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- Title
Design of a lateral active suspension controller for railway vehicles: a focus on ride comfort and perturbations.
- Authors
Park, Jungwan; Yang, Hyunseok
- Abstract
This paper presents a study on the dynamic model and robust controller design for enhancing ride comfort in railway vehicles. An analytical model is introduced, encompassing the lateral, roll, and yaw motions of wheelsets, bogies, and the car body, while incorporating an efficient method for computing wheel-rail interactions. Rail irregularities and their impact on vibration excitation are also examined. A robust controller design methodology is proposed to address uncertainty and ride comfort quality, considering the significant variations in mass and moment of inertia experienced by railway vehicles. Through simulations, the designed controller consistently demonstrates an approximate 2 dB improvement in ride comfort across different levels of uncertainty. Future research directions include developing controller designs considering actuator response characteristics and identifying additional conditions for practical implementation. This study contributes to understanding railway vehicle dynamics and lays the foundation for effective control strategies to enhance ride comfort while accommodating uncertain operating conditions.
- Subjects
RAILROAD trains; MOMENTS of inertia; BOGIES (Vehicles); WHEELS; DYNAMIC models; ROBUST control
- Publication
Journal of Mechanical Science & Technology, 2023, Vol 37, Issue 11, p5781
- ISSN
1738-494X
- Publication type
Article
- DOI
10.1007/s12206-023-1017-1