DESAIN DAN ANALISIS STRUKTUR PENYERAP ENERGI IMPAK UNTUK APLIKASI KENDARAAN RINGAN (LIGHT RAIL TRANSIT)

• Main Author: Masli, Raynald
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik (Rekayasa, enjinering dan kegiatan berkaitan)
• Online Access: https://digilib.itb.ac.id/gdl/view/38676
• Institution: Institut Teknologi Bandung

The objective of this research is to design and analyze structural behavior and crashworthiness parameters of impact energy absorbing system which can be implemented on LRT. The structure is subjected to axial impact loading according to international regulation, UIC/EN 15227. It would be valuable in developing new lightweight vehicle structure that absorbs impact energy efficiently on loading applied. The Methodology of analysis is based on risk reduction of general buckling phenomenon on the structure, weight reduction, and performance improvement on the structural deformation, mean crushing force, peak crushing force, and structural deceleration. The crash box system is designed by using different cross sections and varying its thickness and length, then attached on the structure. The attachment is designed to improve structural efficiency to absorb impact energy based on crashworthiness principle. The analysis and design process have been applied on various structure design configurations. The validation of the crash box system has been done in two different load conditions, considering the installation of mascara structure. Design variation with ten crash boxes configuration has been chosen as the best in the subfloor structure simulation with 768,5 kN mean crushing force and 625 mm deformation, while in the structure simulation with mascara installation, eight crash boxes configuration has been selected with 917,9 kN mean crushing force and 519,6 mm deformation. The structure selected, is completely defined as an effective structure based on the improvement of structural crashworthiness parameters, is qualified in static test simulation based on international regulation UIC/EN 12663, and it could be optimized in the future work on more complex models.