Interaction between a moving two-mass oscillator and an infinite homogeneous structure: Green’s functions method

✍ Scribed by Traian Mazilu

• Publisher: Springer
• Year: 2009
• Tongue: English
• Weight: 644 KB
• Volume: 80
• Category: Article
• ISSN: 0939-1533
• DOI: 10.1007/s00419-009-0350-x

✦ Synopsis

This paper deals with the interaction between a vehicle and a slab track using the model of moving wheel for both frequency and time-domain. The vehicle is reduced to a moving two-mass oscillator and the slab track is considered as an infinite structure consisting of elastically supported double Euler-Bernoulli beams. In order to perform the time-domain analysis, a semi-analytical method based on the outstanding properties of the time-domain Green's functions of the slab track has been developed. The method allows the computing of the non-linear wheel/rail contact (the contact loss and the non-linear contact stiffness). The vehicle/track interaction due to the polygonal wheel and the corrugated rail has been investigated and the running velocity and non-linear wheel/rail contact influences have been pointed out.