Identification of avian flapping motion from non-volant winged dinosaurs based on modal effective mass analysis
Fig 2
Modal effective mass of Caudipteryx.
FE model of Caudipteryx by using modal effective mass illustrates that the most obvious flapping modes are occurred at the speeds of 2.50 m/s and 5.79 m/s. Y-axis is in the vertical direction and X and Z axes are in lateral directions.