Results 41 to 50 of about 1,197 (185)
A Study on the Pantograph Slide Wear Model Based on Energy Dissipation
Applied SciencesDuring train operations, the contact surface between the pantograph slide and the catenary wire is subjected to mechanical friction and an electrical current, leading to an increase in the wear of the pantograph slide and a reduction in the service life ...
Yiming Dong +4 more
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Applied Sciences, 2019 The high-speed-train pantograph is a complex structure that consists of different rod-shaped and rectangular surfaces. Flow phenomena around the pantograph are complicated and can cause a large proportion of aerodynamic noise, which is one of the main ...
Yongfang Yao +4 more
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Journal of Mathematics, Volume 2026, Issue 1, 2026.In this paper, we propose a projection method that utilizes shifted airfoil polynomials to solve systems of weakly singular fractional integro‐differential equations (FIDEs). The proposed approach converts the original system into two linear algebraic systems, facilitating efficient numerical solutions.
Saeed Althubiti, Chang Phang
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Fractional Linear Systems With Nonsingular Kernel: Explicit Solutions and Ulam–Hyers Stability
Journal of Mathematics, Volume 2026, Issue 1, 2026.This paper is devoted to the explicit representation of solutions for a class of differential equations involving the Caputo–Fabrizio fractional derivative with a nonsingular kernel. Motivated by the lack of explicit representation formulas for Caputo–Fabrizio fractional systems in the existing literature, two distinct approaches based on Laplace ...
Mustafa Aydin, Smritijit Sen
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Research on dynamic characteristics of pantograph arc under cross wind
机车电传动, 2022 The pantograph arc has become an important factor restricting the further development of high-speed trains. Therefore, in-depth research on the characteristics of pantograph arc is of great significance for further analyzing the damage characteristics of
SUN Chuanming +3 more
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Journal of Mathematics, Volume 2026, Issue 1, 2026.We explore the features of fractional integral inequalities for some new classes of interval‐valued convex functions (CF s) to establish their generalization compared to the previously known real‐valued CF s. Motivated by the foundational role of mathematical inequalities in analysis and optimization, we delve into the formulation and proof of integral
Ahsan Fareed Shah +5 more
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Chengshi guidao jiaotong yanjiuObjectiveAs the core for power supply system of urban rail transit vehicles, the pantograph-catenary system undertakes the important functions of transmitting electrical energy to vehicles through catenary and ensuring their normal operation.
Shiyu ZHANG +3 more
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Journal of Mathematics, Volume 2026, Issue 1, 2026.This paper investigates a new class of coupled fractional‐order systems driven by the generalized weighted fractional operator in the Caputo sense, recently introduced with a modified Mittag‐Leffler kernel and an auxiliary strictly increasing function φ. This operator provides a unified framework that recovers many well‐known fractional derivatives and
Fawziah M. Alotaibi, Smritijit Sen
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Study of Vehicle Pantograph-catenary Dynamic Performance Based on ADAMS
机车电传动, 2018 Pantograph-catenary dynamics performance determined the current receiving quality. The pantograph-catenary dynamics model was built according to CED160D pantograph and simple chain contacting catenary with ADAMS. The operating state of the train was used
LIU Nan
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Pantograph–Catenary Interaction Prediction Model Based on SCSA-RBF Network
Applied SciencesAs a traditional numerical simulation method for pantograph–catenary interaction research, the pantograph–catenary finite element model cannot be applied to the real-time monitoring of pantograph–catenary contact force, and the computational cost ...
Mengzhen Wu +4 more
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