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Information × Registration Number 0207U008980, 0107U007854 , R & D reports Title Development of methodological apparatus for predicting dynamic stability and increasing aerodynamic damping to extend the service life of structural elements of machines and power equipment subjected to the action of a flow. popup.stage_title Head Zinkovskyy Anatoliy Pavlovich., Registration Date 26-12-2007 Organization Institute for problems of strength NASci of Ukraine popup.description2 Current methods of simulating the aeroelasticity phenomena and main relationships characterizing the aerodynamic damping of vibtations of bodies in the flow are analyzed. A set of basic similarity criteria was formulated to model the phenomena of unsteady aerodynamics and aeroelasticity, and ranges of self-similarity were established. Criterion equations were derived to chose parameters for the model of the objects under investigation, their vibrations, and flow coditions. The key components of the developed procedure for determining unsteady aerodynamic and hydrodynamic forces and moments include a justified simulation of unsteady flow around vibrating bodies and assessment of parameters of a test rig.The central principles of the developed procedures for predicting the dynamic stability and improving the aerodynamic and hydrodynamic damping of structural elements of machines interacting with the flow were formulated and the results of their validation by assessing the stability limit against subsonic flutter for compressor blade rows of present-day gas turbine engines are presented.5635 Product Description popup.authors popup.nrat_date 2020-04-02 Close