Testing of a Composite Blade

The research presented in this paper focuses on the investigation of helicopter composite blade. The object of tests is a blade from main rotor of the IS-2 helicopter. The author describes briefly basic elements of composite blade manufactured at the Institute of Aviation in Warsaw. The composite blade was investigated by the Experimental Modal Analysis (EMA) to evaluate dynamic properties of tested structure. Based on the experimental data collection, dynamic properties of a research object were estimated. The modal parameters have been estimated using PolyMAX - module of LMS Test.Lab software.