| Title |
Optimization and experimental investigation of a single-actuation compliant morphing trailing edge for multiple aerodynamic configurations |
| Authors |
Lendraitis, Martynas ; Lukoševičius, Vaidas |
| DOI |
10.3390/act14100498 |
| Full Text |
|
| Is Part of |
Actuators.. Basel : MDPI. 2025, vol. 14, iss. 10, art. no. 498, p. 1-25.. ISSN 2076-0825 |
| Keywords [eng] |
morphing trailing edge ; flap ; compliant structure ; topology optimization ; trailing edge |
| Abstract [eng] |
This work presents a low-fidelity optimization method for a compliant morphing wing trailing-edge structure, developed to achieve multiple optimized aerodynamic shapes under combined aerodynamic and control loads using a single actuation pathway. Typically, multiple shape configurations are avoided due to conflicting structural requirements that increase optimization complexity. To address this, a parameterization method based on practical considerations of compliant trailing-edge structures is introduced. A particle swarm optimization algorithm is employed, with multi-objective criteria handled through a penalty-based approach. The algorithm is demonstrated by optimizing the trailing edge for one and two aerodynamic configurations with high accuracy, achieving typical shape deviations of 0.04% and 0.08% relative to the chord for two shapes, and as low as 0.023% for a single shape. Several compliant structures are generated, manufactured, and tested for shape accuracy, including in a wind tunnel to evaluate aerodynamic performance. Experimental investigations confirm the feasibility of achieving two aerodynamic shape configurations with a single structure and show that the proposed methodology can improve the lift-to-drag ratio of a wing section with a deflected compliant trailing edge by more than 12.4% compared to conventional flaps at the same deflection. |
| Published |
Basel : MDPI |
| Type |
Journal article |
| Language |
English |
| Publication date |
2025 |
| CC license |
|
