The transition effect between different track-foundation systems is examined from the point of view of energy that is produced during the passage of load. Analytical solution is given. A model of beam on elastic foundation with damping is used as the base model. It is developed into a model composed of two parts that represent the track-subgrade system with an abrupt change in mechanical parameters: bending stiffness, foundation stiffness, damping, and mass. Several calculations are carried out including examples of comparative calculations with the Finite Difference Model and the Finite Element Model. Transient rail deflections and energy are determined, which may serve to estimate the rate of track-subgrade deterioration.

JO - Archives of Civil Engineering L1 - http://www.journals.pan.pl/Content/83929/mainfile.pdf L2 - http://www.journals.pan.pl/Content/83929 IS - No 1 EP - 143 KW - transition effect KW - rail track modeling KW - transient analysis KW - energy approach ER - A1 - Sołkowski, J. PB - WARSAW UNIVERSITY OF TECHNOLOGY FACULTY OF CIVIL ENGINEERING COMMITTEE FOR CIVIL ENGINEERING POLISH ACADEMY OF SCIENCES JF - Archives of Civil Engineering SP - 123 T1 - The transition effect in rail tracks – assessment of transient energy for low frequency vibrations UR - http://www.journals.pan.pl/dlibra/docmetadata?id=83929