Analysis and Optimization of Base Frame Structure of Kereta Kapsul using Finite Element Method and Genetic Algorithm Optimization

• Main Author: HALOMOAN KRISTIAN (NIM : 13114005), ANDRE
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/25533
• Institution: Institut Teknologi Bandung

<p align="justify">Kereta Kapsul is one of product developed by PT. TREKKA which is now in the preliminary design phase. Reference model (modification of the initial design of Kereta Kapsul) produce Base Frame model with a mass of 1103 kg. The model has safety factor of 2.7 under vertical loading and 2.3 under longitudinal compression loading. Vertical deformation is 8.4 mm and longitudinal deformation is 2.1 mm. <br /> <br /> This final project aims to analyze the Base Frame structural stress of the Kereta Kapsul then optimizing the Base Frame’s mass under loading cases based on Regulation of the Minister of Transport No. 175 of 2015 and the American Society of Civil Engineers 21.2 2008. Analysis is done with finite element method and genetic algorithm optimization method provided by Ansys software. <br /> <br /> Objective function of this optimization process is minimize mass of Kereta Kapsul’s Base Frame. Variable design is hole diameter of Side Shield and Front/Back Shield. General constraints are safety factor and vertical deformation of Base Frame. Side constraints are range of hole diameter, spacing between hole center, and total of hole on the Side Shield and Front/Back Shield. <br /> <br /> Optimization produce Base Frame model with a mass of 1074 kg. safety factor is 2,4 under vertical loading. Safety factor is 1,8 under longitudinal compression loading. Vertical deformation is 9.66 mm and longitudinal deformation is 5,27 mm.<p align="justify">