scholarly journals High-Speed Rail Vehicles. ICE Family-from Locomotive-hauled Trains to Multiple Units.

1997 ◽  
Vol 117 (5) ◽  
pp. 289-292
Author(s):  
TOMOKI WATANABE
Keyword(s):  
High Speed ◽  
High Speed Rail ◽  
Rail Vehicles ◽  
Multiple Units

scholarly journals An Empirical Study on the Comprehensive Optimization Method of a Train Diagram of the China High Speed Railway Express

2019 ◽  
Vol 11 (7) ◽  
pp. 2141
Author(s):  
Xueqiao Yu ◽  
Maoxiang Lang ◽  
Wenhui Zhang ◽  
Shiqi Li ◽  
Mingyue Zhang ◽  
...  
Keyword(s):  
Sustainable Development ◽  
High Speed ◽  
Railway Transportation ◽  
Railway Network ◽  
High Speed Rail ◽  
High Speed Railway ◽  
Logistics Industry ◽  
The Sustainable Development ◽  
Express Train ◽  
Multiple Units

The rapid and stable development of China’s economy has driven the increasing demand for express transportation. Based on network operation, China Railway Corporation of High-speed Railway launched high-speed rail products, which have attracted wide attention from all walks of life. With the application of high-speed express trains, the market structure of express transportation in China will change dramatically, from highways as the main mode of transportation to high-speed railway transportation relying on a high-speed railway network, which will effectively reduce the environmental pollution caused by express transportation and further improve the sustainable development of the economy and the logistics industry. At present, the freight Electric Multiple Units (EMU) has been successfully developed and has entered the final test stage. In the last paper, we have introduced the theory and method of the high-speed rail express train operation plan. In addition, a train diagram is an important foundation of railway transportation organization. In order to ensure the sustainable development of high-speed rail express trains after they are put into use, based on the operation plan of high-speed rail express trains, this paper establishes a comprehensive compilation model of a high-speed rail express train diagram, considering train running time, freight flow distribution scheme, and the operation plan of freight multiple units, and an exact solution algorithm based on the Lagrange relaxation algorithm is designed. The computational results are encouraging and demonstrate the effectiveness of the model and solution method.

scholarly journals Field Measurements of Vibration on the Car Body-Suspended Equipment for High-Speed Rail Vehicles

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Jinying Guo ◽  
Huailong Shi ◽  
Fansong Li ◽  
Pingbo Wu
Keyword(s):  
High Speed ◽  
Field Measurements ◽  
Railway Vehicle ◽  
Elastic Suspension ◽  
High Speed Rail ◽  
Test Configuration ◽  
Car Body ◽  
Rail Vehicles ◽  
Frequency Domains ◽  
Low Pass

The vibrations in the flexible car bodies of the high-speed electric multiple units (EMUs) and their coupling effects with the bogies and other types of equipment vibrating have lead issues for railway operators and gained interest for researchers. Other than a numerical investigation, field measurements on the vibrating characteristics of the car body (CB) and its suspended equipment (CBSE) for a high-speed railway vehicle were performed to elaborate the vibrating characteristics on the CB and its CBSE. In this long-term tracking test, the running stability of vehicle and wheel-rail interaction were also examined with the increase of operation distance (OD), a total of 2,400,000 km. The test configuration and arrangements are introduced first, followed by the data analysis in time and frequency domains. It is seen that the wheelset conicity increases 0.008 per 10,000 km, which increases approximately linearly with the OD from 0.10 to 0.40. Two types of wheel treads, S1002CN and LMB10, have different ranges in conicity and reprofiling cycles. The lateral accelerations on CB in a downward-running case (0.5 g) are much greater than that in upward-running case (0.2 g) corresponding to the vehicle stability differences. The 15 Hz low-pass filtered acceleration on CB experiences a maximum of 0.10 g and an averaged amplitude around 0.05 g, whereas the frequency spectrum has peaks of 0.01 g on CB and 0.1 g on CBSE. It states that an elastic suspension between the CBSE and the CB prevents the high-frequency vibration from the CB.

scholarly journals Application of the Flame-Retardant Magnesium Alloy to High Speed Rail Vehicles

Materia Japan ◽  
2013 ◽  
Vol 52 (10) ◽  
pp. 484-490 ◽  
Author(s):  
Hisashi Mori ◽  
Kenji Fujino ◽  
Ken Kurita ◽  
Yasumasa Chino ◽  
Naobumi Saito ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Flame Retardant ◽  
High Speed ◽  
High Speed Rail ◽  
Rail Vehicles

scholarly journals Optimization of the Shunting Operation Plan at Electric Multiple Units Depots

2019 ◽  
Vol 2019 ◽  
pp. 1-15
Author(s):  
Jintang Shi ◽  
Haodong Li
Keyword(s):  
High Speed ◽  
Planning Horizon ◽  
Planning System ◽  
Neighborhood Search ◽  
Utilization Rate ◽  
Total Delay ◽  
High Speed Rail ◽  
Stub End ◽  
Solution Efficiency ◽  
Multiple Units

The number of standard electric multiple units (EMUs) in China has increased from 1003 in 2013 to 3256 in 2018. For maintaining all EMUs in time, the high-speed rail system with the fast-developing number of EMUs is facing growing pressure. The maintenance and cleaning capacity of an EMU depot can be improved by a better shunting operation planning (SOP). This paper considers an SOP problem at EMU depots, which may have two types of yards, namely, stub-end and through. Every track at an EMU depot has two sections and can accommodate two short standard EMUs of 8 railcars or one long EMU of 16 railcars. As the SOP is currently handled manually by dispatchers, this paper proposes two integer linear programming models for two types of yards for daily planning and dispatching, which aim at minimizing the total delay time of all EMUs during the planning horizon. A Reduced Variable Neighborhood Search (RVNS) algorithm is designed to improve the solution efficiency. The results of the numerical experiment show that the RVNS algorithm can yield an optimal maintenance plan in a few seconds for depots of different layout types and can be applied to a computer-aided planning system. The track utilization rate of the maintenance yard with the stub-end type is higher than that of the through type. The stub-end type may be more suitable for the current schedule, as its total track utilization rate is much lower than the through type.

Sign in / Sign up

Export Citation Format

Share Document