Researching On The Carbon Fiber Flexible Skin With Sensing And Driving Function

One of development directions of future aircrafts is morphing wing. Flexible in deformation direction and stiff in the direction perpendicular to the deformation direction are essential to get smooth large deformation and withstanding large aerodynamic loads. Corrugated-form is very flexible in the corrugation (longitudinal) direction and show enough resistance against bending loads in the direction (transverse) perpendicular to the corrugation. So, corrugated-form is expected to be a candidate to develop skin of morphing wings. In this investigation, research focus was put on the corrugated-form composites, And made the preliminary exploration to the intelligence structure of driver and sensor in one.This paper explored the feasibility of corrugated carbon fiber reinforced composite made as the morphing wings,Deduced the density of reinforced composite, the percentage each phase takes, content of pore in reinforced composite and the calculation formula of materials tensile elastic modulus,researched the longitudinal strain capacity and the transverse carrying capacity, and laid a foundation for further study. According to the analysis of experimental data, based on the theoretical model of composite, we can get a theoretical tensile curve of specimen and the theoretical deflection curves on 3-point bending load bending, then compared them with experimental data respectively. The results of analysis show that the content of the pore in composite is less than 1%,which proved the effectiveness of the specimen; the error between experimental value of Elastic modulus and theoretical value is about 5%, This structure has better longitudinal strain capacity and the transverse carrying capacity, In the elastic deformation section, theoretical curve and test curve fit basically, error is less than 10%, which proved that the corrugated carbon fiber reinforced composite made as the Variant wings is feasible.on that basis, this paper made preliminary exploration to the corrugated carbon fiber reinforced composite intelligence structure, researched the manufacturing engineering of SMA wires driver and FOS in one, and made preliminary exploration to the drive mode of driver, which set up the foundation for further improving its intelligent function.