El patrimonio histórico de Agustín Betancourtanálisis de las aportaciones a la ingeniería civil mediante técnicas CAD/CAE

Zusammenfassung

The present doctoral thesis develops an innovating and original research about some of the most important contributions of Agustín de Betancourt y Molina related to civil engineering from the point of view of engineering graphics. Its content is divided into the following chapters: Chapter 1 shows an approach to the person and work of the outstanding Spanish engineer. There is a short journey through his biography, focusing on his education, on the people who influenced him and on the main works he carried out. Also, a special effort has been made to order its scientific and technical work chronologically, underlining those whose contribution to civil engineering has been important. Chapter 2 focuses on exposing the materials and the theoretical framework of the methodology applied to achieve the objectives of the doctoral thesis. Firstly, the process of computer-aided design of any invention linked to the technical historical heritage, from the starting material to the 3D CAD model has been detailed, using Autodesk Inventor Professional 2016 software and Autodesk Inventor Studio animation tool. Secondly, the process for 3D printing of the models studied using additive manufacturing techniques has been described. And third, the process of computer-aided engineering (CAE) analysis has been described in order to perform the static analysis of each of the historical inventions, using the finite element method. Chapter 3 presents the results obtained by applying the methodology described in chapter 2 on the five most notable contributions of Agustín de Betancourt y Molina related to civil engineering: the wind machine for draining marshy ground, the machine for cutting cane and other aquatic plants in navigable waterways, the hydraulic drive mill for flint milling, the plunger lock and the mechanical dredger in the Port of Kronstadt. The independent study of each invention has made possible to obtain an assembled and functional 3D model, as well as 3D printing and a complete study of von Mises stresses, displacements, deformations, and safety coefficient. Thus, from these results some conclusions have been obtained from the point of view of mechanical and construction engineering. Finally, Chapter 4 presents the general and particular conclusions and possible future works that arise from the present doctoral thesis. The general conclusions point to the relevance of the work of Agustín de Betancourt y Molina in the engineering of the time and in the current engineering, as well as the convenience and limitations of the methodology followed in the study of the historical inventions. On the other hand, the particular conclusions emphasize the specific contributions to engineering made by each one of the inventions, and at last, three lines of research are proposed for additional studies in the field of technical historical heritage