Perpustakaan Digital ITB

The advanced flapping mechanisms of birds and insects have inspired the creation of bioinspired Micro Aerial Vehicles (MAVs). Despite progress in replicating their wing kinematics, artificial MAVs still fall short compared to their natural counterparts refined over millions of years of evolution. Further exploration of wing kinematics and aerodynamic investigations is essential for enhancing MAV design. This thesis presents an optimisation study of 3D flapping wing kinematics under hovering conditions, aiming to find the optimal kinematics that maximise lift and examine their impact on lift production. The NNPEHGP model predicts the black-box function of the wing model’s kinematics parameters and the time-averaged lift coefficient (CL). Optimisation focuses on two kinematics parameters: rotational timing and rotational duration. The analysis shows that peak lift happens when the wing undergoes delayed rotation, but advanced rotation provides more consistent performance across various rotational durations, indicating a trade-off between peak performance and robustness. The analysis of rotational duration indicates its minor influence compared to rotational timing but becomes more significant when rotational timing involves delayed rotation or positive values. Furthermore, it is found that three-dimensionality and motion models affect wing lift production.