Pub Date : 2023-12-14DOI: 10.30987/2782-5957-2023-12-36-41
Olga Kornilova, V. Sholom, Denis Tyulenev, O. Kramer, Andrey Trofimov
The physicochemical and tribological parameters of the ash-free additives obtained in the laboratory are given. It is shown that they have high extreme pressure properties and low ash content. The results of comparative laboratory tests of tribo-engineering characteristics of new additives of Russian and foreign production are presented. It is found out that the new additives in terms of maximum load capacity are not worse than imported analogues and can be used to increase the extreme pressure properties of lubricants for various purposes (including ash-free ones) instead of their imported analogues. A pilot batch of additives containing 45% sulfur is prepared and tested.
{"title":"DEVELOPMENT OF ASH-FREE EXTREME PRESSURE ADDITIVES","authors":"Olga Kornilova, V. Sholom, Denis Tyulenev, O. Kramer, Andrey Trofimov","doi":"10.30987/2782-5957-2023-12-36-41","DOIUrl":"https://doi.org/10.30987/2782-5957-2023-12-36-41","url":null,"abstract":"The physicochemical and tribological parameters of the ash-free additives obtained in the laboratory are given. It is shown that they have high extreme pressure properties and low ash content. The results of comparative laboratory tests of tribo-engineering characteristics of new additives of Russian and foreign production are presented. It is found out that the new additives in terms of maximum load capacity are not worse than imported analogues and can be used to increase the extreme pressure properties of lubricants for various purposes (including ash-free ones) instead of their imported analogues. A pilot batch of additives containing 45% sulfur is prepared and tested.","PeriodicalId":289189,"journal":{"name":"Transport engineering","volume":"91 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138975525","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: 10.30987/2782-5957-2023-12-29-35
V. Golovin, V. Sholom, O. Kramer, Olga Kornilova, Aleksandr Golubkov, Svetlana Sarantseva
The paper objective is to find out the effect of various lubricants on the wear resistance of galvanized steel ropes manufactured according to GOST 2688-80 Two lay rope type LK-R construction 6 19(1 +6+6/6)+ 1 o. c. Dimensions. The research was carried out on a machine manufactured according to GOST 2387-80 Stell Ropes. Method of Endurahce testify under normal conditions, at negative temperatures and under periodic exposure to seawater. It is shown that many rope lubricants used by Russian metallurgical enterprises for impregnating galvanized steel ropes, when periodically exposured to seawater, reduce their wear resistance from 16 to 34% in relation to non-lubricated ropes. Only the universal rope lubricant Rosoil-K112 showed an increase in the wear resistance of galvanized steel rope by 23%. It was found that lubricants that maximize the wear resistance of galvanized steel rope during its operation in normal climatic conditions turned out to be completely ineffective at negative temperatures or when exposured by seawater. As a result of the work carried out, it was revealed that in order to increase the wear resistance of galvanized steel rope, additional studies are needed to investigate the interaction of galvanized coating and lubricating material under conditions of periodic exposure to seawater, as well as industrial tests of galvanized steel rope lubricated with universal rope lubricant Rosoil-K112.
{"title":"THE EFFECT OF LUBRICANTS ON THE WEAR RESISTANCE OF GALVANIZED STEEL ROPES, OPERATED AT NEGATIVE TEMPERATURES AND IN SEAWATER","authors":"V. Golovin, V. Sholom, O. Kramer, Olga Kornilova, Aleksandr Golubkov, Svetlana Sarantseva","doi":"10.30987/2782-5957-2023-12-29-35","DOIUrl":"https://doi.org/10.30987/2782-5957-2023-12-29-35","url":null,"abstract":"The paper objective is to find out the effect of various lubricants on the wear resistance of galvanized steel ropes manufactured according to GOST 2688-80 Two lay rope type LK-R construction 6 19(1 +6+6/6)+ 1 o. c. Dimensions. The research was carried out on a machine manufactured according to GOST 2387-80 Stell Ropes. Method of Endurahce testify under normal conditions, at negative temperatures and under periodic exposure to seawater. It is shown that many rope lubricants used by Russian metallurgical enterprises for impregnating galvanized steel ropes, when periodically exposured to seawater, reduce their wear resistance from 16 to 34% in relation to non-lubricated ropes. Only the universal rope lubricant Rosoil-K112 showed an increase in the wear resistance of galvanized steel rope by 23%. It was found that lubricants that maximize the wear resistance of galvanized steel rope during its operation in normal climatic conditions turned out to be completely ineffective at negative temperatures or when exposured by seawater. As a result of the work carried out, it was revealed that in order to increase the wear resistance of galvanized steel rope, additional studies are needed to investigate the interaction of galvanized coating and lubricating material under conditions of periodic exposure to seawater, as well as industrial tests of galvanized steel rope lubricated with universal rope lubricant Rosoil-K112.","PeriodicalId":289189,"journal":{"name":"Transport engineering","volume":"1 1‐2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138971101","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: 10.30987/2782-5957-2023-12-82-89
V. Sholom, Aleksandr Kazakov, Denis Tyulenev, Olga Morozova, Margarita Pshenichnaya
The paper contains the results of laboratory tests of a new Rosoil-Akor anticorrosive additive, designed to improve the protective properties of oils for various purposes and fuels in comparison with the similar AKOR-1 additive from two Russian manufacturers. The physicochemical characteristics of the additives are defined. The effect of additives on the protective and anti-wear properties of transformer oils, motor oils and diesel fuel are studied. It is shown that the physico-chemical parameters of Rosoil-Akor additive meets the requirements of GOST 15171-78 Additive AKOP-I. Specifications. It is found that when exposed to salt fog, the protective ability of oils and diesel fuel with Rosoil-Akor additive is 3-10 times higher than with AKOR-1 additives. At higher values of relative humidity and air temperature, the protective ability of oils and diesel fuel with Rosoil-Akor additive is up to 25 times better than with AKOR-1 additives. All the additives under study increase the anti-wear properties of transformer oils, while the diameter of the wear spot of oil with Rosoil-Akor additive is 1.2-1.4 times smaller than oils with AKOR-1 additives. The addition of the studied additives to engine oils does not significantly affect the anti-wear properties of oils. The wear index of diesel fuel decreases with the addition of Rosoil-Akor and AKOR-1 additives (sample No. 1), but increases with the addition of AKOR-1 additive (sample No. 2). Test results show that the new Rosoil-Akor additive has high anticorrosive and anti-wear properties and can be used to improve the protective properties of oils for various purposes and diesel fuel instead of AKOR-1 additive.
{"title":"NEW ROSOIL-AKOR ANTI-CORROSION ADDITIVE","authors":"V. Sholom, Aleksandr Kazakov, Denis Tyulenev, Olga Morozova, Margarita Pshenichnaya","doi":"10.30987/2782-5957-2023-12-82-89","DOIUrl":"https://doi.org/10.30987/2782-5957-2023-12-82-89","url":null,"abstract":"The paper contains the results of laboratory tests of a new Rosoil-Akor anticorrosive additive, designed to improve the protective properties of oils for various purposes and fuels in comparison with the similar AKOR-1 additive from two Russian manufacturers. The physicochemical characteristics of the additives are defined. The effect of additives on the protective and anti-wear properties of transformer oils, motor oils and diesel fuel are studied. It is shown that the physico-chemical parameters of Rosoil-Akor additive meets the requirements of GOST 15171-78 Additive AKOP-I. Specifications. It is found that when exposed to salt fog, the protective ability of oils and diesel fuel with Rosoil-Akor additive is 3-10 times higher than with AKOR-1 additives. At higher values of relative humidity and air temperature, the protective ability of oils and diesel fuel with Rosoil-Akor additive is up to 25 times better than with AKOR-1 additives. All the additives under study increase the anti-wear properties of transformer oils, while the diameter of the wear spot of oil with Rosoil-Akor additive is 1.2-1.4 times smaller than oils with AKOR-1 additives. The addition of the studied additives to engine oils does not significantly affect the anti-wear properties of oils. The wear index of diesel fuel decreases with the addition of Rosoil-Akor and AKOR-1 additives (sample No. 1), but increases with the addition of AKOR-1 additive (sample No. 2). Test results show that the new Rosoil-Akor additive has high anticorrosive and anti-wear properties and can be used to improve the protective properties of oils for various purposes and diesel fuel instead of AKOR-1 additive.","PeriodicalId":289189,"journal":{"name":"Transport engineering","volume":"20 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138974935","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: 10.30987/2782-5957-2023-12-4-10
Lesya Sukharevskaya
The main points of developing self-supporting creative center of Ufa Aviation Institute - the management company of the industrial park HTTS UAI – ROSOIL are described. The main types of its activities are shown.
{"title":"SELF-SUPPORTING CREATIVE CENTER OF UFA AVIATION INSTITUTE - 35th ANNIVERSARY","authors":"Lesya Sukharevskaya","doi":"10.30987/2782-5957-2023-12-4-10","DOIUrl":"https://doi.org/10.30987/2782-5957-2023-12-4-10","url":null,"abstract":"The main points of developing self-supporting creative center of Ufa Aviation Institute - the management company of the industrial park HTTS UAI – ROSOIL are described. The main types of its activities are shown.","PeriodicalId":289189,"journal":{"name":"Transport engineering","volume":"45 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139002761","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: 10.30987/2782-5957-2023-12-11-20
Aleksey Abramov, V. Sholom, Denis Tyulenev, Kirill Abramov, Semyon Pilyugin
The study objective is to increase the information value, accuracy and reliability of the experimental assessment results of extreme pressure and antifriction properties of the tested materials. A brief analysis of the work on the creation of test tribo-technical equipment is given. The difference between the designs of friction machines for testing using Reichert and Timken tests is shown. The design of an upgraded friction machine for determining extreme pressure, antifriction and anti-wear properties of lubricants is presented. In the proposed installation, the radial force on the friction unit ("roller - ring" or "bar – ring") is generated by a mechanism of even loading, and the assessment of extreme pressure lubricants is determined at the moment of gripping the rubbing samples, at which the motor shaft stops. As a result of upgrading the machine, it became possible to measure the friction force, the normal load and to read the friction factor, both for the lubricants under study and for friction pairs consisting of structural and instrumental materials. The results of comparative tests on the upgraded friction machine for lubricating and cooling liquids with different contents of extreme pressure, antifriction and anti-wear additives are presented. A new friction machine design based on Reichert machine is developed, which allows testing structural and lubricating materials for friction and wear using both Reichert and Timken tests. At the same time, the accuracy of determining tribo-engineering characteristics of the tested materials is increased. It is found that as a result of equipping the friction machine with an even loading system and force measuring sensors, it becomes possible to determine extreme pressure and anti-friction properties of lubricants and structural materials, as well as to estimate the value of the friction factor.
{"title":"UPGRADED FRICTION MACHINE","authors":"Aleksey Abramov, V. Sholom, Denis Tyulenev, Kirill Abramov, Semyon Pilyugin","doi":"10.30987/2782-5957-2023-12-11-20","DOIUrl":"https://doi.org/10.30987/2782-5957-2023-12-11-20","url":null,"abstract":"The study objective is to increase the information value, accuracy and reliability of the experimental assessment results of extreme pressure and antifriction properties of the tested materials. A brief analysis of the work on the creation of test tribo-technical equipment is given. The difference between the designs of friction machines for testing using Reichert and Timken tests is shown. The design of an upgraded friction machine for determining extreme pressure, antifriction and anti-wear properties of lubricants is presented. In the proposed installation, the radial force on the friction unit (\"roller - ring\" or \"bar – ring\") is generated by a mechanism of even loading, and the assessment of extreme pressure lubricants is determined at the moment of gripping the rubbing samples, at which the motor shaft stops. As a result of upgrading the machine, it became possible to measure the friction force, the normal load and to read the friction factor, both for the lubricants under study and for friction pairs consisting of structural and instrumental materials. The results of comparative tests on the upgraded friction machine for lubricating and cooling liquids with different contents of extreme pressure, antifriction and anti-wear additives are presented. \u0000A new friction machine design based on Reichert machine is developed, which allows testing structural and lubricating materials for friction and wear using both Reichert and Timken tests. At the same time, the accuracy of determining tribo-engineering characteristics of the tested materials is increased. It is found that as a result of equipping the friction machine with an even loading system and force measuring sensors, it becomes possible to determine extreme pressure and anti-friction properties of lubricants and structural materials, as well as to estimate the value of the friction factor.","PeriodicalId":289189,"journal":{"name":"Transport engineering","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139001902","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 : 2023-08-06DOI: 10.30987/2782-5957-2023-8-26-34
A. Surnin, S. Bespal'ko
The study objective is to simulate the breakdown of a tank car boiler by safety arc, taking into account the material plasticity. In accordance with this, it is necessary to solve the following tasks: to develop a methodology for calculating the stress-strain state of the boiler under shock load in a nonlinear situation, to select rational geometric characteristics of the armor plate and its thickness. To achieve them, the theory of elasticity and plasticity and the finite element method are used. The novelty of the work is in the development of a methodology for finding out the stress-strain state of a tank car boiler under shock loading conditions, taking into account the plasticity of the material. The study results are the dependences of the strain energy and stresses on the impact velocity, stress fields, a sample of rational geometrics and thickness of the armor plate. During the study, a number of calculations were carried out to determine the strength characteristics of the boiler with different configurations of the armor plate. Based on the data obtained, the best options were selected and used to obtain a qualitative picture of the problem being solved.
{"title":"SIMULATION OF THE BREAKDOWN OF A TANK CAR BOILER BY SAFETY ARCS TAKING INTO ACCOUNT MATERIAL PLASTICITY","authors":"A. Surnin, S. Bespal'ko","doi":"10.30987/2782-5957-2023-8-26-34","DOIUrl":"https://doi.org/10.30987/2782-5957-2023-8-26-34","url":null,"abstract":"The study objective is to simulate the breakdown of a tank car boiler by safety arc, taking into account the material plasticity. In accordance with this, it is necessary to solve the following tasks: to develop a methodology for calculating the stress-strain state of the boiler under shock load in a nonlinear situation, to select rational geometric characteristics of the armor plate and its thickness. To achieve them, the theory of elasticity and plasticity and the finite element method are used. \u0000The novelty of the work is in the development of a methodology for finding out the stress-strain state of a tank car boiler under shock loading conditions, taking into account the plasticity of the material. The study results are the dependences of the strain energy and stresses on the impact velocity, stress fields, a sample of rational geometrics and thickness of the armor plate. \u0000During the study, a number of calculations were carried out to determine the strength characteristics of the boiler with different configurations of the armor plate. Based on the data obtained, the best options were selected and used to obtain a qualitative picture of the problem being solved.","PeriodicalId":289189,"journal":{"name":"Transport engineering","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126884673","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 : 2023-08-06DOI: 10.30987/2782-5957-2023-8-11-17
A. Suslin, I. Barmanov
The study objective is to analyze possible ways to increase the load capacity and develop a worm gear that meets the following requirements and working conditions: minimum weight, high reliability, maintenance-free, short-term operation mode, limited lubrication conditions, the ability to work at low temperatures. The task to which the paper is devoted is to increase the load capacity and the wear resistance of worm gears. The load capacity is defined as the possibility of transmitting the greatest torques with the smallest overall dimensions. The research methods are based on the theory of strength, theory of elasticity, mechanics of contact interaction. The novelty of the work is in finding effective design and technological ways to increase the load capacity, developing a modification of the worm gear and testing the method for calculating the strength of the transmission with a globoidal worm. Research results: a review and analysis of the results of studies concerning the modification of gear, working conditions, lubrication, manufacturing technology, wear; possible methods of increasing the bearing capacity of a small-module worm gear are considered; a modification of the gear with a globoidal worm is developed; a method of strength calculation is tested. Conclusions: the method of strength calculation and the method of modification of the globoidal gear allow improving the quality characteristics of worm gears – weight and size characteristics, reliability, resource, ease of operation.
{"title":"INCREASE IN LOAD CAPACITY OF SMALL-MODULE WORM GEAR","authors":"A. Suslin, I. Barmanov","doi":"10.30987/2782-5957-2023-8-11-17","DOIUrl":"https://doi.org/10.30987/2782-5957-2023-8-11-17","url":null,"abstract":"The study objective is to analyze possible ways to increase the load capacity and develop a worm gear that meets the following requirements and working conditions: minimum weight, high reliability, maintenance-free, short-term operation mode, limited lubrication conditions, the ability to work at low temperatures. The task to which the paper is devoted is to increase the load capacity and the wear resistance of worm gears. The load capacity is defined as the possibility of transmitting the greatest torques with the smallest overall dimensions. The research methods are based on the theory of strength, theory of elasticity, mechanics of contact interaction. The novelty of the work is in finding effective design and technological ways to increase the load capacity, developing a modification of the worm gear and testing the method for calculating the strength of the transmission with a globoidal worm. \u0000Research results: a review and analysis of the results of studies concerning the modification of gear, working conditions, lubrication, manufacturing technology, wear; possible methods of increasing the bearing capacity of a small-module worm gear are considered; a modification of the gear with a globoidal worm is developed; a method of strength calculation is tested. \u0000Conclusions: the method of strength calculation and the method of modification of the globoidal gear allow improving the quality characteristics of worm gears – weight and size characteristics, reliability, resource, ease of operation.","PeriodicalId":289189,"journal":{"name":"Transport engineering","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122544114","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 : 2023-08-06DOI: 10.30987/2782-5957-2023-8-18-25
S. Shets, Arkady Mogilyov
Wear mechanism of friction pairs in the articulated joints of steering gears of UAZ-Hunter -315195 cars is considered. The wear process of friction pairs "bush (cup) – ball pin" closed with spherical spring washers and a spring cap used in the design of the swivel joint of the car steering gear is described. The effect of fretting corrosion on the destruction of a ball joint is studied.
{"title":"WEAR MECHANISM OF FRICTION PAIRS IN ARTICULATED JOINTS OF CAR STEERING GEARS","authors":"S. Shets, Arkady Mogilyov","doi":"10.30987/2782-5957-2023-8-18-25","DOIUrl":"https://doi.org/10.30987/2782-5957-2023-8-18-25","url":null,"abstract":"Wear mechanism of friction pairs in the articulated joints of steering gears of UAZ-Hunter -315195 cars is considered. The wear process of friction pairs \"bush (cup) – ball pin\" closed with spherical spring washers and a spring cap used in the design of the swivel joint of the car steering gear is described. The effect of fretting corrosion on the destruction of a ball joint is studied.","PeriodicalId":289189,"journal":{"name":"Transport engineering","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126524656","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 : 2023-08-06DOI: 10.30987/2782-5957-2023-8-49-59
S. Korshunov, Aleksandr Smirnov, Nikita Bardov, Dmitry Semenov, A. Boldyrev
Experiment-calculated evaluation of the strength of the load-bearing body metal structure of a passenger observation car model 61-941 is done. The car is designed for tourist and sightseeing passenger trips. The project is created on the basis of a serial passenger car model 61-4179 as part of the capital repairs by Tambov Railway Car Repair Plant VRM. In accordance with the design andengineering specification, the body of the base car was significantly modernized, new planning solutions were applied for the internal equipment of the car, the frame of the car body was strengthened. Some theoretical studies using the finite element method were carried out to assess the compliance of the observation car model 61-941 with regulatory requirements. The strength and stability of the body metal structure is evaluated. At the second stage, full-scale tests of the car were carried out in static and dynamic conditions with longitudinal collisions. Additional attention is paid to the attachment points of passenger seats to the elements of the car body. The analysis of the results of theoretical and experimental studies shows their satisfactory compliance with the requirements of regulatory documents required for passenger car bodies.
{"title":"EXPERIMENT-CALCULATED EVALUATION OF THE STRENGTH OF A PASSENGER OBSERVATION CAR MODEL 61-941","authors":"S. Korshunov, Aleksandr Smirnov, Nikita Bardov, Dmitry Semenov, A. Boldyrev","doi":"10.30987/2782-5957-2023-8-49-59","DOIUrl":"https://doi.org/10.30987/2782-5957-2023-8-49-59","url":null,"abstract":"Experiment-calculated evaluation of the strength of the load-bearing body metal structure of a passenger observation car model 61-941 is done. The car is designed for tourist and sightseeing passenger trips. The project is created on the basis of a serial passenger car model 61-4179 as part of the capital repairs by Tambov Railway Car Repair Plant VRM. In accordance with the design andengineering specification, the body of the base car was significantly modernized, new planning solutions were applied for the internal equipment of the car, the frame of the car body was strengthened. Some theoretical studies using the finite element method were carried out to assess the compliance of the observation car model 61-941 with regulatory requirements. The strength and stability of the body metal structure is evaluated. At the second stage, full-scale tests of the car were carried out in static and dynamic conditions with longitudinal collisions. Additional attention is paid to the attachment points of passenger seats to the elements of the car body. The analysis of the results of theoretical and experimental studies shows their satisfactory compliance with the requirements of regulatory documents required for passenger car bodies.","PeriodicalId":289189,"journal":{"name":"Transport engineering","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127968365","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 : 2023-08-06DOI: 10.30987/2782-5957-2023-8-60-70
V. Fedin, Evgeny Lipov, Yu. V. Ronzhina, S. Korzhin
The problem of increasing the service life of the friction unit parts (wedge, bar) due to technical measures related to increasing the intensity of quenching cooling of low-carbon steels – 20L,25L, 20GL (wedge); steels 20, 20L (bar). Examples of equipment providing the technological process of quenching and the results of studying mechanical properties of wedge materials after carrying out technological operations for intensive quenching cooling are given. It is shown that the proposed technological measures provide a guaranteed mileage of 500.0 thousand km of a friction unit made of three steel grades – 20L, 25L, 20GL; cast–iron - Ch25, Ch35, Ch70 and friction bars made of 20L, 20 steels. For mass production of steel friction wages and solid board of the truck model 18-100, draft specifications are prepared.
{"title":"MEASURES TO INCREASE THE RELIABLE AND SAFE OPERATION OF THE FREIGHT CAR TRUCK FRICTION UNIT 18-100","authors":"V. Fedin, Evgeny Lipov, Yu. V. Ronzhina, S. Korzhin","doi":"10.30987/2782-5957-2023-8-60-70","DOIUrl":"https://doi.org/10.30987/2782-5957-2023-8-60-70","url":null,"abstract":"The problem of increasing the service life of the friction unit parts (wedge, bar) due to technical measures related to increasing the intensity of quenching cooling of low-carbon steels – 20L,25L, 20GL (wedge); steels 20, 20L (bar). Examples of equipment providing the technological process of quenching and the results of studying mechanical properties of wedge materials after carrying out technological operations for intensive quenching cooling are given. It is shown that the proposed technological measures provide a guaranteed mileage of 500.0 thousand km of a friction unit made of three steel grades – 20L, 25L, 20GL; cast–iron - Ch25, Ch35, Ch70 and friction bars made of 20L, 20 steels. For mass production of steel friction wages and solid board of the truck model 18-100, draft specifications are prepared.","PeriodicalId":289189,"journal":{"name":"Transport engineering","volume":"8 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126204608","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：