A5024020884- Electrical Contact Performance and Analysis
- Railway Systems and Energy Efficiency
- Mechanical stress and fatigue analysis
- Adhesion, Friction, and Surface Interactions
- Railway Engineering and Dynamics
- Advanced Fiber Optic Sensors
- RFID technology advancements
- Fluid Dynamics and Vibration Analysis
- Aerodynamics and Fluid Dynamics Research
- Engineering Applied Research
Southwest Jiaotong University
2020-2025
The frequent failures of the pantograph pose a significant risk to reliable operation pantograph-catenary systems (PCS). However, have not received sufficient attention in PCS research, where studies typically focus on system interactions rather than itself. Moreover, high precision load spectrum fitting is also one focuses therefore, semi-data-driven high-precision spatial method for proposed this paper. First, model with rigid-flexible hybrid was established and validated obtain at hinge...
In recent years, structural failures of the pantographs have occurred frequently, posing a significant threat to normal operation pantograph and catenary system (PCS). However, this issue has not received sufficient attention, where existing models are typically employed study interaction PCS rather than itself. Therefore, beginning with structure pantograph, paper reveals load asymmetry upper arm, subsequently, establishes dynamics model which can capture asymmetrical dynamic behaviour. The...
The pantograph, a critical component of the pantograph-catenary system (PCS), operates in harsh environments and is susceptible to crack failures, which pose risks current collection quality operational safety. Despite its importance, service reliability has not been adequately explored. This study presents novel approach developing high-precision three-dimensional (3D) load spectra for key pantograph components. Initially, dynamics model enhanced accurately capture 3D dynamic loads....
Abstract The coupling of the pantograph-catenary system represents a complex multi-disciplinary challenge, intertwining multi-fields and intricate interactions. Based on thermodynamic theory, this paper establishes thermal-force model for pantograph carbon slider high-speed trains, taking into account multiple physical field factors such as heat, dynamics, electricity. Utilizing contact test bench, we validate full-scale thermo-mechanical slider. Thereafter, assess coupled temperature stress...
The coupling of the pantograph-catenary (PAC) system is a challenging problem involving multi-physics field and interdisciplinary interaction. Traditional dynamics analysis focuses on mechanical characteristics, such as vibration stress distribution, which often neglects role temperature. Similarly, conventional temperature modeling does not consider effects forces.Given this, taking into account mutual between thermodynamics, this paper for first time proposes thermomechanical model...