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Proceedings., Technical Papers Presented at the IEEE/ASME Joint Railroad Conference最新文献

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SCAN: a decision support system for railroad scheduling 铁路调度决策支持系统
Proceedings., Technical Papers Presented at the IEEE/ASME Joint Railroad Conference Pub Date : 1989-04-25 DOI: 10.1109/RRCON.1989.77288
D. Jovanovic'c, P. Harker
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引用次数: 3
Tractive power supply at German Federal Railway's 400 km/h runs 德国联邦铁路400公里/小时的牵引供电
Proceedings., Technical Papers Presented at the IEEE/ASME Joint Railroad Conference Pub Date : 1989-04-25 DOI: 10.1109/RRCON.1989.77277
W. Harprecht, R. Seifert, F. Kiessling
{"title":"Tractive power supply at German Federal Railway's 400 km/h runs","authors":"W. Harprecht, R. Seifert, F. Kiessling","doi":"10.1109/RRCON.1989.77277","DOIUrl":"https://doi.org/10.1109/RRCON.1989.77277","url":null,"abstract":"A short review is given of the overhead catenary system used for several high-speed lines and of novel high-performance pantographs. The characteristic data of the trial section are described. Upgrading of the catenary and using a novel pantograph enabled record speed on rails (406.9 km/h) to be attained. Advanced measuring devices were used to supervise the run of the pantograph and the behavior of the catenary. The monitored data proved that the tractive power was reliably transmitted to the vehicle even at the peak speed. The design speed of the catenary was 250 km/h. Tests carried out under the catenary and the high-speed runs demonstrated the effectiveness of the design. They proved that in regular service, speeds up to 300 km/h will not cause any reductions of the quality of contact between the pantograph and the overhead catenary. The topography of the trial section, the limited superelevation of the rail, and the power capacity of the train determined the achieved speed. The catenary would have been suitable for a further increase in speed.<<ETX>>","PeriodicalId":339427,"journal":{"name":"Proceedings., Technical Papers Presented at the IEEE/ASME Joint Railroad Conference","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122011515","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: 4
Applications and economic justification for on-board locomotive computers 机车车载计算机的应用及经济论证
Proceedings., Technical Papers Presented at the IEEE/ASME Joint Railroad Conference Pub Date : 1989-04-25 DOI: 10.1109/RRCON.1989.77280
D. Fishman
{"title":"Applications and economic justification for on-board locomotive computers","authors":"D. Fishman","doi":"10.1109/RRCON.1989.77280","DOIUrl":"https://doi.org/10.1109/RRCON.1989.77280","url":null,"abstract":"Three applications of onboard locomotive computers are explored: advanced train control systems (ATCS); data management; and train handling and maintenance. Economic benefits of retrofitting the railroads' current fleet of locomotives with onboard computers are examined, as are implications for how the industry makes decisions about such technology. The economic justification for onboard computers is discussed in connection with balancing the costs of implementation against the resulting benefits such as enhanced safety, increased productivity and equipment utilization, improved customer service, and savings on fuel, maintenance, and clerical expenses.<<ETX>>","PeriodicalId":339427,"journal":{"name":"Proceedings., Technical Papers Presented at the IEEE/ASME Joint Railroad Conference","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122240999","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
Development and validation of a general vehicle dynamics simulation (NUCARS) 通用车辆动力学仿真(NUCARS)的开发与验证
Proceedings., Technical Papers Presented at the IEEE/ASME Joint Railroad Conference Pub Date : 1989-04-25 DOI: 10.1109/RRCON.1989.77279
F. Blader, J. Elkins, N. Wilson, P. Klauser
{"title":"Development and validation of a general vehicle dynamics simulation (NUCARS)","authors":"F. Blader, J. Elkins, N. Wilson, P. Klauser","doi":"10.1109/RRCON.1989.77279","DOIUrl":"https://doi.org/10.1109/RRCON.1989.77279","url":null,"abstract":"NUCARS (New and Untried Car Analytic Regime Simulation) is a general-purpose program for modeling rail vehicle transient and steady-state response. NUCARS models the interaction of an arbitrary number of rigid or flexible bodies joined by suspension-element-type connections. Means are provided for varying the number and identity of the degrees of freedom chosen for each body. The potential choices include all translational and rotational body degrees of freedom and the first flexible modes (for all bodies, excluding the wheelsets) in twist and in vertical and lateral bending. All connections must be assigned a stiffness and/or damping characteristic. Rigid connections are given large stiffnesses. The representation of connection location and of forces through the connections is chosen to minimize the program memory required. NUCARS is coded in Fortran 77 for use on IBM-compatible personal computers. Three vehicle dynamics applications are presented, including results of validation testing with a lightweight, two-axle, intermodal car.<<ETX>>","PeriodicalId":339427,"journal":{"name":"Proceedings., Technical Papers Presented at the IEEE/ASME Joint Railroad Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126005121","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: 11
Railway track admittance, earth-leakage effects and track circuit operation 轨道导纳、漏地效应与轨道电路运行
Proceedings., Technical Papers Presented at the IEEE/ASME Joint Railroad Conference Pub Date : 1989-04-25 DOI: 10.1109/RRCON.1989.77281
R. Hill, D. Carpenter, T. Tasar
{"title":"Railway track admittance, earth-leakage effects and track circuit operation","authors":"R. Hill, D. Carpenter, T. Tasar","doi":"10.1109/RRCON.1989.77281","DOIUrl":"https://doi.org/10.1109/RRCON.1989.77281","url":null,"abstract":"A railway track acts as a pair of leaky ground-return conductors for propulsion current in the immediate vicinity of trains and as an imperfectly insulated conductor pair for double-rail track circuits. The authors consider the effect of ground admittance and leakage conditions from both the traction and signaling viewpoints. Problems concerning rail voltage safety level, earth leakage currents, and rail current distribution are examined. Capacitive compensation is evaluated as a means of improving the shunting sensitivity of track circuits with high ballast conductivity.<<ETX>>","PeriodicalId":339427,"journal":{"name":"Proceedings., Technical Papers Presented at the IEEE/ASME Joint Railroad Conference","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132577119","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: 25
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