Design and thermomechanical study of the case of a small solid rocket motor of small dimensions
Correu electrònic de l'autorjancanetvidalgmail.com
Tipus de documentTreball Final de Grau
Data2022-07-21
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 4.0 Internacional
Abstract
In this thesis a solid propellant rocket motor capable of propelling a small scale rocket called Phobos up to a height of 3 km in the framework of the European EuRoC (European Rocketry Challenge) competition has been designed. The aim of the thesis was also to design an engine that was cheaper and accessible to groups of students such as the UPCSP (UPC Space Program), compared to the commercial engines used. In this sense, on the one hand, an internal ballistics code has been carried out, using Matlab, to evaluate the operation of the motor, the thrust and chamber pressure curves, and, on the other hand, a thermomechanical study of a 2D axisymmetric section of the structure has been developed to assess how temperature affects the structural integrity of components. The characterization of the combustion process has been carried out through the ProPEP 3 program (Propellant Performance Evaluation Program), while the flight simulation of the rocket to determine the maximum altitude reached has been carried out using the OpenRocket software. In terms of price, a budget for the estimated cost of manufacturing the motor has also been provided. The results obtained indicate that in order to reach the desired altitude, given the geometric restrictions of the case, high-performance fuels such as APCP (Ammonium Perchlorate Composite Propellant) should be used. The results also show that as a result of the high temperatures reached in the throat of the nozzle, the materials to be used to form this component must have a high melting point and a higher thermal conductivity than steel, while maintaining limit strengths similar to the latter.
MatèriesThermodynamics, Rocket engines -- Design and construction, Termodinàmica, Coets (Aeronàutica) -- Motors -- Disseny i construcció
TitulacióGRAU EN ENGINYERIA EN TECNOLOGIES AEROESPACIALS (Pla 2010)
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Budget_JanCanet.pdf | 357,9Kb | Visualitza/Obre | ||
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Technical_Sheets_JanCanet.pdf | 320,8Kb | Visualitza/Obre |