Parameter optimization of a light aircraft wing made of the polymer composite material and analysis of the possible appearing defects. Part I. Computation of the optimal structural and power scheme

The paper considers problems in design and development of a rational structural and power scheme for the light sports aircraft wing based on the parametric optimization. The testing object is the Piper PA-28 aircraft wing. The paper propose an algorithm to determine operational loads acting on the wing, and select options of the structural-force schemes for a wing made of the polymer composite materials with the subsequent optimization. It studies possible areas of defects and micro-cracks in the wing structural and power scheme taking into account the polymer composite materials anisotropy and its reinforcement schemes. To increase weight efficiency of the wing structural and power scheme, the problem of optimizing laying schemes of the polymer composite materials monolayer is solved. Numerical simulation is carried out using the finite element method in a commercial software product. The paper determines rational geometric parameters and reinforcement angles for the wing structural and power scheme exposed to the operational loads action.
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