Projeto de um VSB-30 lançador de CubeSat

Abstract

This work aims to study the Brazilian sounding rocket VSB-30 in order to modify it to make it capable of launching a CubeSat in low Earth orbit. Rockets from similar missions were sought to make a comparison with two versions of the VSB-30, one with an added stage and the other with three optimized stages. The rocket found that is most similar in terms of size and mission is the SS-520-5, made in Japan, and the result of the analysis showed that the current configuration of the first two stages of the VSB 30 is not suitable for a launch rocket. An estimate of the mass of a liquid propellant engine was performed to replace the 400kg payload module of the original VSB-30, thus the total V of the rocket can reach 9; 523km=s only with a third stage mass of 584; 3kg. The flight simulation of the modified VSB-30 was carried out, and the orbit achieved was 278km 433km.