A5075588551- Railway Systems and Energy Efficiency
- Railway Engineering and Dynamics
- Electrical Contact Performance and Analysis
- Planetary Science and Exploration
- Distributed Control Multi-Agent Systems
- Adhesion, Friction, and Surface Interactions
- Space Satellite Systems and Control
- Structural Engineering and Vibration Analysis
- Hydraulic and Pneumatic Systems
- Fault Detection and Control Systems
- Spacecraft Dynamics and Control
- Adaptive Control of Nonlinear Systems
- Astro and Planetary Science
Northwestern Polytechnical University
2023-2024
University of Birmingham
2022-2023
Defective droppers pose a significant threat to the performance of contact between train pantograph and railway catenary. In this paper, impact damaged on pantograph–catenary interaction behaviour is analysed, varying degrees damage each dropper labelled. To improve classification accuracy when both degree position are considered, model integrating multiple 1D CNNs proposed. Approaches including randomly searching optimal hyper-parameters K-fold cross-validation used prevent overfitting...
This paper proposes a new approach to the dynamic modelling of railway track switches. The results in model which faithfully reproduces bending switch blades, allows simulated actuators (forces) be applied along length rails and can times that are an order magnitude faster than similar models multi-body dynamics software (such as Simpack). These main contributions should use researchers engineers concerned with design switches their actuation mechanisms. First, actuator is developed; then...
Track switches (also known as "point" or "turnout") are essential to the railway system and provide route flexibility by allowing vehicles move between tracks on network. However, single actuators in current switch technology mean that a actuator fault will result failure of (and concomitant delays trains waiting pass switch). This paper focuses providing redundant actuation through an approach High Redundancy Actuation (HRA), which might allow track remain operational after elements. The...
This paper provides an event-triggered finite-time adaptive bounded controller for attitude tracking of spacecraft formation flying under external disturbances and limited communication. To facilitate the realization control, a novel full-order terminal sliding mode surface is established according to hyperbolic tangent function. reduce communication frequency among members, control strategy that can converge zero in finite time investigated based on surface. Under proposed strategy, only...
The railway network is equipped with track switches that enable trains to move from one another. Existing switch actuation performed in open loop. Closed-loop control and redundant can be applied provide an opportunity enhance the reliability of system. This paper looks at design development a laboratory scale demonstrator concept. Open-loop first this High Redundancy Actuation (HRA) lab prototyping. According open-loop experimental input output, simplified linear model system identified...