DYNAMIC RESPONSE OF PASSENGER TRAIN COLLISION

• Main Author: Ichsanudin, Muhammad
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/46918
• Institution: Institut Teknologi Bandung

The condition of Indonesian railways that still has many single track, the possibility of collision between passenger trains is high enough. In this research, dynamic response analysis is carried out in the case of collisions between passenger trainset on a flat straight rail without braking at a relative speed of 10 m/s both in front-end and rear-end collision scenarios to obtain force and acceleration responses during collision and the failure mode that occurs with multibody dynamic using Universal Mechanism perangkat lunak. Besides, an analysis was made about the possibility of a collision based on accident data from the National Transportation Safety Committee (NTSC) and the consequences of a collision based on the acceleration of the colliding train according to EN 15227: 2008 criteria. Based on simulation and analysis, colliding trains experienced failure mode of sawtooth buckle both in front-end and rear-end collision scenarios. The locomotive interface force in the front-end collision scenario has a peak force of 8 MN for 60 ms, while the peak force of interface force between the locomotive and the coach car in the rear-end collision case is 4.4 MN for 100 ms. The force between trains that occur in the case of front-end collision and rear-end collision has an average magnitude above the strength of the coach car structure of 1.3 MN so it has the potential to deform coach car structures plastically, because it has exceeded the yield strength of the train material. In the front-end collision scenario, almost all cars have high level of consequences in average with acceleration above 5g except for the KP, K3 and K4. In the rear-end collision scenario, trains in the colliding trainset have acceleration above 5g only experienced by K9, while trains in the collided trainset, almost all trains accelerate above 5g except for K2, KP, and K3, so the consequences of trainset being collided are greater rather than colliding trainset. It can be concluded that the risk of a train collision in the front-end collision scenario is greater than the rear-end collision scenario because the total number of cars that have acceleration above 5g is more than in the front-end collision.