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Freight car model with Y25 bogies stability analysis 配备 Y25 转向架的货车模型稳定性分析
Rail Vehicles/Pojazdy Szynowe Pub Date : 2023-11-27 DOI: 10.53502/rail-175725
M. Dusza
{"title":"Freight car model with Y25 bogies stability analysis","authors":"M. Dusza","doi":"10.53502/rail-175725","DOIUrl":"https://doi.org/10.53502/rail-175725","url":null,"abstract":"Y25 (25Tn) bogies have been used in freight cars for over 50 years. It is a proven design with a positive opinion in many European countries. In addition to the generally positive opinion about the operational properties of the Y25 bogies, there are sometimes publications whose authors notice certain imperfections related mainly to the so-called running instability, resulting in derailment under certain motion conditions. This paper presents results simulation of motion tests of a freight car with Y25 bogies. A freight car model was created using the VI-Rail software. The research focus on determining the critical velocity and examining nature of the model solutions in the overcritical velocity range. Straight track sa well as curved track motion is analysed. Empty and full wagon properties are considerd. Impact of changes the suspension system selected parameters values on vehicle model solutions stability as well as the vehicl impact on track was analysed.","PeriodicalId":147282,"journal":{"name":"Rail Vehicles/Pojazdy Szynowe","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139229056","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
Combined freight transport terminals in Germany – current state and development prospects 德国货物联运码头的现状及发展前景
Rail Vehicles/Pojazdy Szynowe Pub Date : 2023-08-31 DOI: 10.53502/rail-170997
T. Janiak
{"title":"Combined freight transport terminals in Germany – current state and development prospects","authors":"T. Janiak","doi":"10.53502/rail-170997","DOIUrl":"https://doi.org/10.53502/rail-170997","url":null,"abstract":"The article presents current issues regarding combined freight transport terminals (CFT terminals) in Germany, with particular attention to road/rail transport and the implementation of the latest technologies of rail/road handling of rolling stock in terminals. The brief descripion of the state of current knowledge about combined freight transport terminals in both organizational and technological aspects are introduced. Considerations are focused on the description of the development of selected facilities and trends in the field of terminal operations. Examples of currently implemented projects and best practices, especially the implementation of digital solutions, are presented.","PeriodicalId":147282,"journal":{"name":"Rail Vehicles/Pojazdy Szynowe","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115868084","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
Testing the wear of wheelsets of EN97 series vehicles in terms of geometrical pa-rameters of the wheel profile in two-year operation 对EN97系列车辆轮对在两年运行中车轮轮廓几何参数的磨损情况进行了测试
Rail Vehicles/Pojazdy Szynowe Pub Date : 2023-08-28 DOI: 10.53502/rail-171570
W. Sawczuk, Armando-Miguel Rilo Cañás, Sławomir Kołodziejski
{"title":"Testing the wear of wheelsets of EN97 series vehicles in terms of geometrical pa-rameters of the wheel profile in two-year operation","authors":"W. Sawczuk, Armando-Miguel Rilo Cañás, Sławomir Kołodziejski","doi":"10.53502/rail-171570","DOIUrl":"https://doi.org/10.53502/rail-171570","url":null,"abstract":"The article presents the results of wheel wear tests of selected EN97 series electric multiple units. In the tests carried out on the 14 vehicles mentioned above, which were driven on the same route, geometrical parameters of the profile of all wheels were recorded during periodic inspections. The analyzed data concerned the period of over two years of use, when the vehicles were delivered from the manufacturer to the carrier as new. In the form of graphs, cases of exceeding a given parameter in relation to the requirements set in the Maintenance System Documentation are presented, broken down into individual wheelsets. The article presents the results of operational tests, which show which wheel set parameters (wheel diameter, rim steepness, rim thickness, rim height, etc.) are most often exceeded and which are least. The analyzes of the geometric parameters of the wheel profile on the tested group of vehicles, which were used on the same route in the same period, clearly prove that the parameters most often exceeded are wheel diameter and rim steepness. These two exceeded parameters were the basis for turning the wheelsets.","PeriodicalId":147282,"journal":{"name":"Rail Vehicles/Pojazdy Szynowe","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121971489","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
Mechatronic controller of brake pipe pressure 制动管压力的机电控制器
Rail Vehicles/Pojazdy Szynowe Pub Date : 2023-06-24 DOI: 10.53502/rail-168490
Andrzej Jakubowski, Marian Kaluba, Damian Goliwąs
{"title":"Mechatronic controller of brake pipe pressure","authors":"Andrzej Jakubowski, Marian Kaluba, Damian Goliwąs","doi":"10.53502/rail-168490","DOIUrl":"https://doi.org/10.53502/rail-168490","url":null,"abstract":"In this article mechatronic controller of brake pipe pressure was presented being the result of research and development work carried out at the Center of Rail Vehicles in Poznań. This function is performed by the module using binary voltage signals. Its structural structure and functionality are described and the results of empirical research are presented. The analysis of the research results indicates that the developed module can be used in the control systems of the railway air brake.","PeriodicalId":147282,"journal":{"name":"Rail Vehicles/Pojazdy Szynowe","volume":"282 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116087016","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
Determination of the reactance of rail vehicles wheelsets 轨道车辆轮对电抗的测定
Rail Vehicles/Pojazdy Szynowe Pub Date : 2023-06-18 DOI: 10.53502/rail-168083
Adam Garczarek, Krystian Woźniak, T. Olejniczak, Radosław Waśkowicz, D. Stachowiak
{"title":"Determination of the reactance of rail vehicles wheelsets","authors":"Adam Garczarek, Krystian Woźniak, T. Olejniczak, Radosław Waśkowicz, D. Stachowiak","doi":"10.53502/rail-168083","DOIUrl":"https://doi.org/10.53502/rail-168083","url":null,"abstract":"The article presents issues related to the determination of resistance, impedance, and reactance of rail vehicles wheelsets in relation to applicable standards and regulations. \u0000The methodology of conducting this type of test is discussed, and a configured test stand is presented to measure the resistance and impedance of the wheelsets. The uncertainty budget for this type of testing is discussed. Exemplary measurement results are presented and analyzed.","PeriodicalId":147282,"journal":{"name":"Rail Vehicles/Pojazdy Szynowe","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125551355","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: 1
Strength of a bent sandwich beam with clamped ends 两端夹紧的弯曲夹层梁的强度
Rail Vehicles/Pojazdy Szynowe Pub Date : 2023-03-05 DOI: 10.53502/rail-161868
Joanna Kustosz, K. Magnucki, D. Goliwąs
{"title":"Strength of a bent sandwich beam with clamped ends","authors":"Joanna Kustosz, K. Magnucki, D. Goliwąs","doi":"10.53502/rail-161868","DOIUrl":"https://doi.org/10.53502/rail-161868","url":null,"abstract":"The subject of the work is a symmetrical sandwich beam with clamped ends under uniformly distributed load. The system of two equilibrium equations, formulated taking into account the literature, was solved analytically. The function of the shear effect and the maximum deflection of the beam were determined. The stress state at the clamped end of the beam is described in detail. The significant influence of the shear effect on the normal stresses in the outer layers of the beam near the clamped end was indicated. Exemplary calculations were made for the adopted family of beams. Moreover, the numerical FEM model of the beam was developed and calculations were made for this adopted family of beams. A comparative analysis of the obtained results was carried out.","PeriodicalId":147282,"journal":{"name":"Rail Vehicles/Pojazdy Szynowe","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124904444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The sensors-based artificial intelligence Train Control and Monitoring System (TCMS) for managing the railway transport fleet 基于传感器的人工智能列车控制与监控系统(TCMS)，用于管理铁路运输车队
Rail Vehicles/Pojazdy Szynowe Pub Date : 2023-01-25 DOI: 10.53502/rail-159639
M. Kalinowski, Paweł Weichbroth
{"title":"The sensors-based artificial intelligence Train Control and Monitoring System (TCMS) for managing the railway transport fleet","authors":"M. Kalinowski, Paweł Weichbroth","doi":"10.53502/rail-159639","DOIUrl":"https://doi.org/10.53502/rail-159639","url":null,"abstract":"Railways deliver a safe and sustainable form of transport and are typically pointed as one the safest form of transportation. Nevertheless, train accidents still happen, and when they happen, the consequences concern serious fatalities and injuries. Since every case is unique, the most frequent causes of train accidents are mechanical derailments, failures, as well as human errors and ignorance. In order to mitigate the risks posed by both physical and human related factors, various technological advancements have been designed and implemented. Among many existing Train Control and Monitoring Systems (TCMS), one can observe that recently developed artificial intelligence (AI) methods are also considered to be integrated part of the modern TCMS solutions. Following recent AI improvements and trends, in this paper we aim to present and discuss our newly developed TCMS system. In particular, both the system architecture and features are described along with the expected benefits of its implementation.","PeriodicalId":147282,"journal":{"name":"Rail Vehicles/Pojazdy Szynowe","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124957325","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
Evaluation of weight wear of disc brake pads after test stands 试车后盘式刹车片重量磨损的评价
Rail Vehicles/Pojazdy Szynowe Pub Date : 2022-12-28 DOI: 10.53502/rail-162350
W. Sawczuk, Armando-Miguel Rilo Cañás, S. Kołodziejski
{"title":"Evaluation of weight wear of disc brake pads after test stands","authors":"W. Sawczuk, Armando-Miguel Rilo Cañás, S. Kołodziejski","doi":"10.53502/rail-162350","DOIUrl":"https://doi.org/10.53502/rail-162350","url":null,"abstract":"The article presents the results of the research of a railway disc brake in the evaluation of the weight wear of friction pads. The tests were carried out on a certified brake stand where the friction and mechanical characteristics of the brake are determined. The stand was additionally equipped with a thermal imaging camera to observe the contact of the pads with the brake disc. Attention was also paid to examining the influence of such parameters of the braking process as the contact surface of the pad with the disc, the thickness of the pads as a determinant of their initial wear, the pressure of the pads to the disc, braking mass and braking speed on the weight wear of the friction pads.","PeriodicalId":147282,"journal":{"name":"Rail Vehicles/Pojazdy Szynowe","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127440285","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
Intermodal rail transport in selected European countries 欧洲部分国家的联运铁路运输
Rail Vehicles/Pojazdy Szynowe Pub Date : 2022-12-28 DOI: 10.53502/rail-158579
M. Orczyk, Tomasz Nowaczyk, P. Urbański
{"title":"Intermodal rail transport in selected European countries","authors":"M. Orczyk, Tomasz Nowaczyk, P. Urbański","doi":"10.53502/rail-158579","DOIUrl":"https://doi.org/10.53502/rail-158579","url":null,"abstract":"Paper presents analysis of intermodal rail transport in selected loading units. The brief description of the loading units is presented. The volume of intermodal rail transport of load units in European countries in 2021 is shown, taking into account mass of transported goods, transport performance and average transport distance. Goods in the intermodal transport are carried out in container, swap bodies, semi-trailers and road sets. The most frequently used loading unit is the container. Semi-trailers is the most often used loading unit in road freight transport. However, semitrailers are rarely used in intermodal transport in most European countries. In the case of Poland, the share of intermodal transport of containers and swap bodies by rail constitutes a significant share in the European market, however, the transport of semi-trailers and road sets is still a rather unpopular form of transport compared to other European countries.","PeriodicalId":147282,"journal":{"name":"Rail Vehicles/Pojazdy Szynowe","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131296688","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: 1
Characteristics of fuel cells under static and dynamic conditions 静态和动态条件下燃料电池的特性
Rail Vehicles/Pojazdy Szynowe Pub Date : 2022-12-25 DOI: 10.53502/rail-157516
F. Szwajca, R. Spalletta, Andrew Berger, I. Pielecha
{"title":"Characteristics of fuel cells under static and dynamic conditions","authors":"F. Szwajca, R. Spalletta, Andrew Berger, I. Pielecha","doi":"10.53502/rail-157516","DOIUrl":"https://doi.org/10.53502/rail-157516","url":null,"abstract":"Modern internal combustion powertrains are the main source of propulsion for on-road and non-road vehicles. However, they are increasingly being replaced by electric or fuel cell-equipped alternative propulsion systems. The article presents a study of fuel cell characteristics operating under both static and dynamic conditions, with a 1.2 kW fuel cell set with a voltage converter and lead-acid batteries. In the conducted tests, the fuel cell stack's maximum efficiency reached 65%. Load tests (static and dynamic) have indicated higher fuel cell efficiencies when using hybrid operation with a DC/DC converter and battery.","PeriodicalId":147282,"journal":{"name":"Rail Vehicles/Pojazdy Szynowe","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124832457","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: 1
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