Aplikace hliníkových slitin při konstrukci samonosného bateriového boxu pro elektromobily

Abstract

This dissertation deals with the application of aluminium alloys in the construction of a self-supporting bonded and riveted battery box for electric vehicles. The introductory part of the thesis is devoted to a state-of-the-art summary that describes the current technologies and materials used for the construction of battery boxes. It also describes the reasons why the proportion of aluminium alloys in vehicles needs to be increased. This fact is also reflected in the stated objectives of the dissertation, which focus on the appropriate choice of aluminium alloys for the different operating load conditions for the different structural nodes of the battery box. This is related to the selection of appropriate joining technologies. These designs are then elaborated in the solution methodology and the structural design of the battery box is presented. Methods for continuous modal and strength analyses of the structural design are also described. The fabrication of the test boxes is discussed and the method of verifying their structural properties is described. The knowledge gained was then transferred to the prototype production of the whole chassis platform, whose properties were then verified by instrumented driving tests. The dissertation concludes with an evaluation of the results obtained in the experimental part of the work and recommendations for further research and development in the field of custom battery box development.