000021923 001__ 21923
000021923 005__ 20170622131311.0
000021923 04107 $$aeng
000021923 046__ $$k2017-06-15
000021923 100__ $$aZhou, Guangxin
000021923 24500 $$aAN IMPROVED VEHICLE-TRACK COUPLING MODEL FOR THE PREDICTION OF HIGH-SPEED TRAIN-INDUCED VIBRATION

000021923 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021923 260__ $$bNational Technical University of Athens, 2017
000021923 506__ $$arestricted
000021923 520__ $$2eng$$aMassive high-speed railways have been constructed and put into operation over the past several decades. Accordingly, the long-term performance of high-speed railways, especially those in soft soil regions, has attracted increasing attention. It’s crucial to investigate the dynamic responses of the vehicle-track-ground coupling system. To overcome the disadvantages of existing theoretical models, which are simplified and consequently cannot well reflect real dynamic responses, a novel two-half vehicle theoretical model is proposed in the paper on the basis of vehicle-track coupling dynamics. The new model accounts for both the interaction between adjacent vehicles via connecting devices and the superposition effect of wheel-rail forces at adjacent wheel sets. As a result, in the case of short-wave irregularity of the track, more accurate wheel-rail forces can be obtained from this model. In addition, with fewer degrees of freedom, this model can take into account several vehicles simultaneously. The wheel-rail forces obtained from this model can thus be a better excitation for the three dimensional finite element model of track-ground coupled system to investigate the system dynamic responses.

000021923 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021923 653__ $$aHigh-speed Railways, Coupling System, Dynamic Response, Two-half Vehicle Model.

000021923 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021923 720__ $$aZhou, Guangxin$$iChen, Jin$$iZhou, Ying
000021923 8560_ $$ffischerc@itam.cas.cz
000021923 8564_ $$s477836$$uhttps://invenio.itam.cas.cz/record/21923/files/18334.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS21] Ground-borne noise and vibrations due to traffic: prediction and mitigation
.
000021923 962__ $$r21500
000021923 980__ $$aPAPER