Pemodelan dan Analisis Propulsi Roket Peluncur Wahana Antariksa Berbasis 3D Printing dan Software OpenRocket

Abstract

Spacecraft launch vehicles are vehicles designed to transport payloads such as satellites, spacecraft, or astronauts from the Earth's surface into space. Openrocket software is one of the software programs that can be used to design and simulate rocket launches. This study aims to determine the basic propulsion characteristics of rockets in terms of altitude, thrust, and vertical velocity of rockets designed using OpenRocket software. This study was conducted by creating ten rocket models with variations in fin shape using OpenRocket software and then simulating them. Based on the simulation results and analysis, rocket model number eight was considered the most superior model among the other rocket models. This can be seen from the fact that rocket model number eight had the highest maximum acceleration (12784 m/s2), reached an altitude of 407 m, and had a fairly long flight time (30.1 s). The fin shape of rocket model number eight was able to maximize thrust and flight stability without losing vertical velocity and produced the best performance from the data generated.