Multibody dynamics analysis of vehicle–track interactions for railway substructure condition monitoring

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Multibody dynamics analysis uncovers substructure stiffness impacts in railway tracks, highlighting monitoring opportunities.

Track substructure stiffness significantly affects railway infrastructure assessments, improving predictive maintenance.
Vehicle–track interactions show that modal frequencies respond to substructure variations, enhancing structural health monitoring.
The analysis uses multibody simulation software, examining axle box accelerations under different track conditions.
Findings emphasize the utility of modal superposition for assessing rail stress and supporting infrastructure integrity.

Narayanan et al. (2025) studied this question.

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