𝔖 Bobbio Scriptorium
✦   LIBER   ✦

VERTICAL DYNAMIC INTERACTION BETWEEN TRAIN AND TRACK INFLUENCE OF WHEEL AND TRACK IMPERFECTIONS

✍ Scribed by J.C.O. Nielsen; A. Igeland

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
516 KB
Volume
187
Category
Article
ISSN
0022-460X

No coin nor oath required. For personal study only.

✦ Synopsis

The vertical dynamic behaviour is investigated for a railway bogie moving on a rail which is discretely supported, via railpads, by sleepers resting on an elastic foundation. The transient interaction problem is numerically solved by use of an extended state-space vector approach in conjunction with a complex modal superposition for the track. Application examples are given in which the influences of three types of practically important imperfections in the compound vehicle/track system are investigated. The first is a sinusoidal corrugation of the railhead and the second a skid flat on the wheel tread (a wheelflat). The third imperfection is a case where a single sleeper has lost its support due to erosion of the ballast. Physical explanations of the calculated interaction behaviour are given.

πŸ“œ SIMILAR VOLUMES

DYNAMIC INTERACTION BETWEEN TRAIN WHEELS
DYNAMIC INTERACTION BETWEEN TRAIN WHEELS AND THE SUBSURFACE
✍ H.S. LOS; G.C. HERMAN; P. HΓ–LSCHER πŸ“‚ Article πŸ“… 2001 πŸ› Elsevier Science 🌐 English βš– 265 KB

Passing trains generate vibrations in the soil, caused by the train response to track irregularities. This is particularly the case in soft-soil regions, where the surface wavespeed is comparable to the train speed. Interaction between ground vibrations and the train can give rise to di!erent e!ects

ANALYSES OF DYNAMIC RESPONSE OF VEHICLE
ANALYSES OF DYNAMIC RESPONSE OF VEHICLE AND TRACK COUPLING SYSTEM WITH RANDOM IRREGULARITY OF TRACK VERTICAL PROFILE
✍ X. LEI; N.-A. NODA πŸ“‚ Article πŸ“… 2002 πŸ› Elsevier Science 🌐 English βš– 291 KB

A dynamic computational model for the vehicle and track coupling system is developed by means of finite element method in this paper. In numerical implementation, the vehicle and track coupling system is divided into two parts; lower structure and upper structure. The vehicle as the upper structure