Journal of Machinery Manufacture and Reliability最新文献

{"title":"Effect of the Material Structure (Texture) on the Martensitic Transformation Mechanism","authors":"I. S. Splavskii","doi":"10.1134/S105261882570030X","DOIUrl":"10.1134/S105261882570030X","url":null,"abstract":"<p>A material demonstrating the shape memory effect at deformation under preliminary rolling and annealing has been discussed. Strain hardening through cold work and cycling under load is studied. The effect of the texture of rolling and drawing on the mechanical and thermomechanical characteristics of the material is revealed.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"54 4","pages":"398 - 401"},"PeriodicalIF":0.4,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170616","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}

{"title":"Experimental Estimates of Elastic-Dissipative Properties of Wire Rope Vibration Isolators for Numerical Analysis of Frequency Responses of Damping Systems","authors":"S. V. Doronin,&nbsp;E. V. Moskvichev,&nbsp;E. M. Reizmunt","doi":"10.1134/S1052618825700311","DOIUrl":"10.1134/S1052618825700311","url":null,"abstract":"<p>The results of experimental estimation of the stiffness and damping of a wire rope vibration isolator for typical loading schemes are presented. The nonlinearity and anisotropy of the elastic-dissipative characteristics of the vibration isolator are studied. The possibilities and limitations of using finite element models of wire rope vibration isolators to obtain frequency response by means of computational experiments are analyzed.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"54 4","pages":"444 - 451"},"PeriodicalIF":0.4,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170605","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}

{"title":"Features of the Distribution of Residual Stresses and Roughness after Laser Shock Peening","authors":"G. Zh. Sakhvadze","doi":"10.1134/S1052618825700244","DOIUrl":"10.1134/S1052618825700244","url":null,"abstract":"<p>This study develops an analytical model to determine residual stresses and surface roughness after the impact of multiple laser pulses. The effect of different parameters of laser shock peening on residual stresses, the depth of their occurrence, and the surface roughness have been studied for the V95 aluminum alloy. An increase in the laser power is found to influence the growth of compressive residual stresses, the depth of their occurrence, and surface roughness. When the laser beam radius increases, the depth of residual stress occurrence grows significantly. The growth of the overlap ratio causes an increase in residual stresses, while their occurrence depth changes slightly. During the design of the experiment, the maximum depth of compressive residual stresses and the lowest roughness can be reached by controlling the laser shock peening parameters.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"54 4","pages":"402 - 409"},"PeriodicalIF":0.4,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170604","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}

{"title":"Assessing External Losses Caused by Rejects at Mechanical Engineering Enterprises","authors":"O. A. Leonov,&nbsp;G. N. Temasova,&nbsp;Yu. G. Vergazova","doi":"10.1134/S1052618825700207","DOIUrl":"10.1134/S1052618825700207","url":null,"abstract":"<p>A methodology for assessing external losses occurring at mechanical engineering industry enterprises is presented. Primary attention is focused on the fact how accounting for these losses promotes managing production risks. A comprehensive approach to the assessment of external losses that includes analyzing not only quantitative characteristics of defects, but also financial costs required for the elimination thereof has been proposed. Particular importance is given to plotting a Pareto diagram that makes it possible to reveal the most critical types of defects from the standpoint of economic consequences. Practical examples for applying the proposed methodology at real enterprises, as well as its impact on improving the efficiency of risk management, are considered.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"54 4","pages":"418 - 425"},"PeriodicalIF":0.4,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170614","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}

{"title":"Reducing Wear of Gear Teeth in Power Takeoff Devices of Fire Trucks by Using Metal Plaque Additives","authors":"V. V. Kiselev,&nbsp;A. V. Toporov,&nbsp;V. E. Ivanov","doi":"10.1134/S1052618825700190","DOIUrl":"10.1134/S1052618825700190","url":null,"abstract":"<p>This article is devoted to solving a problem related to wear of rubbing parts of power takeoff devices of fire trucks. Analysis of the causes of failure of power takeoff devices and of the factors affecting the wear of the contacting surfaces of parts is carried out. To reduce friction, it is proposed to use an antiwear additive developed on the basis of copper and tin stearates with the addition of artificial serpentine powder. Tribological tests of the developed composition were carried out; the results are presented in this article. It was revealed that the introduction of an antiwear additive into the base lubricant allows one to reduce the friction coefficient and wear intensity of contacting surfaces.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"54 4","pages":"385 - 389"},"PeriodicalIF":0.4,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145171609","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}

{"title":"Downhole Rod Pumps with Straightening Elements of the Cylinder","authors":"Z. Allakhverdiyev,&nbsp;L. Kazimova","doi":"10.1134/S1052618825700256","DOIUrl":"10.1134/S1052618825700256","url":null,"abstract":"<p>The reliability of borehole pumps in general and its individual components is ensured during their design and manufacture. It depends on the features of the design, on the quality of manufacturing of their constituent parts, the quality of the assembly of the borehole pump as a whole and their components, as well as a number of other indicators of the technological process. The level of reliability laid down during development and ensured by production is further determined by operating conditions and other operational factors. The relevant theoretical and experimental studies of the factors affecting the operation of a downhole pump have shown that it is possible to increase the reliability of the design and the efficiency of its operation by: (1) finding ways to protect friction surfaces from the impact of abrasive, ways to level the wear of rubbing pairs in different sections; improving the design of downhole pumps in general and finding the optimal combination of configuration of the elements of the units and their interfaces, which have stable operation in the appropriate operating conditions; (2) neutralizing the causes that cause complications in the operation of the downhole pump, and finding ways to eliminate them. To solve the tasks in the indicated direction, we have chosen a constructive-technological method. According to the above, a number of variants of borehole pumps, their components and parts were developed, including: borehole pump with a sealing element in the gap between the casing and bushings; borehole pump with cylinder rectifying device; borehole pumps with centering devices in two versions; borehole pump with forced suction valve; borehole pump with a rotating plunger; special plunger resistant to abrasive wear; downhole pump resistant to hydroerosive wear, downhole pump without volume loss of liquid and with forced filling of the cylinder; downhole pump for pumping gas–liquid mixtures; a valve assembly with a ball deflector and a downhole pump with elements with minimal hydraulic resistance. This article describes the design features of the proposed developments, the principle of their operation and the necessary calculations for their implementation.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"54 4","pages":"390 - 397"},"PeriodicalIF":0.4,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170617","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}

{"title":"Assessment of Fatigue Strength of Structural Elements with Surface Defects Arising due to Mechanical Damage","authors":"V. G. Sofich,&nbsp;I. A. Razumovskii","doi":"10.1134/S1052618825700232","DOIUrl":"10.1134/S1052618825700232","url":null,"abstract":"<p>The results of development of the methodology and program for numerical modeling of the process of fatigue failure of structural elements with surface mechanical damage (defects) such as guide scratches and marks are presented. The calculation includes two stages: Stage 1 includes modeling the process of defect formation as a dynamic elastic-plastic contact problem; Stage 2 includes fatigue calculation taking into account the influence of defects and residual stress fields arising during its creation. For a number of model examples, the distributions of residual stresses in defect zones and the dependences of the maximum residual stress on the cross sectional shape of damaging elements (of various configurations (rectangular, semielliptical, wedge-shaped) and their movement speeds are obtained, and the values of the minimum movement speeds of damaging elements at which the damage of the considered type is possible for a given cross-sectional configuration are established. The results of calculations of samples made of 17G1S pipe steel with defects for resistance to fatigue failure are presented.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"54 4","pages":"375 - 384"},"PeriodicalIF":0.4,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170729","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}

{"title":"Determination of Friction Torques in Self-Lubricating Plain Bearings from Temperature Data","authors":"R. S. Tikhonov","doi":"10.1134/S1052618825700037","DOIUrl":"10.1134/S1052618825700037","url":null,"abstract":"<p>The possibility of determining the friction torques in the system of self-lubricating plain bearings by temperature data taking into account the shaft rotation speed is considered. The inverse problem of the determination of correlating with the friction torque time functions of frictional heat generation by temperature measurements in each bearing is solved by the method of iterative regularization. The results of comparing the calculated and the total friction torque measured by an inductive sensor are given.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"54 3","pages":"262 - 268"},"PeriodicalIF":0.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145169821","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}

{"title":"Comparison of Electropulse Treatment and Annealing of a Nanostructured Alloy with Shape Memory","authors":"V. V. Stolyarov","doi":"10.1134/S1052618825700062","DOIUrl":"10.1134/S1052618825700062","url":null,"abstract":"<p>The influence of electropulse treatment modes on the structure, microhardness, and mechanical characteristics during the tensile testing of the nanostructured shape memory alloy Ti_49.3Ni_50.7, produced by electroplastic rolling, has been investigated. The optimal current density and exposure time, at which the grain size in the microstructure of the alloy remains in the nanometric range, the strength characteristics do not decrease, and the relative elongation to failure increases, have been determined. The possibility of replacing prolonged traditional furnace annealing with short-term electropulse treatment has been demonstrated.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"54 3","pages":"257 - 261"},"PeriodicalIF":0.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145169823","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}

{"title":"Mathematical Model of an Axial-Flow Compressor with Separation of Abrasive Particles","authors":"S. S. Popov,&nbsp;I. N. Kravchenko","doi":"10.1134/S1052618825700013","DOIUrl":"10.1134/S1052618825700013","url":null,"abstract":"<p>The issues of operation of axial-flow gas turbine engine compressors in aggressive climatic and geographical conditions and of the erosive wear characteristic of these conditions, leading to deterioration of the characteristics of the entire engine as a whole, are considered. The necessity of using a new method for preventing erosive wear of axial-flow compressors, based on the abrasive particle separation, is substantiated. A mathematical model of an axial-flow compressor with abrasive particles separation is developed based on the basic Navier–Stokes equations used in computational fluid dynamics with the <i>k</i>–ω SST turbulence model (Menter model), supplemented by a discrete-phase motion model. The results of modeling the main gas-dynamic characteristics of an axial-flow compressor with separation of abrasive particles are presented, making it possible to determine the effect of this separation on the characteristics of axial-flow compressors.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"54 3","pages":"269 - 279"},"PeriodicalIF":0.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145169824","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}