Aerodynamic optimization of a high-lift system with adaptive dropped hinge flap |
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Institution: | 1. School of Aerospace Engineering, Tsinghua University, Beijing 100084, China;2. 63870 PLA Troops, Huayin 714200, China;3. Shanghai Aircraft Design and Research Institute, Shanghai 200236, China |
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Abstract: | The Adaptive Dropped Hinge Flap (ADHF) is a novel trailing edge high-lift device characterized by the integration of downward deflection spoiler and simple hinge flap, with excellent aerodynamic and mechanism performance. In this paper, aerodynamic optimization design of an ADHF high-lift system is conducted considering the mechanism performance. Shape and settings of both takeoff and landing configurations are optimized and analyzed, with considering the kinematic constraints of ADHF mechanism, and the desired optimization results were obtained after optimization. Sensitivity analysis proves the robustness of the optimal design. Comparison shows that the ADHF design has better comprehensive performance of both mechanism and aerodynamics than the conventional Fowler flap and simple hinge flap design. |
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Keywords: | Adaptive dropped hinge flap Aerodynamic design High-Lift aerodynamics Multidisciplinary optimization Optimization of aircraft design |
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