Proceedings of the 2006 IEEE/ASME Joint Rail Conference最新文献_第3页

A computer vision system for monitoring the energy efficiency of intermodal trains 用于监测多式联运列车能源效率的计算机视觉系统

Proceedings of the 2006 IEEE/ASME Joint Rail Conference Pub Date : 2006-04-04 DOI: 10.1109/RRCON.2006.215321

Y. Lai, N. Ahuja, J. Drapa, L. Milhon

{"title":"A computer vision system for monitoring the energy efficiency of intermodal trains","authors":"Y. Lai, N. Ahuja, J. Drapa, L. Milhon","doi":"10.1109/RRCON.2006.215321","DOIUrl":"https://doi.org/10.1109/RRCON.2006.215321","url":null,"abstract":"Intermodal trains are typically the fastest trains operated by North American freight railroads. It is thus ironic that these trains tend to have the poorest aerodynamic characteristics. Because of constraints imposed by equipment design and diversity, there are often large gaps between intermodal loads and these trains incur greater aerodynamic penalties and increased fuel consumption compared to other trains. We conducted train energy analyses of the most common intermodal train configurations operated in North America. It was found that matching intermodal loads with cars of appropriate length reduces the gap length thereby improving airflow. Properly matching cars with loads also avoids use of cars that are longer and thus heavier than necessary. For double stack containers on well cars, train resistance may be reduced by as much as 9% and fuel savings by 0.52 gallon per mile per train. Proper loading of intermodal trains is therefore important to improving energy efficiency. We have developed a wayside machine vision system that automatically scans passing trains and assesses the aerodynamic efficiency of the loading pattern. Machine vision algorithms are used to analyze these images and detect and measure gaps between loads and develop a quantitative index of the loading efficiency of the train. Integration of this metric that we call \"slot efficiency\" can provide intermodal terminal managers feedback on loading performance for trains and be integrated into the software support systems used for loading assignment","PeriodicalId":292357,"journal":{"name":"Proceedings of the 2006 IEEE/ASME Joint Rail Conference","volume":"533 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114792312","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

Practical issues of system integration on the Taipei MRT System 台北捷运系统整合之实务问题

Proceedings of the 2006 IEEE/ASME Joint Rail Conference Pub Date : 2006-04-04 DOI: 10.1109/RRCON.2006.215322

Kuang-Chieh Lin, Y. Hsiao

引用次数: 0

Detecting flat wheels with a fiber-optic sensor 用光纤传感器检测扁平车轮

Proceedings of the 2006 IEEE/ASME Joint Rail Conference Pub Date : 2006-04-04 DOI: 10.1115/JRC2006-94009

D. Anderson

引用次数: 7

Improving the efficiency and effectiveness of railcar safety appliance inspection using machine vision technology 利用机器视觉技术提高轨道车辆安全设备检测的效率和效果

Proceedings of the 2006 IEEE/ASME Joint Rail Conference Pub Date : 2006-04-04 DOI: 10.1115/JRC2006-94052

Riley Edwards, C. Barkan, J. Hart, S. Todorovic, Narendra Ahuja

{"title":"Improving the efficiency and effectiveness of railcar safety appliance inspection using machine vision technology","authors":"Riley Edwards, C. Barkan, J. Hart, S. Todorovic, Narendra Ahuja","doi":"10.1115/JRC2006-94052","DOIUrl":"https://doi.org/10.1115/JRC2006-94052","url":null,"abstract":"Before a train departs a yard, many aspects of the freight cars and locomotives undergo inspection, including their safety appliances. Safety appliances are handholds, ladders and other objects that serve as the interface between humans and railcars during transportation. Federal safety rules govern the design and condition of safety appliances. The current car inspection process is primarily visual making it laborious, redundant, and generally lacking of memory. There exists a potential to increase both the effectiveness and efficiency of safety appliance inspections by utilizing machine vision technology to enhance the railcar inspection process. Machine vision consists of capturing digital video and using algorithms capable of detecting and analyzing the particular objects or patterns of interest. Computer algorithms can objectively inspect railcars without tiring or becoming distracted and can also focus on certain parts of the railcar not easily seen by an inspector on the ground. Thus far, algorithms have been developed that can detect deformed ladders, handholds, and brake wheels on open-top gondolas and hoppers. Next, visual learning will be employed to teach the algorithm the differences between Federal Railroad Administration (FRA) safety appliance defects and other types of deformation not requiring a car to be bad ordered. The final product will be a wayside inspection system capable of detecting safety appliance defects on passing railcars.","PeriodicalId":292357,"journal":{"name":"Proceedings of the 2006 IEEE/ASME Joint Rail Conference","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122185289","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: 10

Further studies of forged wheel steel high temperature properties for improved finite element analysis simulations 进一步研究锻造车轮钢的高温性能，改进有限元模拟分析

Proceedings of the 2006 IEEE/ASME Joint Rail Conference Pub Date : 2006-04-04 DOI: 10.1115/JRC2006-94011

S. Dedmon, J. Pilch, C. Lonsdale

引用次数: 1

The effect of sustained wheel impacts on tapered roller bearing cages 车轮持续冲击对圆锥滚子保持架的影响

Proceedings of the 2006 IEEE/ASME Joint Rail Conference Pub Date : 2006-04-04 DOI: 10.1109/RRCON.2006.215309

M. Dick, B. Wilson

{"title":"The effect of sustained wheel impacts on tapered roller bearing cages","authors":"M. Dick, B. Wilson","doi":"10.1109/RRCON.2006.215309","DOIUrl":"https://doi.org/10.1109/RRCON.2006.215309","url":null,"abstract":"Mechanical damage to tapered roller bearings resulting from wheel impacts is a growing concern in the railroad industry. Repeated impacts can cause plastic deformation, wear, and eventually fatigue in roller bearing cages. A servo-hydraulic system was implemented in order to impact a bearing assembly with 65 g peak acceleration impacts at 6 Hz. Three different cage designs were tested for the Class F and K bearings: the standard steel design, and two polyamide cage designs. Testing was conducted on the three cage designs in impact increments of 102 , 103, 104, 105, 106, and 15times106 cycles. Between each testing increment, cages were removed from a special two-piece cone to inspect damage. Mechanical damage in the forms of plastic deformation and wear were measured by means of their area and depth. Results indicated that although high acceleration impacts were inflicted on the bearing, none of the cages developed fatigue fractures in the roller pocket corners consistent with field failures. However, a large amount of hourglass shaped damage in the roller pockets was recorded. Comparing the three designs revealed that although the polyamide cage designs were lower strength, they were more resistant to plastic deformation and wear than the steel cage design","PeriodicalId":292357,"journal":{"name":"Proceedings of the 2006 IEEE/ASME Joint Rail Conference","volume":"192 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116241627","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

Self powered wireless brake shoe force measurement system for train brakes 用于列车制动器的自供电无线闸瓦力测量系统

Proceedings of the 2006 IEEE/ASME Joint Rail Conference Pub Date : 2006-04-04 DOI: 10.1115/JRC2006-94032

C. Ludlow, D. van Schoor, T. Gipson

引用次数: 3

Development of airbags for locomotive crew protection 机车乘员安全气囊的研制

Proceedings of the 2006 IEEE/ASME Joint Rail Conference Pub Date : 2006-04-04 DOI: 10.1115/JRC2006-94024

A. Zaouk, S. Kasturi, S. Punwani, H. Nagarajan

{"title":"Development of airbags for locomotive crew protection","authors":"A. Zaouk, S. Kasturi, S. Punwani, H. Nagarajan","doi":"10.1115/JRC2006-94024","DOIUrl":"https://doi.org/10.1115/JRC2006-94024","url":null,"abstract":"The Federal Railroad Administration sponsored this work to examine the feasibility of protecting freight locomotive crew with restraint systems, such as airbags, optimized to specific conditions to which locomotive operators are exposed to. Finite element simulations and full-scale collision tests were conducted for injury mitigation evaluation of the crew with and without airbag protection. Computer simulations using MADYMO were utilized to optimize the airbag size, shape, fabric permeability, tethers and vent holes for adequate inflation duration. Based on previous collision tests and historical data, a trapezoidal crash pulse of 12 g over 0.25 seconds was used in this study. Full-scale tests simulating real world collisions were performed to study the performance of the designed airbags on locomotive operators. Dynamic loads and accelerations were measured on two identical anthropomorphic test devices (ATDs), one with the console mounted airbag and the other without an airbag, symmetrically placed in a freight locomotive at a speed of 30 mph in direct collision with a hopper car consist. The results showed that with no airbag present, the occupant experiences significant head, chest and lower abdomen injuries. When a console mounted airbag was used, the injuries were significantly reduced to well below the tolerance limits. The study also showed that the new technologies and methods developed in the design of airbags for the automobile industry can be adapted with minimum modifications for locomotive crew protection.","PeriodicalId":292357,"journal":{"name":"Proceedings of the 2006 IEEE/ASME Joint Rail Conference","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117165099","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 effect of wedge friction conditions on the dynamic wheel-rail contact force on short wavelength defects 楔形摩擦条件对短波长缺陷轮轨动态接触力的影响

Proceedings of the 2006 IEEE/ASME Joint Rail Conference Pub Date : 2006-04-04 DOI: 10.1115/JRC2006-94038

Y. Sun, C. Cole

引用次数: 1

The effects of the friction between frame and adapters on the performance of three-piece truck 车架与转接器之间的摩擦对三件式货车性能的影响

Proceedings of the 2006 IEEE/ASME Joint Rail Conference Pub Date : 2006-04-04 DOI: 10.1109/RRCON.2006.215306

F. Xia, C. Cole, P. Wolfs

引用次数: 1