Dynamic modelling and torque ripple minimization of a lightweight ultra-high transmission ratio harmonic driveEfstratios Tsolakis, Georgios Vasileiou, Nikolaos Rogkas, Christos Kalligeros, Pavlos Zalimidis and Vasilios SpitasMATEC Web Conf., 317 (2020) 01007DOI: https://doi.org/10.1051/matecconf/202031701007