ANALISIS CRASHWORTHINESS STRUKTUR COWEL
DEPAN BIG BUS PADA KECEPATAN BUS 40, 80, & 120 KM/H
DENGAN CRUMPLE ZONE MENGGUNAKAN METODE
ELEMEN HINGGA
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Institusion
INSTITUT TEKNOLOGI DIRGANTARA ADISUTJIPTO
Author
TRINANDA PUTRA, YUDHA
Subject
T Technology (General)
Datestamp
2024-06-26 08:15:54
Abstract :
This study aimed to identify the level of the crashworthiness of structural strength when there are frontal-impact collisions. According to the National Transportation Accident Commission (KNKT) there were 68.29 % of frontal impact cases occurred in 2010-2016. The simulation method of big bus front cowl simulation used FEM software (Finite Element Method) by firstly identifying the total vehicle weight, speed, and frame structure of the big bus front cowl to be designed. The front cowl big bus was tested virtually using FEM software with a big bus front dynamic cowl simulation method and input, material properties, fix constant force (combination), boundary (limit displacement), meshing, and vehicle velocity. The result of a big cowl front test simulation was the vehicle speed of 11.11 m?s simulation achived the maximum stress of 2.7887 GPa and the deformation simulation results of 3.2518x10?2 (m). The vehicle speed of 22.22 m?s simulation achived the maximum stress of 5.5905 GPa and the deformation simulation results of 6,3653x10?2 (m). The vehicle speed of 33.33 m?s simulation achived the maximum stress of 8.4879 GPa and the deformation simulation results of 9.9235x10?2 (m). The results of the simulation were after the structure of the crumple zone experiencing a collision with the pendulum, the crumple zone functioned optimally to absorb the kinetic energy that occured and protect the basic structure of the cowl from the big bus
This study aimed to identify the level of the crashworthiness of structural strength when there are frontal-impact collisions. According to the National Transportation Accident Commission (KNKT) there were 68.29 % of frontal impact cases occurred in 2010-2016. The simulation method of big bus front cowl simulation used FEM software (Finite Element Method) by firstly identifying the total vehicle weight, speed, and frame structure of the big bus front cowl to be designed. The front cowl big bus was tested virtually using FEM software with a big bus front dynamic cowl simulation method and input, material properties, fix constant force (combination), boundary (limit displacement), meshing, and vehicle velocity. The result of a big cowl front test simulation was the vehicle speed of 11.11 m?s simulation achived the maximum stress of 2.7887 GPa and the deformation simulation results of 3.2518x10?2 (m). The vehicle speed of 22.22 m?s simulation achived the maximum stress of 5.5905 GPa and the deformation simulation results of 6,3653x10?2 (m). The vehicle speed of 33.33 m?s simulation achived the maximum stress of 8.4879 GPa and the deformation simulation results of 9.9235x10?2 (m). The results of the simulation were after the structure of the crumple zone experiencing a collision with the pendulum, the crumple zone functioned optimally to absorb the kinetic energy that occured and protect the basic structure of the cowl from the big bus
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