Railway Engineering Science最新文献_第9页

Seismic analysis of high-speed railway irregular bridge–track system considering V-shaped canyon effect 考虑v形峡谷效应的高速铁路不规则桥轨体系抗震分析

IF 6.3 1区工程技术

Railway Engineering Science Pub Date : 2021-11-12 DOI: 10.1007/s40534-021-00262-x

Zhu, Zhihui, Tang, Yongjiu, Ba, Zhenning, Wang, Kun, Gong, Wei

{"title":"Seismic analysis of high-speed railway irregular bridge–track system considering V-shaped canyon effect","authors":"Zhu, Zhihui, Tang, Yongjiu, Ba, Zhenning, Wang, Kun, Gong, Wei","doi":"10.1007/s40534-021-00262-x","DOIUrl":"https://doi.org/10.1007/s40534-021-00262-x","url":null,"abstract":"<p>To explore the effect of canyon topography on the seismic response of railway irregular bridge–track system that crosses a V-shaped canyon, seismic ground motions of the horizontal site and V-shaped canyon site were simulated through theoretical analysis with 12 earthquake records selected from the Pacific Earthquake Engineering Research Center (PEER) Strong Ground Motion Database matching the site condition of the bridge. Nonlinear seismic response analyses of an existing 11-span irregular simply supported railway bridge–track system were performed under the simulated spatially varying ground motions. The effects of the V-shaped canyon topography on the peak ground acceleration at bridge foundations and seismic responses of the bridge–track system were analyzed. Comparisons between the results of horizontal and V-shaped canyon sites show that the top relative displacement between adjacent piers at the junction of the incident side and the back side of the V-shaped site is almost two times that of the horizontal site, which also determines the seismic response of the fastener. The maximum displacement of the fastener occurs in the V-shaped canyon site and is 1.4 times larger than that in the horizontal site. Neglecting the effect of V-shaped canyon leads to the inappropriate assessment of the maximum seismic response of the irregular high-speed railway bridge–track system. Moreover, engineers should focus on the girder end to the left or right of the two fasteners within the distance of track seismic damage.</p>","PeriodicalId":41270,"journal":{"name":"Railway Engineering Science","volume":"39 2","pages":""},"PeriodicalIF":6.3,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138527587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Deep learning-based fault diagnostic network of high-speed train secondary suspension systems for immunity to track irregularities and wheel wear 基于深度学习的高速列车二次悬挂系统抗轨道不平整和车轮磨损故障诊断网络

IF 6.3 1区工程技术

Railway Engineering Science Pub Date : 2021-10-20 DOI: 10.1007/s40534-021-00252-z

Ye, Yunguang, Huang, Ping, Zhang, Yongxiang

{"title":"Deep learning-based fault diagnostic network of high-speed train secondary suspension systems for immunity to track irregularities and wheel wear","authors":"Ye, Yunguang, Huang, Ping, Zhang, Yongxiang","doi":"10.1007/s40534-021-00252-z","DOIUrl":"https://doi.org/10.1007/s40534-021-00252-z","url":null,"abstract":"<p>Fault detection and isolation of high-speed train suspension systems is of critical importance to guarantee train running safety. Firstly, the existing methods concerning fault detection or isolation of train suspension systems are briefly reviewed and divided into two categories, i.e., model-based and data-driven approaches. The advantages and disadvantages of these two categories of approaches are briefly summarized. Secondly, a 1D convolution network-based fault diagnostic method for high-speed train suspension systems is designed. To improve the robustness of the method, a Gaussian white noise strategy (GWN-strategy) for immunity to track irregularities and an edge sample training strategy (EST-strategy) for immunity to wheel wear are proposed. The whole network is called GWN-EST-1DCNN method. Thirdly, to show the performance of this method, a multibody dynamics simulation model of a high-speed train is built to generate the lateral acceleration of a bogie frame corresponding to different track irregularities, wheel profiles, and secondary suspension faults. The simulated signals are then inputted into the diagnostic network, and the results show the correctness and superiority of the GWN-EST-1DCNN method. Finally, the 1DCNN method is further validated using tracking data of a CRH3 train running on a high-speed railway line.</p>","PeriodicalId":41270,"journal":{"name":"Railway Engineering Science","volume":"43 1","pages":""},"PeriodicalIF":6.3,"publicationDate":"2021-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138527588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Safety evaluation of a vehicle–bridge interaction system using the pseudo-excitation method 车桥相互作用系统的伪激励安全性评价

IF 6.3 1区工程技术

Railway Engineering Science Pub Date : 2021-10-19 DOI: 10.1007/s40534-021-00259-6

N. Zhang, Zi-ji Zhou, Zhaozhi Wu

引用次数: 12

Numerical simulation and optimization of aerodynamic uplift force of a high-speed pantograph 高速受电弓气动升力的数值模拟与优化

IF 6.3 1区工程技术

Railway Engineering Science Pub Date : 2021-10-06 DOI: 10.1007/s40534-021-00258-7

Z. Dai, Tian Li, N. Zhou, Ji-ye Zhang, Weihua Zhang

引用次数: 10

Rail RCF damage quantification and comparison for different damage models 钢轨RCF损伤量化及不同损伤模型的比较

IF 6.3 1区工程技术

Railway Engineering Science Pub Date : 2021-09-27 DOI: 10.1007/s40534-021-00253-y

V. Krishna, S. Hossein-Nia, C. Casanueva, S. Stichel, G. Trummer, K. Six

引用次数: 1

Preface to special issue on hybrid and hydrogen technologies for railway operations 铁路运营混合动力和氢能技术特刊前言

IF 6.3 1区工程技术

Railway Engineering Science Pub Date : 2021-09-01 DOI: 10.1007/s40534-021-00254-x

M. Spiryagin, R. Dixon, K. Oldknow, C. Cole

引用次数: 1

A review of hydrogen technologies and engineering solutions for railway vehicle design and operations 用于铁路车辆设计和运营的氢技术和工程解决方案综述

IF 6.3 1区工程技术

Railway Engineering Science Pub Date : 2021-09-01 DOI: 10.1007/s40534-021-00257-8

Y. Sun, M. Anwar, N. Hassan, M. Spiryagin, C. Cole

引用次数: 24

Concept development and testing of the UK’s first hydrogen-hybrid train (HydroFLEX) 英国首款氢混合动力列车（HydroFLEX）的概念开发和测试

IF 6.3 1区工程技术

Railway Engineering Science Pub Date : 2021-09-01 DOI: 10.1007/s40534-021-00256-9

Charles Calvert, J. Allan, P. Amor, S. Hillmansen, Clive Roberts, P. Weston

引用次数: 7

Energy management strategy based on dynamic programming with durability extension for fuel cell hybrid tramway 基于耐久性扩展动态规划的燃料电池混合动力有轨电车能量管理策略

IF 6.3 1区工程技术

Railway Engineering Science Pub Date : 2021-09-01 DOI: 10.1007/s40534-021-00247-w

Shiyong Tao, Wei-rong Chen, Rui Gan, Luoyi Li, Guorui Zhang, Ying Han, Qi Li

引用次数: 11

Vibro-acoustic performance of steel–concrete composite and prestressed concrete box girders subjected to train excitations 钢-混凝土组合梁和预应力混凝土箱梁在列车激励下的声振性能

IF 6.3 1区工程技术

Railway Engineering Science Pub Date : 2021-08-22 DOI: 10.1007/s40534-021-00250-1

Xun Zhang, Hao Luo, Derui Kong, Tao Chen, Xi Li

引用次数: 4