Assessment of Dynamic Interaction Performance of High-Speed Pantograph and Overhead Conductor Rail System

Chen, Long; Duan, Fuchuan; Song, Ye‐Qiong; Hu, Zeyao; Liu, Zhigang; Feng, Xiaohe

doi:10.1109/tim.2021.3135340

Cited by 10 publications

(5 citation statements)

References 42 publications

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“…The next section uses the optimisation algorithm to find the optimal parameter settings for achieving the best performance at three speed levels. The finding in [34] has acknowledged the complexity of structural parameters' effect on the interaction performance. To further analyse how these variables affect the interaction performance, each of them is changed within the range of −20% to 20% with respect to the original value to perform the numerical simulation at different speed levels.…”

Section: Sensitivity Analysis Resultsmentioning

confidence: 99%

Section: Rigid Overhead System Modelmentioning

confidence: 99%

“…Figure 2b illustrates the presence of a clamp located at the bottom, which has the ability to elastically open and secure the contact wire via pressure generated from its own elasticity. According to the assumption in [34], the conductor rail and the contact wire can be seen as a whole body when analysing the interaction performance with a pantograph. Thus, the finite element method, which has shown excellent performance in various industrial backgrounds [35][36][37] is adopted here to model the rigid overhead system.…”

Section: Rigid Overhead System Modelmentioning

confidence: 99%

“…The contact stiffness is expressed as k c . In [34], field test data was used to validate the numerical accuracy of the model presented in this study.…”

Section: Modelling Of Pantographmentioning

confidence: 99%

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Sensitivity Analysis and Optimisation of Key Parameters for Railway Rigid Overhead System and Pantograph

Chen

Song

et al. 2023

Sustainability

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This paper aims to enhance the speed of rigid overhead systems by investigating the impact of important parameters of the overhead system and pantograph on the interaction performance, specifically the contact force between the panhead of the pantograph and the contact wire of the overhead system. To accomplish this, this paper first builds a rigid overhead system model based on the finite element method. The pantograph–contact wire interaction simulation is achieved by including a three-stage lumped mass pantograph model. The Sobol sensitivity analysis method is utilised to determine the contribution of different parameters to the contact force standard deviation. Subsequently, an optimisation approach is used to minimise the contact standard deviation at various speeds by adopting five crucial parameters. The sensitivity analysis of 13 variables indicates that the span length, bending stiffness, and linear density of the conductor rail, and the masses of the pantograph head and upper frame are the most relevant variables for the contact force standard deviation. The quantification of each parameter’s contribution reveals that the increase in bending stiffness generally has a positive effect in reducing the contact force fluctuation, while the decreases in other variables are preferred. The optimisation analysis shows that the optimised contact force standard deviation decreases by 39.18%, 66.77%, and 61.02% at speeds of 90 km/h, 120 km/h, and 150 km/h, respectively, compared to the original values.

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Section: Sensitivity Analysis Resultsmentioning

confidence: 99%

Section: Rigid Overhead System Modelmentioning

confidence: 99%

Section: Rigid Overhead System Modelmentioning

confidence: 99%

“…The contact stiffness is expressed as k c . In [34], field test data was used to validate the numerical accuracy of the model presented in this study.…”

Section: Modelling Of Pantographmentioning

confidence: 99%

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Sensitivity Analysis and Optimisation of Key Parameters for Railway Rigid Overhead System and Pantograph

Chen

Song

et al. 2023

Sustainability

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“…In this section, based on the simulation model of the rigid overhead system and pantograph constructed in Section 2 and Section 3 of the paper, the influence of the structural parameters of the expansion joint on the current collection quality of the pantograph-overhead system is analysed. The overall performance of the pantograph-catenary interaction has been validated experimentally in the authors’ previous work [ 49 ]. The constructed rigid overhead system model has a length of 240 m and includes one anchor segment joint with an expansion joint transition.…”

Section: Dynamics Performance With Expansion Jointsmentioning

confidence: 99%

Modelling and Analysis of Expansion Joints’ Effect on Dynamic Performance of Railway Rigid Overhead System

Feng,

Hu,

Gao

et al. 2023

Sensors

Self Cite

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This study focuses on developing a comprehensive model of a rigid overhead system, which includes essential components such as the suspension structure, positioning clamp, and expansion joint. The modelling approach utilizes finite element theory and beam elements to accurately represent the displacement, stiffness, and mass characteristics of the system. The models also incorporate the suspension structure and positioning line clamp, which play crucial roles in suspending and positioning the busbar. Various suspension structures and positioning line clamps are evaluated based on their dynamic characteristics. The expansion joint, responsible for connecting different anchor sections of the rigid overhead system, undergoes a detailed analysis. Different assembly scenarios, including ideal and deflected assembly conditions, are considered. To simulate the dynamic behaviour of the expansion joint, additional beams are introduced into the system model. The primary finding of the analysis is that the maximum stresses observed in the constructed expansion joint model, under different temperature conditions and normal/deflected assembly conditions, remain within the permissible stress limits of the material. This indicates a high level of safety. However, certain areas exhibit stress concentration, particularly at the sliding block B and sliding rod A positions. This stress concentration is primarily attributed to the unique assembly form of the expansion joint. To improve stress distribution and enhance service reliability, the analysis suggests optimizing the installation deflection angle and geometric design of the expansion joint. Furthermore, the concentrated mass at the expansion joint significantly impacts the current collection quality of the pantograph-overhead system. Mitigating this negative impact can be achieved by reducing the mass of the expansion joint.

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Analysis and Optimization of Dynamic Performance of High-Speed United Type Transition Section

Zhou,

Feng,

Duan

et al. 2024

Lecture Notes in Electrical Engineering

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Assessment of Dynamic Interaction Performance of High-Speed Pantograph and Overhead Conductor Rail System

Cited by 10 publications

References 42 publications

Sensitivity Analysis and Optimisation of Key Parameters for Railway Rigid Overhead System and Pantograph

Sensitivity Analysis and Optimisation of Key Parameters for Railway Rigid Overhead System and Pantograph

Modelling and Analysis of Expansion Joints’ Effect on Dynamic Performance of Railway Rigid Overhead System

Analysis and Optimization of Dynamic Performance of High-Speed United Type Transition Section

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