Pub Date : 2024-04-12DOI: 10.30987/2782-5957-2024-4-45-56
Pavel Kharchenko
The paper solves the problems of assessing the smooth running of a passenger train, the quality and comfort of passenger transportation by rail, as well as determining the level of professional competencies of locomotive crew members. A comprehensive computer model of a passenger train is developed, which makes it possible to study all the processes of controlling traction equipment and train brakes that affect energy efficiency, safety and dynamics of rolling stock. Using fuzzy logic tools, a technique is developed for rating employees of locomotive crews according to the criterion of ensuring smooth running of the train. The results of experimental trips by passenger trains on sections of the North Caucasus Railway are presented. The dependences of the locomotive traction force, the speed and the longitudinal jerk of the passenger train cars are obtained.
{"title":"TECHNIQUE TO ASSESS THE COMFORT OF PASSENGER TRANSPORTATION BY RAIL TO MINIMIZE THE RISKS ASSOCIATED WITH THE HUMAN FACTOR WHEN RUNNING A TRAIN","authors":"Pavel Kharchenko","doi":"10.30987/2782-5957-2024-4-45-56","DOIUrl":"https://doi.org/10.30987/2782-5957-2024-4-45-56","url":null,"abstract":"The paper solves the problems of assessing the smooth running of a passenger train, the quality and comfort of passenger transportation by rail, as well as determining the level of professional competencies of locomotive crew members. A comprehensive computer model of a passenger train is developed, which makes it possible to study all the processes of controlling traction equipment and train brakes that affect energy efficiency, safety and dynamics of rolling stock. Using fuzzy logic tools, a technique is developed for rating employees of locomotive crews according to the criterion of ensuring smooth running of the train. The results of experimental trips by passenger trains on sections of the North Caucasus Railway are presented. The dependences of the locomotive traction force, the speed and the longitudinal jerk of the passenger train cars are obtained.","PeriodicalId":289189,"journal":{"name":"Transport engineering","volume":"79 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140710987","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 : 2024-04-12DOI: 10.30987/2782-5957-2024-4-4-12
S. Steposhina
The study objective is to assess the influence of the approximation method on the accuracy of the regression model. The task is to increase the accuracy of regression models using polynomial approximation methods. Research methods: the least square method, the polynomial approximation method. The novelty of the work: dependencies for the regression analysis of a multifactor experiment using polynomial approximation is developed, the influence of the approximation method on the accuracy of the regression model is analyzed. The study results: as a result of applying the developed dependencies, the accuracy of single-factor regression equations increased by 2.4 times, two-factor equations - by 1.7 times. Conclusions: the use of polynomial approximation makes it possible to increase the accuracy of single-factor and multifactor regression models, which increases their adequacy, the significance of coefficients and expands the possibilities of their application.
{"title":"IMPROVING THE ACCURACY OF REGRESSION MODELS BY METHODS OF POLYNOMIAL APPROXIMATION","authors":"S. Steposhina","doi":"10.30987/2782-5957-2024-4-4-12","DOIUrl":"https://doi.org/10.30987/2782-5957-2024-4-4-12","url":null,"abstract":"The study objective is to assess the influence of the approximation method on the accuracy of the regression model. \u0000The task is to increase the accuracy of regression models using polynomial approximation methods. \u0000Research methods: the least square method, the polynomial approximation method. \u0000The novelty of the work: dependencies for the regression analysis of a multifactor experiment using polynomial approximation is developed, the influence of the approximation method on the accuracy of the regression model is analyzed. \u0000The study results: as a result of applying the developed dependencies, the accuracy of single-factor regression equations increased by 2.4 times, two-factor equations - by 1.7 times. \u0000Conclusions: the use of polynomial approximation makes it possible to increase the accuracy of single-factor and multifactor regression models, which increases their adequacy, the significance of coefficients and expands the possibilities of their application.","PeriodicalId":289189,"journal":{"name":"Transport engineering","volume":"11 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140712340","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 : 2024-04-12DOI: 10.30987/2782-5957-2024-4-13-25
A. Pugachev, V. Vorob'ev, O. Izmerov, E. Nikolaev
The problem of finding criteria for choosing between axial support and frame support drives for locomotives in the conditions of import substitution is considered. The changes in the criteria for choosing a traction drive design depending on the changes in requirements for locomotives are analyzed. The types of drives are compared according to their technological simplicity, weight and size indicators, the effect on the coupling properties of the locomotive and the damage to the track structure, taking into account the production of new traction drive designs of an integrated type with collector-free traction electric motors having an increased rotation frequency. It was found that for locomotives with collector traction motors, it is advisable to use a frame support drive with an axial gearbox or a hollow driveshaft, and when using collector-free traction motors , the axial support traction drive of an integrated layout on freight locomotives with 1250 mm wheel diameter to improve coupling properties by 12...15%, it is advisable to replace it with the one proposed by the authors, which is an aggregate-type drive with an elastic link in the shaft lines, or with frame support drives with an axial gearbox, and with a wheel diameter of 1050 mm – frame support drives with a hollow shaft on the axis. An application for a patent has been submitted for the proposed solutions.
{"title":"COMPARISON OF TRACTION DRIVES WITH AXIAL SUPPORT AND FRAME SUPPORT SUSPENSION OF THE ENGINE","authors":"A. Pugachev, V. Vorob'ev, O. Izmerov, E. Nikolaev","doi":"10.30987/2782-5957-2024-4-13-25","DOIUrl":"https://doi.org/10.30987/2782-5957-2024-4-13-25","url":null,"abstract":"The problem of finding criteria for choosing between axial support and frame support drives for locomotives in the conditions of import substitution is considered. The changes in the criteria for choosing a traction drive design depending on the changes in requirements for locomotives are analyzed. The types of drives are compared according to their technological simplicity, weight and size indicators, the effect on the coupling properties of the locomotive and the damage to the track structure, taking into account the production of new traction drive designs of an integrated type with collector-free traction electric motors having an increased rotation frequency. It was found that for locomotives with collector traction motors, it is advisable to use a frame support drive with an axial gearbox or a hollow driveshaft, and when using collector-free traction motors , the axial support traction drive of an integrated layout on freight locomotives with 1250 mm wheel diameter to improve coupling properties by 12...15%, it is advisable to replace it with the one proposed by the authors, which is an aggregate-type drive with an elastic link in the shaft lines, or with frame support drives with an axial gearbox, and with a wheel diameter of 1050 mm – frame support drives with a hollow shaft on the axis. An application for a patent has been submitted for the proposed solutions.","PeriodicalId":289189,"journal":{"name":"Transport engineering","volume":"8 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140710379","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 : 2024-04-12DOI: 10.30987/2782-5957-2024-4-26-33
D. Antipin, S. Ashurkova, Denis Bondarenko, Marina Manueva
The lining stability of the side walls and roof of the passenger car body is assessed during repair work related to its asymmetric lifting with a jack at one end of the body. Using mathematical modeling, the lifting height is determined which is necessary to ensure the possibility to dismantle the springs of the spring set of the central suspension. The stability of the reinforced lining of the car body was assessed using the developed problem-oriented elastic-dissipative finite element model of the supporting structure of the passenger car body. The calculations are performed in a static non-linear formulation, taking into account the geometric nonlinearity and non-conservativeness of the operating loads. The stability of the reinforced load-bearing lining of the car was assessed both for the initial structure and for a structure with geometric imperfections such as technological loss. The analysis of the research results allows to conclude that during the technological operation associated with lifting the passenger car body with a jack under one support, it can lead to a loss of stability of the sill belt lining of the side wall and the smooth sheathing of the roof slope. The results obtained agree with the results of the inspection of full-scale cars in operation.
{"title":"RATING OF THE LINING STABILITY OF PASSENGER CAR BODY SIDE WALLS AND THE ROOF WHEN PERFORMING REPAIR WORK","authors":"D. Antipin, S. Ashurkova, Denis Bondarenko, Marina Manueva","doi":"10.30987/2782-5957-2024-4-26-33","DOIUrl":"https://doi.org/10.30987/2782-5957-2024-4-26-33","url":null,"abstract":"The lining stability of the side walls and roof of the passenger car body is assessed during repair work related to its asymmetric lifting with a jack at one end of the body. Using mathematical modeling, the lifting height is determined which is necessary to ensure the possibility to dismantle the springs of the spring set of the central suspension. The stability of the reinforced lining of the car body was assessed using the developed problem-oriented elastic-dissipative finite element model of the supporting structure of the passenger car body. The calculations are performed in a static non-linear formulation, taking into account the geometric nonlinearity and non-conservativeness of the operating loads. The stability of the reinforced load-bearing lining of the car was assessed both for the initial structure and for a structure with geometric imperfections such as technological loss. The analysis of the research results allows to conclude that during the technological operation associated with lifting the passenger car body with a jack under one support, it can lead to a loss of stability of the sill belt lining of the side wall and the smooth sheathing of the roof slope. The results obtained agree with the results of the inspection of full-scale cars in operation.","PeriodicalId":289189,"journal":{"name":"Transport engineering","volume":"25 62","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140711449","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 : 2023-12-14DOI: 10.30987/2782-5957-2023-12-42-49
Semyon Pilyugin, Aleksey Abramov, Vladimir Zhernakov, Denis Tyulenev, Andrey Sholom
A method is proposed to give a comprehensive assessment of the effectiveness of liquid coolants (LC), including tribo-engineering, physicochemical and cooling properties. The results of introducing LCs at military-industrial enterprises are presented. The work results on the import substitution of LCs at military-industrial enterprises are shown. The results of comparative tests of imported lubricants in comparison with domestic coolant Rosoil are presented. It is shown that Rosoil LC is not worse than imported analogues in terms of basic operational characteristics.
{"title":"IMPORT SUBSTITUTION OF LIQUID COOLANTS FOR METALWORKING PROCESSES AT MACHINE-BUILDING ENTERPRISES","authors":"Semyon Pilyugin, Aleksey Abramov, Vladimir Zhernakov, Denis Tyulenev, Andrey Sholom","doi":"10.30987/2782-5957-2023-12-42-49","DOIUrl":"https://doi.org/10.30987/2782-5957-2023-12-42-49","url":null,"abstract":"A method is proposed to give a comprehensive assessment of the effectiveness of liquid coolants (LC), including tribo-engineering, physicochemical and cooling properties. The results of introducing LCs at military-industrial enterprises are presented. The work results on the import substitution of LCs at military-industrial enterprises are shown. The results of comparative tests of imported lubricants in comparison with domestic coolant Rosoil are presented. It is shown that Rosoil LC is not worse than imported analogues in terms of basic operational characteristics.","PeriodicalId":289189,"journal":{"name":"Transport engineering","volume":"45 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138974836","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 : 2023-12-14DOI: 10.30987/2782-5957-2023-12-71-81
V. Sholom, Aleksandr Kazakov, Margarita Pshenichnaya, Olga Morozova
The paper contains an overview of Rosoil rust-preventive, protective and operating lubricants for metallurgy, mechanical engineering and other industries, including for military-industrial enterprises, as well as for the needs of the Ministry of Defense of the Russian Federation and the population. The main physicochemical and operational characteristics of rust-preventive, protective and operating lubricants are given such as rust-preventive greases for corrosion protection of ferrous and non-ferrous metal products during storage and transportation; protective grease lubricants for anticorrosive and mechanical processing of metals; protective antifriction greases for lubrication when manufacturing and operationing steel ropes made of uncoated wire and galvanized wire; universal lubricants for multi-purpose applications; corrosion-preventing oil for protection of military equipment; gun oils for cleaning, lubrication and corrosion protection of artillery and small arms during storage and operation; corrosion inhibitors to improve the protective properties of lubricating oils for various purposes and fuels. It is shown that the range of Rosoil rust-preventive, protective and operating lubricants contains 19 products, most of which are designed to replace imported materials and surpass them in protective properties and tribo-engineering characteristics.
{"title":"ROSOIL RUST-PREVETING, PROTECTIVE AND OPERATING LUBRICANTS","authors":"V. Sholom, Aleksandr Kazakov, Margarita Pshenichnaya, Olga Morozova","doi":"10.30987/2782-5957-2023-12-71-81","DOIUrl":"https://doi.org/10.30987/2782-5957-2023-12-71-81","url":null,"abstract":"The paper contains an overview of Rosoil rust-preventive, protective and operating lubricants for metallurgy, mechanical engineering and other industries, including for military-industrial enterprises, as well as for the needs of the Ministry of Defense of the Russian Federation and the population. The main physicochemical and operational characteristics of rust-preventive, protective and operating lubricants are given such as rust-preventive greases for corrosion protection of ferrous and non-ferrous metal products during storage and transportation; protective grease lubricants for anticorrosive and mechanical processing of metals; protective antifriction greases for lubrication when manufacturing and operationing steel ropes made of uncoated wire and galvanized wire; universal lubricants for multi-purpose applications; corrosion-preventing oil for protection of military equipment; gun oils for cleaning, lubrication and corrosion protection of artillery and small arms during storage and operation; corrosion inhibitors to improve the protective properties of lubricating oils for various purposes and fuels. It is shown that the range of Rosoil rust-preventive, protective and operating lubricants contains 19 products, most of which are designed to replace imported materials and surpass them in protective properties and tribo-engineering characteristics.","PeriodicalId":289189,"journal":{"name":"Transport engineering","volume":"34 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139003084","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 : 2023-12-14DOI: 10.30987/2782-5957-2023-12-56-62
Denis Tyulenev, Olga Kornilova, Semyon Pilyugin, Andrey Sholom, Aleksey Abramov
The paper objective is to test the developed lubricoolants of domestic production for broaching operations instead of imported analogues. The results of comparative laboratory tests of new technological lubricoolants Rosoil-V9 and Rosoil-423M for broaching operations, which are analogues of imported coolant, are presented. Laboratory tests are carried out in the Laboratory for Testing Technological Lubricants of Self-supporting Creative Center of Ufa Aviation Institute. Tribo-engineering properties are determined on a four-ball friction machine according to GOST 9490-75; cooling characteristics are determined on UZS-2 installation. The physicochemical properties are evaluated by standard test methods. As a result of the conducted research, it is found out that the physicochemical properties of Rosoil lubricoolants are similar to imported ones, and in terms of tribo-engineering and cooling characteristics, Rosoil lubricoolants are better than imported analogues.
{"title":"OIL LUBRICOOLANTS FOR BROACHING OPERATIONS WITH IMPROVED TRIBO-ENGINEERING AND COOLING CHARACTERISTICS","authors":"Denis Tyulenev, Olga Kornilova, Semyon Pilyugin, Andrey Sholom, Aleksey Abramov","doi":"10.30987/2782-5957-2023-12-56-62","DOIUrl":"https://doi.org/10.30987/2782-5957-2023-12-56-62","url":null,"abstract":"The paper objective is to test the developed lubricoolants of domestic production for broaching operations instead of imported analogues. The results of comparative laboratory tests of new technological lubricoolants Rosoil-V9 and Rosoil-423M for broaching operations, which are analogues of imported coolant, are presented. Laboratory tests are carried out in the Laboratory for Testing Technological Lubricants of Self-supporting Creative Center of Ufa Aviation Institute. Tribo-engineering properties are determined on a four-ball friction machine according to GOST 9490-75; cooling characteristics are determined on UZS-2 installation. The physicochemical properties are evaluated by standard test methods. As a result of the conducted research, it is found out that the physicochemical properties of Rosoil lubricoolants are similar to imported ones, and in terms of tribo-engineering and cooling characteristics, Rosoil lubricoolants are better than imported analogues.","PeriodicalId":289189,"journal":{"name":"Transport engineering","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138971845","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 : 2023-12-14DOI: 10.30987/2782-5957-2023-12-50-55
Fanis Fazliakhmetov, Denis Tyulenev, Aleksey Abramov, V. Sholom, Yulia Fazliakhmetova
The paper objective is to develop new greases with increased load capacity, corrosion protection, which provide lower wear of friction units. The results of comparative laboratory tests of the physicochemical, tribo-engineering and anticorrosive properties of new Rosoil-LS-112 and Rosoil-LS-720 greases in comparison with Litol-24 grease manufactured according to GOST 21150 are presented. All tests to determine the tribo-engineering characteristics and physicochemical parameters of greases are carried out in the accredited Laboratory for Testing Technological Lubricants of Self-supporting Creative Center of Ufa Aviation Institute. As a result of the tests carried out, it is found that Rosoil-LS-112 grease surpasses Litol-24 in tribo-engineering properties determined on a four-ball friction machine. Rosoil-LS-720 grease, in relation to Litol-24 and Rosoil-LS-112 greases, has a bette protective ability in salt fog.
{"title":"NEW LITHIUM GREASES WITH IMPROVED TRIBO- ENGINEERING AND ANTICORROSIVE CHARACTERISTICS","authors":"Fanis Fazliakhmetov, Denis Tyulenev, Aleksey Abramov, V. Sholom, Yulia Fazliakhmetova","doi":"10.30987/2782-5957-2023-12-50-55","DOIUrl":"https://doi.org/10.30987/2782-5957-2023-12-50-55","url":null,"abstract":"The paper objective is to develop new greases with increased load capacity, corrosion protection, which provide lower wear of friction units. The results of comparative laboratory tests of the physicochemical, tribo-engineering and anticorrosive properties of new Rosoil-LS-112 and Rosoil-LS-720 greases in comparison with Litol-24 grease manufactured according to GOST 21150 are presented. All tests to determine the tribo-engineering characteristics and physicochemical parameters of greases are carried out in the accredited Laboratory for Testing Technological Lubricants of Self-supporting Creative Center of Ufa Aviation Institute. As a result of the tests carried out, it is found that Rosoil-LS-112 grease surpasses Litol-24 in tribo-engineering properties determined on a four-ball friction machine. Rosoil-LS-720 grease, in relation to Litol-24 and Rosoil-LS-112 greases, has a bette protective ability in salt fog.","PeriodicalId":289189,"journal":{"name":"Transport engineering","volume":"26 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138971117","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 : 2023-12-14DOI: 10.30987/2782-5957-2023-12-21-28
Kirill Abramov, Irina Aslanyan, Denis Tyulenev, Vladimir Zhernakov
The study objective is to evaluate the tribo-engineering properties of composite materials based on an aluminum matrix reinforced with steel or basalt in comparison with a material without reinforcement, and to develop a technology for obtaining such composite materials. Frames consisting of multidirectional fibers were used as reinforcing components: basalt wool (175-200 kg/m3 density); steel wool (4# class); melting temperatures of steel and basalt, which make up steel and basalt wool, are above 10000C, which makes it possible to pour aluminum without changing the aggregate state of reinforcing frames. The percentage of reinforcing components by weight is 4-5%. Deformable AB aluminum alloy was used as a matrix, which differs from the alloys of Al-Mg-Si system because of its higher level of tensile and yield strength. The composite materials under study were obtained by the liquid–phase method - casting according to melting models. Tribo-engineering properties were tested on a friction machine in the medium of Lukoil standard 10W40 SF/CC engine oil. To determine the anti-wear properties, tests were carried out for 1 hour, and to determine the antisize properties and the seizure load, tests were carried out with a constant increase in the load on the friction unit. The assessment of anti-wear and antisize properties was carried out by comparing the values of wear spots and seizure loads. It is found that the anti-wear properties increase by 76-85% when reinforcing samples with basalt wool and by 46-76% when reinforcing with steel wool in relation to an unreinforced sample. Antisize properties increase with basalt reinforcement by 23%, and decrease by 7% with steel reinforcement. Studies on assessing tribo-engineering properties of samples obtained by casting from AB aluminum alloy reinforced with basalt and steel have shown an improvement in anti-wear and antisize properties in relation to samples from AB alloy without reinforcement.
这项研究的目的是评估以钢或玄武岩加固的铝基体为基础的复合材料与无加固材料相比的三重工程特性，并开发获得此类复合材料的技术。由多向纤维组成的框架被用作增强成分：玄武岩棉（密度为 175-200 kg/m3）；钢丝棉（4#级）；组成钢丝棉和玄武岩棉的钢和玄武岩的熔化温度在 10000C 以上，这使得在不改变增强框架骨料状态的情况下浇注铝成为可能。强化成分的重量百分比为 4-5%。使用可变形 AB 铝合金作为基体，它不同于铝镁硅体系的合金，因为其抗拉强度和屈服强度更高。所研究的复合材料是通过液相法获得的--根据熔化模型进行铸造。在卢克石油公司标准 10W40 SF/CC 机油介质下，在摩擦机上测试了三重工程特性。为了确定抗磨损性能，测试持续了 1 小时；为了确定抗锈蚀性能和锈蚀负荷，测试在摩擦装置负荷不断增加的情况下进行。抗磨损和防卡咬性能的评估是通过比较磨损点和卡咬载荷的数值来进行的。结果发现，与未加固的样品相比，用玄武岩棉加固样品时，抗磨损性能提高了 76-85%，用钢丝棉加固时提高了 46-76%。采用玄武岩加固时，抗变形性能提高 23%，而采用钢加固时，抗变形性能降低 7%。对用玄武岩和钢加固的 AB 铝合金浇铸样品的三工程特性评估研究表明，与未加固的 AB 合金样品相比，抗磨损和抗咬合性能有所改善。
{"title":"STUDY OF TRIBO-ENGINEERING PROPERTIES OF COMPOSITE MATERIAL BASED ON AN ALUMINUM MATRIX REINFORCED WITH STEEL OR BASALT","authors":"Kirill Abramov, Irina Aslanyan, Denis Tyulenev, Vladimir Zhernakov","doi":"10.30987/2782-5957-2023-12-21-28","DOIUrl":"https://doi.org/10.30987/2782-5957-2023-12-21-28","url":null,"abstract":"The study objective is to evaluate the tribo-engineering properties of composite materials based on an aluminum matrix reinforced with steel or basalt in comparison with a material without reinforcement, and to develop a technology for obtaining such composite materials. Frames consisting of multidirectional fibers were used as reinforcing components: basalt wool (175-200 kg/m3 density); steel wool (4# class); melting temperatures of steel and basalt, which make up steel and basalt wool, are above 10000C, which makes it possible to pour aluminum without changing the aggregate state of reinforcing frames. The percentage of reinforcing components by weight is 4-5%. Deformable AB aluminum alloy was used as a matrix, which differs from the alloys of Al-Mg-Si system because of its higher level of tensile and yield strength. The composite materials under study were obtained by the liquid–phase method - casting according to melting models. Tribo-engineering properties were tested on a friction machine in the medium of Lukoil standard 10W40 SF/CC engine oil. To determine the anti-wear properties, tests were carried out for 1 hour, and to determine the antisize properties and the seizure load, tests were carried out with a constant increase in the load on the friction unit. The assessment of anti-wear and antisize properties was carried out by comparing the values of wear spots and seizure loads. It is found that the anti-wear properties increase by 76-85% when reinforcing samples with basalt wool and by 46-76% when reinforcing with steel wool in relation to an unreinforced sample. Antisize properties increase with basalt reinforcement by 23%, and decrease by 7% with steel reinforcement. Studies on assessing tribo-engineering properties of samples obtained by casting from AB aluminum alloy reinforced with basalt and steel have shown an improvement in anti-wear and antisize properties in relation to samples from AB alloy without reinforcement.","PeriodicalId":289189,"journal":{"name":"Transport engineering","volume":"22 5part1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138971495","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 : 2023-12-14DOI: 10.30987/2782-5957-2023-12-63-70
Andrey Sholom, Semyon Pilyugin, Aleksey Abramov, V. Sholom
The paper presents the results of studies aimed at defining the effect of the cooling properties of oil lubricants used in various metalworking processes. The design and a brief description of the installation are given, which allows to obtain temperature-time, temperature-velocity dependencies of various liquids. The use of this installation gives the opportunity to select lubricants according to its cooling properties, depending on the temperature range required by the process. The assessment results of lubricant cooling properties at UZS-2 installation, manufactured according to the requirements of international standards ISO 9950, ASTM D6200 - 01 and ASTM D6482 – 06 are presented. The dependences of tribo-engineering properties of the tested oil lubricants on their cooling characteristics are found out. It is shown that with an increase in the temperature at which the maximum cooling rate of the lubricant is provided, its extreme pressure and anti-wear properties determined according to GOST on a four-ball friction machine increase.
{"title":"COOLING AND TRIBO-ENGINEERING CHARACTERISTICS OF OIL LUBRICANTS","authors":"Andrey Sholom, Semyon Pilyugin, Aleksey Abramov, V. Sholom","doi":"10.30987/2782-5957-2023-12-63-70","DOIUrl":"https://doi.org/10.30987/2782-5957-2023-12-63-70","url":null,"abstract":"The paper presents the results of studies aimed at defining the effect of the cooling properties of oil lubricants used in various metalworking processes. The design and a brief description of the installation are given, which allows to obtain temperature-time, temperature-velocity dependencies of various liquids. The use of this installation gives the opportunity to select lubricants according to its cooling properties, depending on the temperature range required by the process. The assessment results of lubricant cooling properties at UZS-2 installation, manufactured according to the requirements of international standards ISO 9950, ASTM D6200 - 01 and ASTM D6482 – 06 are presented. The dependences of tribo-engineering properties of the tested oil lubricants on their cooling characteristics are found out. It is shown that with an increase in the temperature at which the maximum cooling rate of the lubricant is provided, its extreme pressure and anti-wear properties determined according to GOST on a four-ball friction machine increase.","PeriodicalId":289189,"journal":{"name":"Transport engineering","volume":"312 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138974179","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：