PREDIKSI UMUR KELELAHAN STRUKTUR KERETA API CEPAT DENGAN PERTIMBANGAN KUALITAS REL

• Main Author: Kristo Subiakto, Yehuda
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/73236
• Institution: Institut Teknologi Bandung

<p align="justify"> In the development of high-speed train, its structure safety must be guaranteed. Predicting fatigue life of its structure is one of the important things to do. On this study, calculation and simulation of the high-speed train against the static and dynamic load it experiences is carried out using ABAQUS software. Japanese Industrial Standard E 7105:2006 will be the guideline to do the static load simulation. The dynamic load simulation on the train is done using acceleration data obtained from the multibody dynamic simulation while the train runs on the track with inclusion of the track irregularity using Universal Mechanism software. To calculate fatigue life of the high-speed trains structures, the simulation is varied with rail quality, UIC (international) rail regulations and ERRI (European) rail regulations, time sampling, and the speed of the high-speed train. One of the fatigue life predictions obtained was 93 trips for 220 ????????/? using UIC regulation with high rail quality at the door near the engine. The research shows that on poor rail quality, the life of the high-speed trains structures will be decreased, on both regulations, UIC (68.8% at the door near the engine) and ERRI (47.8% at the door near the engine). As for the same quality, the load on the UIC regulation gives a shorter fatigue life than the regulated on the ERRI regulation (66.1% at the door near the engine). The study also showed that the larger the amount of time sample used, the fatigue life of the high-speed trains structures becomes shorter (92.9% from ????=13 to ????=1 at the passenger window). For the use of the same regulation and rail quality, the higher speed of the high-speed train generally provides shorter fatigue life (78.9% at the passenger window). However, at critical points experiencing relatively similar stress range, fatigue life of the high-speed trains structures will be increased (12% at the door near the engine).