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A Computational-and-Experimental Model for Assessing Acoustic Pressure Parameters under a Composite Head Fairing 复合封头整流罩声压参数计算与实验模型研究
IF 0.3
Journal of Machinery Manufacture and Reliability Pub Date : 2026-08-15 DOI: 10.1134/S1052618826700226
P. A. Popov
{"title":"A Computational-and-Experimental Model for Assessing Acoustic Pressure Parameters under a Composite Head Fairing","authors":"P. A. Popov","doi":"10.1134/S1052618826700226","DOIUrl":"10.1134/S1052618826700226","url":null,"abstract":"<p>A computational and experimental model for soundproofing and dynamics of a cylindrical shell is proposed. This model makes it possible to estimate the acoustic pressure inside a composite compartment according to known external acoustic pressure and radial vibration acceleration values. The model has been tested on a currently operating composite head fairing, where measurements of these parameters have been conducted. This has made it possible to estimate the acoustic pressure on the inner side of its shell and to achieve values comparable with the acoustic pressure measurements obtained in the payload region.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"55 4","pages":"416 - 426"},"PeriodicalIF":0.3,"publicationDate":"2026-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752242","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
Justification of Material-Processing Parameters That Ensure Permissible Limits for the Formation of Structural Defects 确定材料加工参数以确保结构缺陷形成的允许限度
IF 0.3
Journal of Machinery Manufacture and Reliability Pub Date : 2026-08-15 DOI: 10.1134/S1052618826700238
A. V. Ragutkin, I. N. Kravchenko, M. E. Stavrovsky, I. M. Sidorov, E. S. Postnikova
{"title":"Justification of Material-Processing Parameters That Ensure Permissible Limits for the Formation of Structural Defects","authors":"A. V. Ragutkin,&nbsp;I. N. Kravchenko,&nbsp;M. E. Stavrovsky,&nbsp;I. M. Sidorov,&nbsp;E. S. Postnikova","doi":"10.1134/S1052618826700238","DOIUrl":"10.1134/S1052618826700238","url":null,"abstract":"<p>The article pays special attention to the issues of strength of materials, resistance to destruction, and reliability of their functioning under special operating conditions. The mechanical properties during the production of blanks, fatigue, and dynamic loading, as well as wear resistance as a relationship between the properties of materials and strengthening technologies, are studied. The problems of fracture mechanics and issues of resource assessment of industrial materials are considered.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"55 4","pages":"326 - 332"},"PeriodicalIF":0.3,"publicationDate":"2026-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752090","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
Modeling Residual Stresses Arising during Hybrid Shot and Laser Shock Peening of Ti–6Al–4V Titanium Alloy Ti-6Al-4V钛合金混合喷丸和激光冲击强化残余应力建模
IF 0.3
Journal of Machinery Manufacture and Reliability Pub Date : 2026-08-15 DOI: 10.1134/S1052618826700214
G. Zh. Sakhvadze
{"title":"Modeling Residual Stresses Arising during Hybrid Shot and Laser Shock Peening of Ti–6Al–4V Titanium Alloy","authors":"G. Zh. Sakhvadze","doi":"10.1134/S1052618826700214","DOIUrl":"10.1134/S1052618826700214","url":null,"abstract":"<p>A hybrid surface treatment, combining shot and laser shock peening, can produce high compressive residual stresses in the near-surface region. This article develops a finite element model to study the hybrid surface hardening technology for Ti–6Al–4V biomedical titanium alloy and its effect on residual stresses. A comparison of the finite element modeling results with known experimental data is provided, demonstrating good agreement. It is shown that, compared to using either technology alone, the hybrid technology can increase the maximum depth and magnitude of compressive residual stresses by 1060 µm and 50–80 MPa, respectively.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"55 4","pages":"350 - 357"},"PeriodicalIF":0.3,"publicationDate":"2026-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752052","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
Effect of Pressure Pulsations on the Vibration Isolating Properties of Fluid Filled Pipeline Compensators and Possibilities for Their Reduction by Pressure Pulsation Dampers of Various Designs 压力脉动对充液管道补偿器隔振性能的影响及采用不同设计的压力脉动阻尼器减小压力脉动的可能性
IF 0.3
Journal of Machinery Manufacture and Reliability Pub Date : 2026-08-15 DOI: 10.1134/S1052618826700172
A. V. Kiryukhin, L. E. Ukrainskii, O. R. Ganiev, O. O. Mil’man, L. N. Serezhkin, E. A. Loshkareva
{"title":"Effect of Pressure Pulsations on the Vibration Isolating Properties of Fluid Filled Pipeline Compensators and Possibilities for Their Reduction by Pressure Pulsation Dampers of Various Designs","authors":"A. V. Kiryukhin,&nbsp;L. E. Ukrainskii,&nbsp;O. R. Ganiev,&nbsp;O. O. Mil’man,&nbsp;L. N. Serezhkin,&nbsp;E. A. Loshkareva","doi":"10.1134/S1052618826700172","DOIUrl":"10.1134/S1052618826700172","url":null,"abstract":"<p>Vibration isolating compensators of various designs are used to reduce vibrations in power‑plant piping. Their efficiency can be significantly reduced by pressure pulsations of the working fluid arising from various sources. Pressure pulsations can be mitigated by different types of pulsation dampers. Results are presented for pulsation reduction obtained by the combined use of a broadband damper based on spherical air cavities located outside the main pipe cross‑section and a Helmholtz resonator. Tuning the Helmholtz resonator to the frequency at which the spherical damper exhibits negative efficiency reduces the amplitude of the low‑frequency resonance by two orders of magnitude and widens the frequency range over which pulsations are efficiently attenuated. The design of a test rig is described for investigating the influence of the placement of high‑efficiency broadband pulsation dampers on vibration levels, pressure pulsations, and dynamic forces in a three‑dimensional pipeline system with a pump and working‑fluid flow, including placement of the dampers inside compensators.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"55 4","pages":"317 - 325"},"PeriodicalIF":0.3,"publicationDate":"2026-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752120","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
Assessment of and Algorithm for the Clustering Quality of Technological Solutions Using the Hamming Distance and Their Structure 基于汉明距离及其结构的技术方案聚类质量评价与算法
IF 0.3
Journal of Machinery Manufacture and Reliability Pub Date : 2026-08-15 DOI: 10.1134/S1052618826700263
D. L. Rakov
{"title":"Assessment of and Algorithm for the Clustering Quality of Technological Solutions Using the Hamming Distance and Their Structure","authors":"D. L. Rakov","doi":"10.1134/S1052618826700263","DOIUrl":"10.1134/S1052618826700263","url":null,"abstract":"<p>In modern conditions, when designing and optimizing complex technical systems in the field of mechanical engineering, developers analyze a variety of alternative technical and technological solutions synthesized within the framework of the technical specifications. The number of potential technological solutions may include thousands or more potential options that require clustering (grouping) for subsequent analysis and selection; accordingly, clustering, as a way of reducing the number of options under consideration, is a key component for solving this problem. However, the efficiency of clustering directly depends on the chosen metric between objects and the method for assessing the quality of the resulting clusters. In the context of technical systems, where decisions are often encoded as binary or discrete vectors (presence or absence of a component, choice of node type, etc.), such classical metrics as Euclidean distance may not be informative enough. The article discusses the application of the inverse Hamming distance to assess the quality of clustering of alternative technological solutions, which allows moving from formal clustering to a structural-content model.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"55 4","pages":"382 - 388"},"PeriodicalIF":0.3,"publicationDate":"2026-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752054","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
Movement Model of a Three-Wheeled Mobile Robot 三轮移动机器人的运动模型
IF 0.3
Journal of Machinery Manufacture and Reliability Pub Date : 2026-08-15 DOI: 10.1134/S1052618826700251
D. N. Kuchev, E. Kh. Gumarov, I. S. Pishchalnikov, A. O. Alekseev, E. R. Moshev, A. V. Smolyanov, I. N. Gaganova
{"title":"Movement Model of a Three-Wheeled Mobile Robot","authors":"D. N. Kuchev,&nbsp;E. Kh. Gumarov,&nbsp;I. S. Pishchalnikov,&nbsp;A. O. Alekseev,&nbsp;E. R. Moshev,&nbsp;A. V. Smolyanov,&nbsp;I. N. Gaganova","doi":"10.1134/S1052618826700251","DOIUrl":"10.1134/S1052618826700251","url":null,"abstract":"<p>The article considers the problem of increasing the efficiency of diagnostics of metal structures in the oil and gas complex using mobile robotic systems. A design of a three-wheeled mobile robot on magnetic wheels is proposed, intended for movement along metal surfaces of tank equipment and for carrying out nondestructive testing. A model of robot motion has been developed that allows one to determine the trajectory radius, speed, and traction force of the drive wheels. A simulation of the traction characteristics when moving on an inclined surface was conducted, demonstrating the possibility of stable movement of the robot on surfaces with a large angle of inclination.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"55 4","pages":"403 - 409"},"PeriodicalIF":0.3,"publicationDate":"2026-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752056","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 Heat Transfer in the Flow Passage of an Oil-Free Screw Vacuum Pump with Variable Pitch Rotors 无油螺杆泵变螺距转子流道传热研究
IF 0.3
Journal of Machinery Manufacture and Reliability Pub Date : 2026-08-15 DOI: 10.1134/S1052618826700160
A. A. Laskin, A. E. Kapustin, A. A. Raikov, S. I. Salikeev, A. V. Burmistrov
{"title":"Study of Heat Transfer in the Flow Passage of an Oil-Free Screw Vacuum Pump with Variable Pitch Rotors","authors":"A. A. Laskin,&nbsp;A. E. Kapustin,&nbsp;A. A. Raikov,&nbsp;S. I. Salikeev,&nbsp;A. V. Burmistrov","doi":"10.1134/S1052618826700160","DOIUrl":"10.1134/S1052618826700160","url":null,"abstract":"<p>The article presents a comprehensive study of heat transfer in the flow path of oil-free screw vacuum pumps with variable rotor pitch. A calculation method is proposed that combines mathematical modeling of the work process using the chamber method with finite element analysis. A distinctive feature of the approach is the use of an iterative algorithm that takes into account the mutual influence of the temperatures of the rotor and the gas in the working cavity. An assessment of the adequacy of the model using the SVP-650 pump as an example showed a discrepancy with experimental data of no more than 4%. Based on the thermal calculation, a deformation analysis was performed to determine under what conditions, for given clearances, rotor seizure may occur.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"55 4","pages":"410 - 415"},"PeriodicalIF":0.3,"publicationDate":"2026-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752057","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 Modification of Plastic Greases by the Incorporation of Nickel and Tungsten Disulfide Nanoparticles 二硫化镍钨纳米颗粒改性塑料润滑脂的研究
IF 0.3
Journal of Machinery Manufacture and Reliability Pub Date : 2026-08-15 DOI: 10.1134/S1052618826700147
I. D. Kolesnikov, A. K. Anoprienko
{"title":"Study of Modification of Plastic Greases by the Incorporation of Nickel and Tungsten Disulfide Nanoparticles","authors":"I. D. Kolesnikov,&nbsp;A. K. Anoprienko","doi":"10.1134/S1052618826700147","DOIUrl":"10.1134/S1052618826700147","url":null,"abstract":"<p>Litol-24 lubricating grease is one of the most widely used greases in the Commonwealth of Independent States. It has good tribological properties that are insufficient for the operation of road construction machine joints under severe conditions. Therefore, Litol-24 grease is being modernized by the incorporation of nanoparticles into its composition. This work examines the effect of modifiers of Litol-24 grease, such as nickel particles (at concentrations of 0.1, 0.5, and 1.0% of grease weight) and tungsten disulfide particles (at concentrations of 1, 2, and 3% of grease weight), on the changes in tribological characteristics such as wear scar size and change in the friction pair element mass.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"55 4","pages":"377 - 381"},"PeriodicalIF":0.3,"publicationDate":"2026-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752058","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
Development of the Fundamentals of Engineering Calculation of a Multisector Tool for Calibration by Compression of Thin-Walled Cylindrical Pipes 薄壁圆柱管压缩校准多扇形工具工程计算基础的发展
IF 0.3
Journal of Machinery Manufacture and Reliability Pub Date : 2026-08-15 DOI: 10.1134/S1052618826700184
I. L. Bezlepkin, M. A. Vasechkin, O. Yu. Davydov, V. G. Egorov
{"title":"Development of the Fundamentals of Engineering Calculation of a Multisector Tool for Calibration by Compression of Thin-Walled Cylindrical Pipes","authors":"I. L. Bezlepkin,&nbsp;M. A. Vasechkin,&nbsp;O. Yu. Davydov,&nbsp;V. G. Egorov","doi":"10.1134/S1052618826700184","DOIUrl":"10.1134/S1052618826700184","url":null,"abstract":"<p>This article focuses on the development of an engineering calculation methodology for a multisector crimping tool used for calibrating the ends of thin-walled cylindrical pipes and fittings. The objective of the study is to establish analytical relationships between the geometric parameters of the crimping die and the force characteristics necessary for designing equipment for calibrating thin-walled pipes by crimping, ensuring the required accuracy and quality when preparing circumferential joints of pipes and fittings for automatic welding. Calculation formulas are proposed for determining the specific force required to compress a multisector die by a given amount of radial displacement of its sectors and for estimating the resulting bending stress. The resulting relationships enable optimization of tool design for calibrating pipes of various diameters.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"55 4","pages":"389 - 395"},"PeriodicalIF":0.3,"publicationDate":"2026-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752239","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
Development of a Design of a Mobile Robotic Complex for Extinguishing Oil Fires in Tank Parts 一种用于油罐零件灭火的移动机器人综合体的设计开发
IF 0.3
Journal of Machinery Manufacture and Reliability Pub Date : 2026-08-15 DOI: 10.1134/S1052618826700135
V. V. Kiselev, A. V. Toporov, V. E. Ivanov, P. O. Mikhailin
{"title":"Development of a Design of a Mobile Robotic Complex for Extinguishing Oil Fires in Tank Parts","authors":"V. V. Kiselev,&nbsp;A. V. Toporov,&nbsp;V. E. Ivanov,&nbsp;P. O. Mikhailin","doi":"10.1134/S1052618826700135","DOIUrl":"10.1134/S1052618826700135","url":null,"abstract":"<p>This article examines the existing types of mobile robotics used to carry out work to eliminate man-made accidents and extinguish fires at oil and petroleum product storage facilities associated with the risk of death, injury, and poisoning of firefighters and to conduct fire reconnaissance and deliver fire-extinguishing agents to the source of the fire in areas of elevated temperatures and other damaging hazardous and harmful factors. The main shortcomings of existing fire-fighting robotic systems have been identified. A new design of a mobile robotic complex equipped with a reel with fire hoses for laying main hose lines at a distance ensuring the safe location of firefighters is proposed and described. A three-dimensional model of the designed robotic complex is presented; its main tactical and technical characteristics and the results of the calculations are given.</p>","PeriodicalId":642,"journal":{"name":"Journal of Machinery Manufacture and Reliability","volume":"55 4","pages":"396 - 402"},"PeriodicalIF":0.3,"publicationDate":"2026-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752055","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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