Publicación: Redes de petri aplicadas na análise de algoritmo de purga para ensaio de motor-foguete com propelente líquido
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2022
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info:eu-repo/semantics/openAccess
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['Universidad Nacional de Educación a Distancia (España)', 'Universidad Politécnica de Madrid. Departamento de Ingeniería Mecánica']
Resumen
Em fase anterior ao voo, são realizados ensaios instrumentados em solo para comprovar a capacidade operacional de motor-foguete a propelente líquido. A tarefa de elaborar projeto para Banco de Ensaios desse tipo de unidade propulsora é complexa e envolve várias etapas, sendo que uma dessas etapas está relacionada com a análise da capacidade desse banco em atender os algoritmos para a execução completa de ensaios, a qual é considerada fundamental para o êxito operacional desse projeto. Decorrente dos elevados custos envolvidos na elaboração e execução desse projeto, é estratégico utilizar recursos computacionais para avaliar por simulação as principais funcionalidades operacionais que são previamente estabelecidas para esse banco possuir. Nesse contexto, este trabalho apresenta uma proposta de modelo por meio das Redes de Petri para avaliar, por simulação computacional, a capacidade de uma arquitetura que foi idealizada para Banco de Ensaios em atender um algoritmo dedicado à purga dos dutos de propelente líquido durante a realização de ensaios com o motor-foguete. O método utilizado para realizar a simulação mostra a resposta operacional de cada módulo dessa arquitetura, em conformidade com os passos contidos no algoritmo de purga, o que permite analisar para cada evento as propriedades das Redes de Petri, principalmente, aquelas que estão relacionadas com a conservação, a vivacidade e os conflitos do tipo mortal e confusão. Os resultados satisfatórios obtidos nessas simulações sugerem que os módulos previstos para essa arquitetura são suficientes e apropriados para realizarem todos os passos contidos no algoritmo de purga, o que minimizará ou eliminará os transtornos que podem ser causados pela presença de elementos estranhos nas linhas de suprimento de propelente, durante a realização dos ensaios com o motor-foguete.
In the phase prior to the flight, instrumented tests are carried out on the ground to prove the operational capacity of a liquid propellant rocket engine. The task of elaborating a project for a Test Bench of this type of propulsion unit is complex and involves several steps, one of which is related to the analysis of the capacity of this bench to meet the algorithms for the complete execution of tests, which is considered fundamental to the operational success of this project. Due to the high costs involved in the elaboration and execution of this project, it is strategic to use computational resources to evaluate by simulation the main operational functionalities that are previously established for this bench ful fill. In this context, this work presents a model proposal using Petri Nets to evaluate, by computer simulation, the ability of an architecture that was idealized for the Test Bench to meet an algorithm dedicated to the purge of liquid propellant ducts during the realization of tests with the rocket engine. The method used to perform the simulation shows the operational response of each module of this architecture, in accordance with the steps contained in the purge algorithm, which allows the analysis of the properties of the Petri Nets for each event, especially those related to the conservation, vivacity, and mortal-type conflicts and confusion. The satisfactory results obtained in these simulations suggest that the modules foreseen for this architecture are sufficient and appropriate to carry out all the steps contained in the purge algorithm, which will minimize or eliminate the inconveniences those can be caused by the presence of foreign elements in the supply lines of propellant during the tests with the rocket engine
In the phase prior to the flight, instrumented tests are carried out on the ground to prove the operational capacity of a liquid propellant rocket engine. The task of elaborating a project for a Test Bench of this type of propulsion unit is complex and involves several steps, one of which is related to the analysis of the capacity of this bench to meet the algorithms for the complete execution of tests, which is considered fundamental to the operational success of this project. Due to the high costs involved in the elaboration and execution of this project, it is strategic to use computational resources to evaluate by simulation the main operational functionalities that are previously established for this bench ful fill. In this context, this work presents a model proposal using Petri Nets to evaluate, by computer simulation, the ability of an architecture that was idealized for the Test Bench to meet an algorithm dedicated to the purge of liquid propellant ducts during the realization of tests with the rocket engine. The method used to perform the simulation shows the operational response of each module of this architecture, in accordance with the steps contained in the purge algorithm, which allows the analysis of the properties of the Petri Nets for each event, especially those related to the conservation, vivacity, and mortal-type conflicts and confusion. The satisfactory results obtained in these simulations suggest that the modules foreseen for this architecture are sufficient and appropriate to carry out all the steps contained in the purge algorithm, which will minimize or eliminate the inconveniences those can be caused by the presence of foreign elements in the supply lines of propellant during the tests with the rocket engine
Descripción
Categorías UNESCO
Palabras clave
Redes de Petri, Algoritmo de Purga, Motor Foguete, Propelente Líquido
Citación
Centro
E.T.S. de Ingenieros Industriales
Departamento
Mecánica