WANG, WEN (Tongji University), Xu, Junqi (Tongji University), Rong, Lijun (Tongji University), Sun, Yougang (Tongji University), Ji, Wen (Tongji University), Gao, Dinggang (Tongji University), Liu, Zhigang (School of Electrical Engineering, Southwest Jiaotong University), Liu, Xiang (Tongji University)

Mapping Relationship between Track Irregularity and Carbody Acceleration in High-Speed Maglev System

Scheduled for presentation during the Regular Session "S33b-Intelligent Control for Next-Generation Railway Systems" (FR-EA-T33), Friday, November 21, 2025, 14:30−14:50, Southport 3

2025 IEEE 28th International Conference on Intelligent Transportation Systems (ITSC), November 18-21, 2025, Gold Coast, Australia

This information is tentative and subject to change. Compiled on October 18, 2025

Abstract

The electromagnetic suspension (EMS) high-speed maglev system employing active control strategies exhibits strong vehicle-track interactions. Track irregularity constitutes a critical excitation source for system vibrations and consequently serves as a primary factor influencing ride comfort. However, the precise mapping relationship between track irregularity and carbody acceleration remains insufficiently elucidated. This study first constructs time-domain track irregularity data based on the inertial reference method. Subsequently, it establishes a high-speed maglev vehicle-electromagnetic-guideway coupled dynamics model to compute carbody acceleration time histories. Finally, it develops the mapping relationship between track irregularities and carbody acceleration using the state-space methodology. The established mapping relationship provides explicit mathematical expressions, enabling rapid ride comfort evaluation and facilitating the understanding of coupled vibration mechanisms in high-speed maglev vehicle-electromagnetic-guideway systems.