A Review of Research on Blade Dry Friction Damping Technology
It has been widely concerned that using dry friction damper to suppress gas turbine blade vi-bration by domestic and foreign scholars.In this paper,the techniques of blade dry friction damping are reviewed in detail from the aspects of establishing dynamic model,solving the steady state response of nonlinear vibration and damping test,the research status of dry friction damping technology in theoretical calculation and experimental design is summarized,the influencing factors of dry friction damping are an-alyzed,and the technical difficulties of dry friction damping technology are put forward.Finally,the new ideas and methods of damping technology abroad are summarized,the application prospect and develop-ment direction of blade dry friction damping technology in the future are discussed.
bladedampingnonlinear frictionharmonic balance methodexcitation vibration test
NETL
NSTL
万方数据
