Pub Date : 2024-05-27DOI: 10.1134/s1052618824700092
B. P. Trofimenko, A. V. Markelov
Abstract
The possibility of using water-based lubricants in bearings is examined. An overview of the different types of water-based lubricants, their composition and properties, and methods of their application in bearings are provided. Particular attention is paid to studies showing the effectiveness of water-based lubricants in reducing friction and wear and increasing the energy efficiency of bearings. The research results confirm the potential of water-based lubricants for use in various industrial sectors where high performance and reduced environmental impact are required. Valuable information for engineers and manufacturers seeking to improve bearing performance and reduce the environmental impact is provided.
{"title":"Improvement of Technical Operation of Rolling Stock through the Application of New Synthetic Lubricant Compositions","authors":"B. P. Trofimenko, A. V. Markelov","doi":"10.1134/s1052618824700092","DOIUrl":"https://doi.org/10.1134/s1052618824700092","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The possibility of using water-based lubricants in bearings is examined. An overview of the different types of water-based lubricants, their composition and properties, and methods of their application in bearings are provided. Particular attention is paid to studies showing the effectiveness of water-based lubricants in reducing friction and wear and increasing the energy efficiency of bearings. The research results confirm the potential of water-based lubricants for use in various industrial sectors where high performance and reduced environmental impact are required. Valuable information for engineers and manufacturers seeking to improve bearing performance and reduce the environmental impact is provided.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141170117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-27DOI: 10.1134/s1052618824700043
F. G. Akhmatshin, I. A. Petrova, L. A. Kazakovtsev, I. N. Kravchenko
Abstract
A reduction in the James–Stein shrinkage estimator might significantly increase the accuracy of cluster analysis of k-means for a relatively broad range of data. The efficiency of using the James–Stein shrinkage estimator for automatically grouping industrial products in homogeneous production batches is considered. Tests are conducted for batches of integrated circuits by comparing the shrinkage results with those obtained using the traditional k-means algorithm. The dataset is normalized according to the values of the acceptable drift, acceptable parameters, and standard deviation. As established using the Rand index, clustering is far more accurate in the automatic grouping of industrial products in homogeneous production batches, when average values of inconclusive parameters drop to zero. It is established that the reduction of the James–Stein shrinkage estimator decreases the influence of inconclusive parameters of standard data to acceptable values.
{"title":"Reducing the James–Stein Shrinkage Estimator for Automatically Grouping Heterogeneous Production Batches","authors":"F. G. Akhmatshin, I. A. Petrova, L. A. Kazakovtsev, I. N. Kravchenko","doi":"10.1134/s1052618824700043","DOIUrl":"https://doi.org/10.1134/s1052618824700043","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A reduction in the James–Stein shrinkage estimator might significantly increase the accuracy of cluster analysis of <i>k</i>-means for a relatively broad range of data. The efficiency of using the James–Stein shrinkage estimator for automatically grouping industrial products in homogeneous production batches is considered. Tests are conducted for batches of integrated circuits by comparing the shrinkage results with those obtained using the traditional <i>k-</i>means algorithm. The dataset is normalized according to the values of the acceptable drift, acceptable parameters, and standard deviation. As established using the Rand index, clustering is far more accurate in the automatic grouping of industrial products in homogeneous production batches, when average values of inconclusive parameters drop to zero. It is established that the reduction of the James–Stein shrinkage estimator decreases the influence of inconclusive parameters of standard data to acceptable values.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141170078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-27DOI: 10.1134/s1052618824700122
V. P. Lyalyakin, V. A. Denisov, A. A. Evsyukov
Abstract
Electric spark machining allows coated parts to be coated with any electrically conductive materials, ensuring good adhesion to the base material, thereby restoring worn surfaces. However, limitations on the thickness of the applied coating significantly affect its distribution when restoring parts with wear of more than 0.2 mm. One way to solve this problem when restoring parts with increased wear is electric spark processing using composite electrodes with carbon nanotubes. Thanks to the use of a composite electrode with carbon nanotubes, it was possible to increase the thickness of the coating by 2–4 times, which will expand the range of the restored parts. At the same time, the microhardness of the coatings decreased when carbon nanotubes were added to the electrode, but under certain conditions it was possible to achieve a microhardness value comparable to coatings from BrO10S10 electrodes.
{"title":"Physical and Mechanical Properties of Electrospark Coatings Applied by Electrospark Treatment with a Composite Electrode","authors":"V. P. Lyalyakin, V. A. Denisov, A. A. Evsyukov","doi":"10.1134/s1052618824700122","DOIUrl":"https://doi.org/10.1134/s1052618824700122","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Electric spark machining allows coated parts to be coated with any electrically conductive materials, ensuring good adhesion to the base material, thereby restoring worn surfaces. However, limitations on the thickness of the applied coating significantly affect its distribution when restoring parts with wear of more than 0.2 mm. One way to solve this problem when restoring parts with increased wear is electric spark processing using composite electrodes with carbon nanotubes. Thanks to the use of a composite electrode with carbon nanotubes, it was possible to increase the thickness of the coating by 2–4 times, which will expand the range of the restored parts. At the same time, the microhardness of the coatings decreased when carbon nanotubes were added to the electrode, but under certain conditions it was possible to achieve a microhardness value comparable to coatings from BrO10S10 electrodes.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141170144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-27DOI: 10.1134/s105261882470002x
N. S. Azikov, A. V. Zinin
Abstract
The supercritical deformation of quadrangular multilayer composite panels has been studied, taking into account geometric nonlinearity for deflections commensurate with the thickness of the plate. The solution of the problem on eigenvalues and eigenvectors is carried out in displacements by the Rayleigh–Ritz method. The dependences of the deflection amplitude on the contour forces were found, and basic relations were obtained for assessing the stress–strain state of composite quadrangular panels with arbitrary boundary conditions after loss of stability in compression and shear. Based on the strength criteria of anisotropic materials, the destructive forces after loss of stability are determined.
{"title":"Nonlinear Deformation and Load-Loading Capacity of Quadrangular Composite Panels","authors":"N. S. Azikov, A. V. Zinin","doi":"10.1134/s105261882470002x","DOIUrl":"https://doi.org/10.1134/s105261882470002x","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The supercritical deformation of quadrangular multilayer composite panels has been studied, taking into account geometric nonlinearity for deflections commensurate with the thickness of the plate. The solution of the problem on eigenvalues and eigenvectors is carried out in displacements by the Rayleigh–Ritz method. The dependences of the deflection amplitude on the contour forces were found, and basic relations were obtained for assessing the stress–strain state of composite quadrangular panels with arbitrary boundary conditions after loss of stability in compression and shear. Based on the strength criteria of anisotropic materials, the destructive forces after loss of stability are determined.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141170145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-27DOI: 10.1134/s1052618824700109
P. A. Popov, A. A. Igolkin, E. V. Shakhmatov
Abstract
A scientific approach based on analysis of the acoustic noise intensity, based on the theory of mathematical series, which made it possible to solve successfully the problem of assessing the error of results obtained when conducting experiments to find sound insulation parameters, is presented. Identified patterns found their application in the process of designing a special structure for an experiment.
{"title":"Assessment of the Influence of Equipment on the Experimental Result When Determining the Sound Insulation Parameters of a Panel Structure","authors":"P. A. Popov, A. A. Igolkin, E. V. Shakhmatov","doi":"10.1134/s1052618824700109","DOIUrl":"https://doi.org/10.1134/s1052618824700109","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A scientific approach based on analysis of the acoustic noise intensity, based on the theory of mathematical series, which made it possible to solve successfully the problem of assessing the error of results obtained when conducting experiments to find sound insulation parameters, is presented. Identified patterns found their application in the process of designing a special structure for an experiment.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141173237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-27DOI: 10.1134/s1052618824700079
A. S. Akhmedov, M. S. Ragimova, F. M. Gafarov
Abstract
This study considers the application of standard operation array designs of cementing equipment using various numbers of pumping and mixing facilities for ensuring uninterrupted implementation of the cementing process. A design operational reliability model of various standard piping layouts is developed. Several piping layout types are considered individually. According to the outfit-mouth function chart, a ready-mix mud is pumped by the facility right into the well.
{"title":"Method of Calculating the Operational Reliability of Standard Process Systems","authors":"A. S. Akhmedov, M. S. Ragimova, F. M. Gafarov","doi":"10.1134/s1052618824700079","DOIUrl":"https://doi.org/10.1134/s1052618824700079","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>This study considers the application of standard operation array designs of cementing equipment using various numbers of pumping and mixing facilities for ensuring uninterrupted implementation of the cementing process. A design operational reliability model of various standard piping layouts is developed. Several piping layout types are considered individually. According to the outfit-mouth function chart, a ready-mix mud is pumped by the facility right into the well.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141170786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-27DOI: 10.1134/s1052618824700031
P. V. Golinitskii, U. Yu. Antonova, G. N. Temasova, E. I. Cherkasova, D. U. Khasyanova
Abstract
This article considers the application of digital technologies in repair agencies, considering several peculiarities, such as heterogeneous manufactured output, unsteady manufacturing as well as detailed checkout, application of the process-based approach together with automated control systems, automated preproduction engineering, equipment control and information collection, and enterprise management. The unified information environment formed by these systems reduces the number of incorrectly rejected and accepted parts by 75–80% and excludes wrong repair decisions and reduces the time needed for decision-making.
{"title":"Digitalization of Fault Detection in Crankshafts","authors":"P. V. Golinitskii, U. Yu. Antonova, G. N. Temasova, E. I. Cherkasova, D. U. Khasyanova","doi":"10.1134/s1052618824700031","DOIUrl":"https://doi.org/10.1134/s1052618824700031","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>This article considers the application of digital technologies in repair agencies, considering several peculiarities, such as heterogeneous manufactured output, unsteady manufacturing as well as detailed checkout, application of the process-based approach together with automated control systems, automated preproduction engineering, equipment control and information collection, and enterprise management. The unified information environment formed by these systems reduces the number of incorrectly rejected and accepted parts by 75–80% and excludes wrong repair decisions and reduces the time needed for decision-making.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141170491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-27DOI: 10.1134/s1052618824700018
Yu. G. Matvienko, I. E. Vasil’ev, D. V. Chernov, A. G. Kalinin, A. V. Pankov
Abstract
The essence of the proposed methodology for monitoring the kinetics of damage to a deformed material is to establish a correspondence between micro-, meso-, and macrodamage, and the acoustic emission pulses generated in this case. During the loading process of a product, the recorded pulses are divided into pulse flows of low (H), middle (C), and high (B) energy levels, corresponding to the energy of destruction of structural bonds. By calculating the current values of the partial content of acoustic emission pulses in the H, C, and B clusters generated by micro-, meso-, and macrodamage, and comparing them with the threshold ones established during destruction, the load-bearing capacity current level of a product during loading is determined. Application of the developed methodology for identifying zones of developing damage and assessing the load-bearing capacity of the current state of stringers under loading conditions during interlayer shear tests is considered.
摘要 所提出的变形材料损伤动力学监测方法的实质是在微观、中观和宏观损伤与在此情况下产生的声发射脉冲之间建立对应关系。在产品的加载过程中，记录的脉冲分为低（H）、中（C）和高（B）能级的脉冲流，与结构键的破坏能量相对应。通过计算由微观、中观和宏观破坏产生的 H、C 和 B 簇中部分声发射脉冲的电流值，并将其与破坏过程中设定的阈值进行比较，就能确定产品在加载过程中的承载能力电流水平。在层间剪切试验中，考虑应用所开发的方法来确定破坏发展区，并评估弦杆在加载条件下的当前状态的承载能力。
{"title":"Structural–Phenomenological Concept and Acoustic-Emission Diagnostics of Composite Stringers under Three-Point Bending Conditions","authors":"Yu. G. Matvienko, I. E. Vasil’ev, D. V. Chernov, A. G. Kalinin, A. V. Pankov","doi":"10.1134/s1052618824700018","DOIUrl":"https://doi.org/10.1134/s1052618824700018","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The essence of the proposed methodology for monitoring the kinetics of damage to a deformed material is to establish a correspondence between micro-, meso-, and macrodamage, and the acoustic emission pulses generated in this case. During the loading process of a product, the recorded pulses are divided into pulse flows of low (H), middle (C), and high (B) energy levels, corresponding to the energy of destruction of structural bonds. By calculating the current values of the partial content of acoustic emission pulses in the H, C, and B clusters generated by micro-, meso-, and macrodamage, and comparing them with the threshold ones established during destruction, the load-bearing capacity current level of a product during loading is determined. Application of the developed methodology for identifying zones of developing damage and assessing the load-bearing capacity of the current state of stringers under loading conditions during interlayer shear tests is considered.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141170245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-17DOI: 10.1134/s1052618824020109
N. A. Makhutov
Abstract
The processes of elastic and elastoplastic deformation in concentration zones are analyzed for the case of different levels of rated stresses and resistance with respect to plastic strains. Based on the calculated and experimental data, it is shown that, with a decrease in the strengthening index in the inelastic region, the inhomogeneity of the strain distribution exhibits an increase. At the same time, the strain concentration coefficients increase and the stress concentration coefficients decrease. Special cases are considered when the latter are less than unity. This is important for justifying the strength, service life, survivability, and safety of new objects of the technosphere made of special structural materials and operated under extreme thermomechanical loading conditions, including the conditions inherent in nuclear power plants in normal modes and emergency situations.
{"title":"Analyzing Stress and Strain Concentration in the Inelastic Region for Strengthening and Softening Materials","authors":"N. A. Makhutov","doi":"10.1134/s1052618824020109","DOIUrl":"https://doi.org/10.1134/s1052618824020109","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The processes of elastic and elastoplastic deformation in concentration zones are analyzed for the case of different levels of rated stresses and resistance with respect to plastic strains. Based on the calculated and experimental data, it is shown that, with a decrease in the strengthening index in the inelastic region, the inhomogeneity of the strain distribution exhibits an increase. At the same time, the strain concentration coefficients increase and the stress concentration coefficients decrease. Special cases are considered when the latter are less than unity. This is important for justifying the strength, service life, survivability, and safety of new objects of the technosphere made of special structural materials and operated under extreme thermomechanical loading conditions, including the conditions inherent in nuclear power plants in normal modes and emergency situations.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140609297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-17DOI: 10.1134/s1052618824020031
A. N. Bolotov, L. E. Afanas’eva, V. I. Gul’tyaev, A. A. Alekseev
Abstract
The formation and development of cracks in samples made of ferromagnetic material, cast iron grade SCh 35, which are in a uniformly magnetized state under the influence of an internal magnetic field with a strength of more than 20 kA/m, has been studied. The anisotropic nature of quasi-brittle fracture and the magnitude of mechanical stresses at which fracture occurs are shown. Cracks propagating along magnetic field lines dominate. A possible reason for this is the magnetic interaction between the surfaces of the microcrack.
{"title":"Quasi-Brittle Fracture of Ferromagnetic Material in a Magnetic Field","authors":"A. N. Bolotov, L. E. Afanas’eva, V. I. Gul’tyaev, A. A. Alekseev","doi":"10.1134/s1052618824020031","DOIUrl":"https://doi.org/10.1134/s1052618824020031","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The formation and development of cracks in samples made of ferromagnetic material, cast iron grade SCh 35, which are in a uniformly magnetized state under the influence of an internal magnetic field with a strength of more than 20 kA/m, has been studied. The anisotropic nature of quasi-brittle fracture and the magnitude of mechanical stresses at which fracture occurs are shown. Cracks propagating along magnetic field lines dominate. A possible reason for this is the magnetic interaction between the surfaces of the microcrack.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140617721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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