As part of a bachelor’s thesis, load assumption analysis was performed for reduction gearbox of an electrically driven propeller propulsion system. Based on operational parameters, we determined sources of loads. All determinations were made according to relevant certification documents concerning airship design. 168 different load cases were determined, from which those representing the critical operation of the drive system were excluded, with regard to the individual components of the gearbox. The results of the analysis are presented in a way that allows easy detailed sizing of components without in-depth knowledge of how the system works. As part of the analysis, it was discovered that belt system represents the main source of loads, influenced by the required static preload of the timing belts.
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