Design of Composite Structures for Improved Aeroelastic Performance
نویسنده
چکیده
Despite the benefits of composite structures, it is only recently that the main load bearing structures in large aircraft such as the Boeing 787 and Airbus A350 have started to be manufactured using carbon fibre composites. Even then, the unique directionality properties of composite laminates and design possibilities have yet to be exploited to improve the aircraft performance. In this study a typical composite commercial aircraft wing structure is optimised using evolutionary algorithms with the aim of improving the aeroelastic response, concentrating on gust loads. Conclusions are drawn based on the performance gains that can be achieved using aeroelastic tailoring and new design idea whilst taking into account flutter and divergence constraints.
منابع مشابه
Aeroelastic Optimization of Composite Wing Based on Improved Adaptive Genetic Algorithm
Having the constant population size and crossover/mutation probability, standard genetic algorithm (SGA) has such disadvantages as premature convergence, low stability and optimization efficiency for large design variables situation. This paper presents an improved adaptive genetic algorithm (IAGA), which adjusts the population size and the crossover/mutation probability adaptively and linearly...
متن کاملOptimum Design Ofa Helicopter Rotor for Low Vibration Using Aeroelastic Analysis and Response Surface Methods
An aeroelastic analysis based on finite elements in space and time is used to model the helicopter rotor in forward flight. The rotor blade is represented as an elastic cantilever beam undergoing flap and lag bending, elastic torsion and axial deformations. The objective of the improved design is to reduce vibratory loads at the rotor hub that are the main source of helicopter vibration. Constr...
متن کاملOptimisation of the Composite Sensorcraft Structure for Gust Alleviation
Despite the benefits of composite structures, it is only recently that the main load bearing structures in large aircraft such as the Boeing 787 and Airbus A350 have started to be manufactured using carbon fibre composites. Even then, the unique directionality properties of composite laminates have yet to be exploited to improve the aircraft performance. In this study an aluminium and composite...
متن کاملOPTIMAL PERFORMANCE-BASED SEISMIC DESIGN OF COMPOSITE BUILDING FRAMES WITH RC COLUMNS AND STEEL BEAMS
Composite RCS building frames integrate reinforced concrete columns with structural steel beams to provide an efficient solution for the design and construction of earthquake-resisting structures. In this paper, an optimization framework is developed for performance-based seismic design of planar RCS moment resisting frames. The objective functions are defined as minimizing the construction cos...
متن کاملA robust engineering approach for wind turbine blade profile aeroelastic computation
Wind turbines are important devices that extract clean energy from wind flow. The efficiency of wind turbines should be examined under various working conditions in order to estimate off-design performance. Numerous aerodynamic and structural research works have been carried out to compute aeroelastic effects on wind turbines. Most of them suffer from either the simplicity of the modelling ...
متن کامل