ABSTRACT
Electrification of transportation is one of the most effective means to reduce emissions. However, widespread adoption of electric vehicles faces challenges because of the limited availability of raw materials of batteries. Because of these concerns, hybrid electric technology is seen as an alternative. This paper presents the mechanical design for a rotor-bearing system of a 20 kW micro-gas-turbine-based range extender (RE). The RE has an integrated permanent magnet high-speed electric generator. Rotordynamic analysis is conducted for a rotor supported by ball bearings and squeeze film dampers (SFD). From the results, requirements for the SFD design are defined.
