RUNNING SAFETY ESTIMATION OF KOREAN STYLE HIGH SPEED RAILWAY VEHICLE

초록

Important factor that check by running safety of railway vehicle is derailment. Derailment in railroad is very important item because connected directly to big accident. Must measure interaction force that happen between wheel and rail necessarily to secure safety that railroad can advocate by relative strong point comparing on other communication and estimate derailment coefficient. Also, rail and tie etc.. track materials that compose track by increase of train load(wheel load, lateral force) that ensue to high speed running are damaged. Together, because possibility that track irregularity grows rapidly occurs, for running safe of train in extent that destruction of track does not happen, must confirm interaction force between wheel and rail. For the safety of railway first of all we should evaluate running safety by measuring the derailment coefficient... As railway have run the decided and maintained rail, most railway do not derailed easily. This report shows the results that we performed static load test, wheelset manufacture, main line running test on the basis of the derailment theory and experience. Namely We executed main line test into more than 200km/h for estimate running safety of Korean style high speed railway vehicle. As test result, could confirm general running safety of wheel load, lateral force, derailment coefficient etc... Derailment coefficient was less than 0.6, and lateral force allowance limit and wheel load reduction ratio were enough safe.