#TITLE_ALTERNATIVE#

• Main Author: SOE OO (NIM : 23109013); Tim Pembimbing : Prof. Dr. Ir. Indra Nurhadi ; Dr. Rais Zain; Dr. S, KYAW
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/16262
• Institution: Institut Teknologi Bandung

A rollover event is one of the most crucial hazards for the safety of passengers and the crew riding in a bus. The risk of injuries and fatalities in the case of rollover is many times greater as compared with any other possible bus accidents. In the past years it was observed that after such accidents the deforming body structure seriously threatens the lives of the occupants so that the bus superstructure strength has become an important issue for bus manufactures. Adequate design and sufficient strength of the bus superstructure can reduce the number of mortalities. <br /> <br /> <br /> Compliance with certain technical standards and requirements in designing and producing vehicles is essential for vehicle manufactures. In Europe, this has been addressed by the Regulation no.66 (ECE R66) for large passenger vehicles. Today the European vehicle regulation is adopted by many countries as an approval standard to prevent catastrophic consequences of rollover accidents, thereby ensuring the safety of bus passengers. It was decided to select and analyze a model of body section instead of the whole bus superstructure in the simulations, mainly focused on the criterion of minimum absorbed energy by the body section. <br /> <br /> <br /> The object of this research is to investigate the absorbed energy of bus body section in the case of rollover. This technique is intended to be used as a substitute for quasi-static loading test of body sections as an equivalent approval method defined in the Regulation ECE R66 Annex 7. A finite element method capable of dealing with elastic plastic calculation is employed to calculate deflection of a bus body section under incremental loads until the residual space is intruded by the deformed structural members. From the obtained force-deflection curve, the energy absorption capability of the deformed structure will be evaluated if it is enough to absorb potential energy resulting from rollover test. The mathematical model of bus body section is created in Autodesk Inventor Professional 2010 and analyzed in the finite element software package of ANSYS v13.0. This research study also gives an overview of finite element simulation methodology in analysis system of Static Structural using ANSYS, which adequately predicts the deformed structural behaviour and strength of bus body section in accordance with rollover test.