Percorrer por autor "Ferreira, Leonardo Rodrigo Sousa"
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- Weight Estimation of a Twin-body Liquid Hydrogen Airliner “Gondola”Publication . Ferreira, Leonardo Rodrigo Sousa; Magalhães, Leandro Barbosa; Nangia, Raj; Silva, André Rodrigues Resende daThe following dissertation addresses the use of hydrogen in the aeronautical sector, presenting the environmental objectives intended to be achieved and disseminating the scientific history regarding the emergence of new aircraft concepts or the adaptation of existing ones. Of the proposed configurations, this work is dedicated to the new concept of a doublefuselage asymmetrical aircraft powered by liquid hydrogen—the “Gondola” Airliner. In this document, a preliminary study estimates the mass of this new configuration, highlighting the precision of Torenbeek’s method used to calculate the mass of the “Gondola” fuselage and the application of Breguet’s range equation for the required fuel valuation. Having estimated the mass of the novel configuration, its longitudinal mass distribution was compared with the equivalent Airbus model, the A320, following the longitudinal segmentation method proposed in the A320 weight and balance manual. Considering that hydrogen is not stored in the aircraft’s wings and that its tanks significantly contribute to the weight of the new configuration, the longitudinal mass distribution of the two aircraft, while having a similar profile, primarily differs in the regions where the hydrogen tanks are located. Posteriorly, once the required fuel estimate was reached and considering the scalability of the aircraft structure for other flight missions, the main task of this work was executed, which is related to the three-dimensional preliminary design of the new aircraft model, using the Catia V5 software. The creation of 3D models of the new configuration and the A320 aims at a future aerodynamic comparison study, using a CFD tool.