A three-dimensional dynamic model for train-track interactions

• Published in: Applied Mathematical Modelling Vol. 76; pp. 443 - 465
• Main Authors: Xu, Lei, Zhai, Wanming
• Format: Journal Article
• Language: English
• Published: New York Elsevier Inc 01.12.2019; Elsevier BV
• Subjects: Cyclic calculation method; Derailments; Dynamic models; Equations of motion; Finite element method; Matrix formulation; Matrix representation; Model accuracy; Railway engineering; Railway tracks; Three dimensional models; Time dependence; Track interaction models; Train derailment; Train-track interactions; Wheel-rail separation; Train derailment; Railway engineering; Train-track interactions; Wheel-rail separation; Cyclic calculation method; Matrix formulation

•A 3-D train-track interaction model is developed with wheel-rail rigid-contact hypothesis.•The train-track coupling matrices with characterization of wheel-rail separations are illustrated.•An extended method for infinite length computation is proposed.•Model validations and numerical examples are...