Methodology for Composite Blades Testing: From UAVs to Mega-Large Structures

Abstract

The use of composite rotor blades in the domains of micro-aircraft, aircraft for the transport of goods and passengers, for military purposes, as well as in the domain of wind turbines represents one of the most significant aspects in the problems of aerodynamics and energy efficiency, especially from the aspect of safety. The real use of composite blades whose traction-dynamic, lift, and thrust dynamic characteristics in real conditions of exploitation are directly dependent on complex loads of a static and dynamic nature requires a comprehensive laboratory analysis according to appropriate methodological principles. This chapter presents the results of multi-decade research aimed at identifying and verifying a unique methodology for testing composite blades on examples of UAV blades, blades exposed to extreme conditions of exploitation, as well as blades used for electricity generation. It is interesting to note that the methodology, regardless of the dimensions of the blades and their purpose, is practically applicable to all cases of blade use in the earth’s atmosphere, where obtained test results realistically describe the complex behavior of the blades in real exploitation conditions.