A. Lamprea-Pineda, D. Connolly, M. Hussein, P. Alves Costa, P. Woodward
{"title":"Modelling the Critical Speed Amplification Effect on Railway Track-Ground Systems","authors":"A. Lamprea-Pineda, D. Connolly, M. Hussein, P. Alves Costa, P. Woodward","doi":"10.4203/ccc.1.3.5","DOIUrl":"https://doi.org/10.4203/ccc.1.3.5","url":null,"abstract":"The railway track vibration generated by the train passage depends upon the individual and combined effect of its various components: the train, the track and the supporting soil. In the case of the train, higher speeds result in larger vibrations on the railway structure. Moreover, amplification occurs when approaching the so-called ‘critical speed’, and the response is further increased when considering the multiple axles effect. Regarding the track, the type and properties also influence the overall structure response, increasing the wheel-rail interaction forces and magnifying the vibrations. Similarly, the supporting ground features directly affect track behaviour, propagating the total railway system response and causing disturbances in nearby structures and increasing the localisation of energy at transition zones. Although different numerical approaches meant to study these amplifications effects have been developed, deep-wave propagating problems induced by high-speed trains require more elaborated simulations. Thus, this paper investigates the railway track amplifications due to speed, focusing on the different track types and soil layering effects, for which semi-analytical approaches simulating the track-ground dynamic complex behaviour are employed.","PeriodicalId":243762,"journal":{"name":"Civil-Comp Conferences","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124065890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"AI FERODATA Application Enriched with Artificial Intelligence Models to Optimize Freight Transport","authors":"A. Brezulianu, I.V. Popa","doi":"10.4203/ccc.1.23.3","DOIUrl":"https://doi.org/10.4203/ccc.1.23.3","url":null,"abstract":"In freight transportation the planning methods and decision support systems are a crucial point to be considered, yielding interesting research opportunities for the development of optimization. The aim of our project was to research, develop and implement an artificial intelligence (AI) assistant module bringing new AI-based capabilities of optimization and simulation for enterprise-wide operational activities such as management of railway resources and constraints in an efficient and user-friendly manner. The main objective of the current paper concerned the best way to transport freight from given origins to given destinations within time constraints using the railway service provided by the network. This planning problem is faced in four steps (preprocessing, constraints definition, optimization phase and model’s testing). The objective function considers the train operation costs, consumption and time duration. Machine learning algorithms are developed to optimize the objective function according to an enormous number of decision variables and complicated constraints. The platform is tested in a real-world Romania railway network. Future progress of the project will provide models’ testing results and continuous improvement of the algorithms performance.","PeriodicalId":243762,"journal":{"name":"Civil-Comp Conferences","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126851057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Towards a Valid Model of Train Braking System at Low Adhesion Condition","authors":"H. Alturbeh, J. Santos, J. Stow","doi":"10.4203/ccc.1.7.4","DOIUrl":"https://doi.org/10.4203/ccc.1.7.4","url":null,"abstract":"","PeriodicalId":243762,"journal":{"name":"Civil-Comp Conferences","volume":"15 25","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120815082","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}
A. Mirzazade, J. Gonzalez-Libreros, G. Sas, C. Popescu, T. Blanksvärd, B. Täljsten
{"title":"Application of close range photogrammetry in remote railways infrastructure health monitoring","authors":"A. Mirzazade, J. Gonzalez-Libreros, G. Sas, C. Popescu, T. Blanksvärd, B. Täljsten","doi":"10.4203/ccc.1.10.25","DOIUrl":"https://doi.org/10.4203/ccc.1.10.25","url":null,"abstract":"","PeriodicalId":243762,"journal":{"name":"Civil-Comp Conferences","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127733442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"IT system for locomotive maintenance control-safety improvement in rail transport","authors":"A. Dawid, P. Sobczak, P. Buchwald","doi":"10.4203/ccc.1.27.14","DOIUrl":"https://doi.org/10.4203/ccc.1.27.14","url":null,"abstract":"","PeriodicalId":243762,"journal":{"name":"Civil-Comp Conferences","volume":"7 10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128764365","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}
R. Mousapour, P. Haji Abdulrazagh, M. Gül, M. Hendry
{"title":"Railway Track Substructure Evaluation Using Instrumented Wheelset Continuous Measurements","authors":"R. Mousapour, P. Haji Abdulrazagh, M. Gül, M. Hendry","doi":"10.4203/ccc.1.27.19","DOIUrl":"https://doi.org/10.4203/ccc.1.27.19","url":null,"abstract":"","PeriodicalId":243762,"journal":{"name":"Civil-Comp Conferences","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132646463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Robustness Analysis of Long Distance Train\u0000Crew Schedules in Germany","authors":"R. Borndörfer, B. Grimm, S. Schade","doi":"10.4203/ccc.1.23.17","DOIUrl":"https://doi.org/10.4203/ccc.1.23.17","url":null,"abstract":"","PeriodicalId":243762,"journal":{"name":"Civil-Comp Conferences","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133790648","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}