author = "Mota, F{\'a}bio Ant{\^o}nio da Silva and Nivaldo, Hinckel 
                         Jos{\'e} and Rocco, Evandro Marconi and Schlingloff, Hanfried",
          affiliation = "{Universidade Federal do ABC (UFABC)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Ostbayerische Technische Hochschule 
                title = "Trajectory optimization of launch vehicles using object-oriented 
              journal = "Journal of Aerospace Technology and Management",
                 year = "2018",
               volume = "10",
                pages = "e3918",
             keywords = "Launch vehicle, Trajectory, Optimization, Object-oriented 
             abstract = "The aim of this study is to model launch vehicles with focus on 
                         3-DOF trajectory optimization using a modular approach. Despite 
                         the large number of operational launch vehicles, they usually 
                         consist of basic components and subsystems. In other words, a 
                         launch vehicle is an assembly of stages, which in turn is divided 
                         into propellant system and engine, and the engine is an assembly 
                         of basic components such as pumps, turbines, combustion chamber, 
                         and nozzle. To allow future extension and reuse of the codes, a 
                         modular structure using object-oriented programming is used. Two 
                         formulations of state equations of the trajectory and two 
                         optimization methods are described. The launch vehicle performance 
                         will be measured by payload mass for a given mission. The 
                         simulations of the VLS-1, Ariane 5 and VLS-Alfa were performed and 
                         showed good agreement with the literature.",
                 issn = "1984-9648",
             language = "en",
           targetfile = "mota_trajectory.pdf",
        urlaccessdate = "29 nov. 2020"