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Vibration–Structural Study of Centrifugal Pumps 离心泵振动结构研究
IF 0.4
Journal of Machinery Manufacture and Reliability Pub Date : 2025-06-25 DOI: 10.1134/S1052618825700098
M. S. Rahimova, S. G. Abbasov, A. S. Akhmedov, I. M. Kerimova
{"title":"Vibration–Structural Study of Centrifugal Pumps","authors":"M. S. Rahimova,&nbsp;S. G. Abbasov,&nbsp;A. S. Akhmedov,&nbsp;I. M. Kerimova","doi":"10.1134/S1052618825700098","DOIUrl":"10.1134/S1052618825700098","url":null,"abstract":"<p>This article is dedicated to the study of vibration and cavitation occurring in centrifugal pumps. Modern machines consist of a large number of elements that interact with each other, and their relative movement creates a vibrational process. Using vibrodiagnostic methods, it is possible to identify faults in advance, enhance the efficiency and service life, extend the maintenance intervals, and reduce the time spent on fault detection.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"54 3","pages":"288 - 292"},"PeriodicalIF":0.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145169826","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}
引用次数: 0
Studies of the Tribological Characteristics of Carbon Materials for GTE Seals GTE密封用碳材料摩擦学特性研究
IF 0.4
Journal of Machinery Manufacture and Reliability Pub Date : 2025-06-25 DOI: 10.1134/S1052618825700177
A. Yu. Albagachiev, L. V. Gavrilina, A. V. Koshelev, O. I. Kulakov, S. V. Morozov, D. L. Rakov
{"title":"Studies of the Tribological Characteristics of Carbon Materials for GTE Seals","authors":"A. Yu. Albagachiev,&nbsp;L. V. Gavrilina,&nbsp;A. V. Koshelev,&nbsp;O. I. Kulakov,&nbsp;S. V. Morozov,&nbsp;D. L. Rakov","doi":"10.1134/S1052618825700177","DOIUrl":"10.1134/S1052618825700177","url":null,"abstract":"<p>Considering that an urgent task is to reduce the wear of sealing elements, which leads to losses in the efficiency of gas turbine engines and an increase in the cost of maintenance, studies were conducted on pyrographite isotropic and bulk carbon nanostructured material according to the disc-pad friction scheme. Regression models for calculating the wear intensity and friction coefficient are proposed. The analysis conducted of the results of experimental studies of materials showed that confirmation of the stability of the friction coefficient and bulk temperature in the steady-state operating mode during long-term operation of the friction pair was obtained, and the wear of the sample of the contact pair of bulk carbon nanostructured material with nitriding is significantly lower than that of the contact pair of bulk carbon nanostructured material with a steel disc with a VK-25M coating.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"54 3","pages":"326 - 332"},"PeriodicalIF":0.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145169828","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}
引用次数: 0
Application of Digital Systems in Repair Enterprises 数字系统在维修企业中的应用
IF 0.4
Journal of Machinery Manufacture and Reliability Pub Date : 2025-06-25 DOI: 10.1134/S1052618825700050
P. V. Golinitskii, U. Yu. Antonova, E. I. Cherkasova
{"title":"Application of Digital Systems in Repair Enterprises","authors":"P. V. Golinitskii,&nbsp;U. Yu. Antonova,&nbsp;E. I. Cherkasova","doi":"10.1134/S1052618825700050","DOIUrl":"10.1134/S1052618825700050","url":null,"abstract":"<p>The peculiarities of repair enterprises, such as the irregularity of the work performed and its diversity, increase the workload of employees, who are usually not assigned to one operation and are more versatile specialists. The introduction of digital systems allows reducing the number of personnel errors, but the greatest effect can be achieved only by creating a single information environment. The use of the process approach will ensure the formation of a process register on the basis of which it is possible to organize traceability of parts, improve control and measurement procedures that will reduce the number of errors, and also allow analyzing the process based on the collected data. Such systems, united by a single information environment, help to predict post-repair indicators and bring the quality of repaired parts closer to new ones.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"54 3","pages":"306 - 311"},"PeriodicalIF":0.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145169035","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}
引用次数: 0
Optimization of the Two-Stage Cylindrical Reducer 两级圆柱减速器的优化设计
IF 0.4
Journal of Machinery Manufacture and Reliability Pub Date : 2025-06-25 DOI: 10.1134/S1052618825700141
I. G. Chalabi, Sh. B. Charkasov, Sh. T. Yusubov
{"title":"Optimization of the Two-Stage Cylindrical Reducer","authors":"I. G. Chalabi,&nbsp;Sh. B. Charkasov,&nbsp;Sh. T. Yusubov","doi":"10.1134/S1052618825700141","DOIUrl":"10.1134/S1052618825700141","url":null,"abstract":"<p>The article considers the problem of optimizing a two-stage cylindrical gearbox according to two different criteria. The response speed of the gearbox and the minimum weight are accepted as optimization parameters. To increase the response speed of the gearbox, a formula is proposed that considers the rational distribution of the total gear ratio between the gearbox stages. A similar approach was used to optimize the minimum weight and eventually put forward proposals for the logical distribution of the gear ratio between the stages according to these two criteria.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"54 3","pages":"239 - 247"},"PeriodicalIF":0.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145169822","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}
引用次数: 0
Statistical Approaches to Analysis of the Roughness of Vertical Surfaces of Samples Manufactured by the SLM Technology from AlSi10Mg Powder AlSi10Mg粉末SLM工艺样品垂直表面粗糙度的统计分析
IF 0.4
Journal of Machinery Manufacture and Reliability Pub Date : 2025-04-06 DOI: 10.1134/S1052618824701802
K. S. Korobov, A. V. Ripetsky, I. A. Nikolaev, L. N. Lesnevsky
{"title":"Statistical Approaches to Analysis of the Roughness of Vertical Surfaces of Samples Manufactured by the SLM Technology from AlSi10Mg Powder","authors":"K. S. Korobov,&nbsp;A. V. Ripetsky,&nbsp;I. A. Nikolaev,&nbsp;L. N. Lesnevsky","doi":"10.1134/S1052618824701802","DOIUrl":"10.1134/S1052618824701802","url":null,"abstract":"<p>Selective laser melting technology has become widespread in various industries, but a significant problem with selective laser melting, which remains to this day, is the high roughness of the surfaces of the parts being created, which prevents their subsequent use. An analysis of works devoted to the study and minimization of roughness on both horizontal and vertical surfaces grown at different angles to the construction platform was carried out. This study focuses on statistical processing using a correlation matrix of the results of the influence of the power, speed, and linear energy density (LED) on the roughness of vertically growing surfaces. To determine the influence of the LED value on the roughness of the vertical surfaces, four parameters were used: <i>Ra</i>, <i>Rz</i>, <i>Sa</i>, and <i>Sz</i>. The obtained results showed that, when using a certain value of the linear energy input, the vertical roughness <i>Ra</i> of the surface area of samples can be reduced from 15 to 2.5 µm.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"54 2","pages":"150 - 158"},"PeriodicalIF":0.4,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143784168","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}
引用次数: 0
Improving the Surface Quality of Gear Trains by Combined Finishing Treatment 复合精加工提高齿轮系表面质量
IF 0.4
Journal of Machinery Manufacture and Reliability Pub Date : 2025-04-06 DOI: 10.1134/S1052618824701838
A. Yu. Albagachiev, A. P. Yakovleva, A. G. Karavanova
{"title":"Improving the Surface Quality of Gear Trains by Combined Finishing Treatment","authors":"A. Yu. Albagachiev,&nbsp;A. P. Yakovleva,&nbsp;A. G. Karavanova","doi":"10.1134/S1052618824701838","DOIUrl":"10.1134/S1052618824701838","url":null,"abstract":"<p>When manufacturing gears and gear trains, a significant amount of scrap is generated due to thermal burns and cracks. This article presents a combined finishing process aimed at reducing defects, that is, burns and thermal cracks, on the involute surface of gear trains. Theoretical studies have been conducted to investigate the influence of combined finishing processing parameters on the temperature in the cutting zone, as well as the magnitude and sign of residual stresses after the combined finishing treatment. A comparison of the obtained values with experimental studies has been made.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"54 2","pages":"167 - 174"},"PeriodicalIF":0.4,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143784193","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}
引用次数: 0
Study of Finishing and Hardening Machining of Cycloidal Screw Surfaces in a Single Setup with Shaping 摆线螺杆表面单台成形精加工与硬化加工研究
IF 0.4
Journal of Machinery Manufacture and Reliability Pub Date : 2025-04-06 DOI: 10.1134/S1052618824701796
I. O. Zenin, P. D. Akulinichev, M. A. Al’bov, A. A. Goncharov
{"title":"Study of Finishing and Hardening Machining of Cycloidal Screw Surfaces in a Single Setup with Shaping","authors":"I. O. Zenin,&nbsp;P. D. Akulinichev,&nbsp;M. A. Al’bov,&nbsp;A. A. Goncharov","doi":"10.1134/S1052618824701796","DOIUrl":"10.1134/S1052618824701796","url":null,"abstract":"<p>The process of designing an experiment for the implementation of finishing–hardening machining of the cycloidal screw surface of a screw pump rotor using surface plastic deformation with computer controlled tooling in a single setup with shape formation is discussed. An experiment is described that confirms the efficiency of the proposed machining strategy. The results can be applied at the stage of technological preparation for the production of screw pumps.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"54 2","pages":"195 - 199"},"PeriodicalIF":0.4,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143784201","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}
引用次数: 0
Analysis of the Characteristics of the Linear and Inertia Friction Welding Processes of Nickel Alloys 镍合金线性和惯性摩擦焊接工艺特点分析
IF 0.4
Journal of Machinery Manufacture and Reliability Pub Date : 2025-04-06 DOI: 10.1134/S1052618824701851
A. Yu. Medvedev, V. R. Galimov, A. N. Pautov, A. A. Miniakhmetov, T. T. Fozilov
{"title":"Analysis of the Characteristics of the Linear and Inertia Friction Welding Processes of Nickel Alloys","authors":"A. Yu. Medvedev,&nbsp;V. R. Galimov,&nbsp;A. N. Pautov,&nbsp;A. A. Miniakhmetov,&nbsp;T. T. Fozilov","doi":"10.1134/S1052618824701851","DOIUrl":"10.1134/S1052618824701851","url":null,"abstract":"<p>The processes of inertia and linear friction welding of heat-resistant nickel alloys VZh-175, EP-742, and EP-741 are discussed. The programs developed for analyzing the characteristics for linear and inertia friction welding are analyzed. The developed finite-difference models of the temperature field are also described, the main features of which are the movement of the friction boundary, which simulates the process of upsetting. The analysis of the kinematic, force, energy, and temperature characteristics of linear and rotary friction welding cycles is carried out. Comparison of linear and rotary welding cycles by 14 characteristics showed that the most informative in terms of data transfer are the upsetting rate and the upset value, the temperature at the joint, the specific thermal power, work on upsetting the unit volume, and the coefficient of friction.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"54 2","pages":"182 - 189"},"PeriodicalIF":0.4,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143784196","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}
引用次数: 0
The Issue of Type Synthesis of Kinematic Chains of Spherical Parallel Mechanisms with Linear Drives 线性驱动球面并联机构运动链的类型综合问题
IF 0.4
Journal of Machinery Manufacture and Reliability Pub Date : 2025-04-06 DOI: 10.1134/S1052618824701760
P. A. Laryushkin, A. A. Khrestina, Yu. V. Sinitsyna, A. V. Semenov
{"title":"The Issue of Type Synthesis of Kinematic Chains of Spherical Parallel Mechanisms with Linear Drives","authors":"P. A. Laryushkin,&nbsp;A. A. Khrestina,&nbsp;Yu. V. Sinitsyna,&nbsp;A. V. Semenov","doi":"10.1134/S1052618824701760","DOIUrl":"10.1134/S1052618824701760","url":null,"abstract":"<p>The issue of structural synthesis of kinematic chains of spherical parallel mechanisms with linear drives is considered. Screw calculus is used to analyze the mobility of chains. Possible structures of chains, including three and four passive rotary kinematic pairs, are successively investigated. It is shown that, if there are three rotary pairs in the chain, the synthesis of a spherical mechanism with linear drives is impossible, and the use of chains with four rotary pairs for this purpose is possible if there is a planar dyad in the chain, including a driving prismatic pair and two rotary pairs.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"54 2","pages":"125 - 132"},"PeriodicalIF":0.4,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143784167","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}
引用次数: 0
Constitutive Equations of a Plastically Deformable Body with FEM-Based Implementation in the Calculation of a Shell Considering Shear Strain 考虑剪切应变的壳计算中塑性变形体本构方程的有限元实现
IF 0.4
Journal of Machinery Manufacture and Reliability Pub Date : 2025-04-06 DOI: 10.1134/S1052618824701814
M. Yu. Klochkov, V. A. Pshenichkina, A. P. Nikolaev, Yu. V. Klochkov, O. V. Vakhnina, T. A. Sobolevskaya
{"title":"Constitutive Equations of a Plastically Deformable Body with FEM-Based Implementation in the Calculation of a Shell Considering Shear Strain","authors":"M. Yu. Klochkov,&nbsp;V. A. Pshenichkina,&nbsp;A. P. Nikolaev,&nbsp;Yu. V. Klochkov,&nbsp;O. V. Vakhnina,&nbsp;T. A. Sobolevskaya","doi":"10.1134/S1052618824701814","DOIUrl":"10.1134/S1052618824701814","url":null,"abstract":"<p>In the calculation of a thin shell taking into account the transverse shear deformation based on the Timoshenko hypothesis, the results of the elastic–plastic stress state are compared using the constitutive relations in two variants with implementation of the step loading method. In the first variant, the constitutive equations are obtained by differentiating the relations of the plasticity deformation theory with the unchanged metric of the deformation process. The cumbersomeness of expressions is emphasized even with an unchanged metric of the deformation process. In the second variant, the constitutive equations at the loading step are obtained using the hypothesis of a proportional relationship between the components of deviators of the stress and strain increments without dividing the strain increments into elastic and plastic parts. A quadrangular fragment of the middle surface of the shell with kinematic nodal unknowns in the form of displacements and their first derivatives is adopted as a finite element. The efficiency of the developed constitutive equations for taking into account physical nonlinearity is shown using the example of calculation of the shell.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"54 2","pages":"133 - 142"},"PeriodicalIF":0.4,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143784169","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}
引用次数: 0
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