“…For these designs, an attractive topology of magnetic gear has been proposed by Martin (1968) and used in different studies (Atallah et al, 2008;Atallah and Howe, 2001;Rasmussen et al, 2005;Wang et al, 2009). This concentric magnetic gear architecture shown in Figure 1 potentially offers a higher performance with a high torque density and a high reliability than mechanical gearboxes (Gouda et al, 2011) and even more for high-torque applications like offshore wind turbine (of the order of a few MN m and a few MW) with only magnetic part consideration (Matt et al, 2012). However, no magneto-mechanical sizing has been done on this magnetic gear (with an approach similar than (Zavvos et al, 2011) for a wind turbine generator) and it seems to have weaknesses in terms of mechanical strength since some parts are subjected to variable radial and tangential loads from the magnetic field.…”