vibroacoustic signals filtering." Metal Working and Material Science 26, no. 3 (2024): 94–113. http://dx.doi.org/10.17212/1994-6309-2024-26.3-94-113.

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Introduction. In modern manufacturing, the product life cycle comprises various stages, from conception to disposal. Among these stages, machining plays a significant role, as it directly influences the durability and functionality of the finished product. With increasing competition and the need to reduce production costs, optimizing machining processes has become a crucial task. Traditionally, conservative technological approaches have been used to ensure processing quality. However, this often leads to decreased productivity and higher costs. Modern monitoring and diagnostic techniques can

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Burda, E. A., G. V. Zusman, I. S. Kudryavtseva, and A. P. Naumenko. "METHODS OF CONDITION MONITORING AND DIAGNOSTICS OF ROLLING BEARINGS OF CENTRIFUGAL MACHINES AND MECHANISMS." Kontrol'. Diagnostika, no. 282 (December 2021): 46–62. http://dx.doi.org/10.14489/td.2021.12.pp.046-062.

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The perfection of methods and means of non-destructive testing and technical diagnostics is determined by the level of development of science and modern industrial technologies. The desire to develop technologies determines the growing needs for monitoring the state of substances, materials, products, and now the control of the state of the natural environment is becoming more and more relevant. Methods and means of condition monitoring and diagnostics of rolling bearings have been developed and developed for more than 60 years. Despite certain successes, today there is no information about th

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Walid Ibrahim Alnusirat, Litvin Оleksandr, Ibrahim Farhan Alrefo, and Kravez Оleksandr. "TOOL FOR RESEARCHING THE DYNAMIC SYSTEM OF METAL-CUTTING MACHINE." World Science, no. 9(37) (September 30, 2018): 5–9. http://dx.doi.org/10.31435/rsglobal_ws/30092018/6128.

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    Dynamic characteristics of the system flexibility of the machine affect the accuracy of machining, so the study of this problem is very important. Fluctuations of the machine elements significantly affect the error of the shape of the workpiece. The quality of the processing is determined not so much by the static displacements between the tool and the workpiece but the stability of the machine system as a whole. There are many solutions of vibroacoustic diagnostics devices for machines and machine-tools in the related publications. Defects in the spectrum of vibroa

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