Wheel-rail Interactions in High Speed Railway Networks during Rapid Train Transit

Khan, M. Roshan; Dasaka, Satyanarayana Murty

doi:10.1016/j.matpr.2018.10.350

Cited by 12 publications

(5 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the article [12] three-dimensional numerical modelling of the moving load of the wheel-rail interaction for high-speed and heavy trains is investigated. Simulations were performed in ANSYS with a hybrid model involving a flexible wheelset moving on a pair of rigid rails, which helped in estimating the frictional stresses at the wheel-rail interface during the train motion.…”

Section: Systems For Measuring the Forces Acting On The Running Parts...mentioning

confidence: 99%

Assessment of the Quality Indicators of the Carriage Movement by Directly Measuring the Forces of Interaction between the Wheels and Rails

Fomin,

Prokopenko

2024

Communications

View full text Add to dashboard Cite

This work describes the features and methods of measuring the forces of interaction between the wheel pairs and rails by measuring wheel deformations at control points. The work also contains recommendations for direct measurements of the forces of interaction between the wheels and rails to determine the actual margin of stability of wheel pairs from derailment. The result of the work is general requirements for the system of direct measurement of the strength of interaction of the high-speed rolling stock wheel pairs with rails and scientifically based recommendations for direct measurement of the interaction forces of wheels and rails. The problems of interaction between the wheel pairs and rails do not significantly depend on the track width and are general in nature for different countries of the world.

show abstract

Section: Systems For Measuring the Forces Acting On The Running Parts...mentioning

confidence: 99%

Assessment of the Quality Indicators of the Carriage Movement by Directly Measuring the Forces of Interaction between the Wheels and Rails

Fomin,

Prokopenko

2024

Communications

View full text Add to dashboard Cite

show abstract

“…Thus, it is reasonable to ignore the track bed deformations, and this assumption has been adopted in many relevant studies. [22,[43][44][45] If the track bed dynamics need to be considered, a new subsystem for the track bed should be created between the wheel-rail and bridge subsystems, which can certainly be realized within the framework of the proposed TWBB model.…”

Section: Ta B L Ementioning

confidence: 99%

“…Equations ( 60) and (61) connect the bearing and bridge subsystems, which guarantees the establishment of a displacementinput bearing subsystem. The outputs 𝑦 𝑏𝚤𝑑 (𝑥 𝑘𝚤 , 𝑡), ẏ𝑏𝚤𝑑 (𝑥 𝑘𝚤 , 𝑡), and ÿ𝑏𝚤𝑑 (𝑥 𝑘𝚤 , 𝑡) are used to calculate 𝐲 𝑏𝚤 (𝑥 𝑘𝚤 , 𝑡) based on Equation (45). Finally, the horizontal bridge motion at the 𝑘th wheelset location can be obtained as 𝐲 𝑏,𝑤𝑘 (𝑡) = 𝐲 𝑏𝚤 (𝑥 𝑘𝚤 , 𝑡) − 𝛉 𝑏𝚤 (𝑥 𝑘𝚤 , 𝑡)ℎ 𝑟 .…”

Section: Bridge Horizontal Motionmentioning

confidence: 99%

Seismic analysis of 3D train–wheel–bridge–bearing systems: Modeling

Gómez

et al. 2023

Earthq Engng Struct Dyn

View full text Add to dashboard Cite

Bearing effects have not been deeply investigated in the dynamic analysis of a train-bridge coupled system subjected to earthquake motions, and existing studies on base isolation of railway bridges have typically not considered the running train. To fill these gaps, this paper develops the numerical model of a three-dimensional train-wheel-bridge-bearing (TWBB) system for seismic analysis. The substructuring method is implemented to separate the TWBB system into the train, wheel-rail, bridge and bearing subsystems, and couple them using state-space representations. The complete model of the TWBB system has three main features: fewer degrees of freedom (DOF) than traditional finite element methods, applicability to different types of bearings, and simplicity as no iterations in the simulation are required. Therefore, the proposed procedure demonstrates that the TWBB model is an efficient and flexible representation to obtain and predict realistic demands for engineering purposes.

show abstract

“…Some quantitative studies have evaluated the railway systems' environmental impacts throughout their lifecycle. Khan et al (2019) investigated the effect of the construction phase of rail lines on environmental pollutants, such as air and noise pollution, in urban areas [28]. Teng et al (2022) estimated carbon reductions achieved by trains throughout the implementation of clean energy sources compared to fossil fuels [29].…”

Section: Literature Reviewmentioning

confidence: 99%

Using Mixed Methods to Identify Evaluation Indicators for Green Railway Transportation Operations in China

Chen,

Yu,

Fang

et al. 2023

Sustainability

View full text Add to dashboard Cite

The transition of China’s railways from aggressive expansion to sustainable development has sparked widespread discussions on green railways. Previous studies have primarily focused on the fundamental aspects of green rail design and construction. However, the green operation phase, one of the most critical stages in the entire lifecycle of railways, has been overlooked. This study used a mixed-method approach, combining systematic review and qualitative analysis, to identify significant environmental, economic, and social evaluation indicators for green railway transportation operations. Through an examination of 123 articles and interviews with four professors in academia, two Planning and Design Institute technicians, one government staff, and one railway practitioner, this study identified 17 key indicators associated with green operations in railways. The results showed that previous studies in the environmental aspect primarily focused on noise pollution, water pollution, solid waste, ecological conservation, and the use of construction materials. In the social part, the main concern is social equality. Green railway operations have the potential to impact social equity through the movement of people and goods, which makes accessibility a preferable evaluation measure. Regarding economic indicators, the influencing factors are more complex (such as regional GDP per capita), making it difficult to evaluate the effectiveness of green railway operations directly. We suggest the inclusion of more economic-related indicators that directly correlate with green operations in railways.

show abstract

Wheel-rail Interactions in High Speed Railway Networks during Rapid Train Transit

Cited by 12 publications

References 2 publications

Assessment of the Quality Indicators of the Carriage Movement by Directly Measuring the Forces of Interaction between the Wheels and Rails

Assessment of the Quality Indicators of the Carriage Movement by Directly Measuring the Forces of Interaction between the Wheels and Rails

Seismic analysis of 3D train–wheel–bridge–bearing systems: Modeling

Using Mixed Methods to Identify Evaluation Indicators for Green Railway Transportation Operations in China

Contact Info

Product

Resources

About