Flapwise free vibration characteristics of a rotating composite thin-walled beam under aerodynamic force and hygrothermal environment
作者： Y. Qin , X. Li , E.C. Yang , Y.H. Li
DOI: 10.1016/J.COMPSTRUCT.2016.06.057
关键词: Vibration 、 Work (physics) 、 Partial differential equation 、 Structural engineering 、 Beam (structure) 、 Orientation (geometry) 、 Materials science 、 Aerodynamic force 、 Rotational speed 、 Composite number
摘要: Abstract The flapwise free vibration characteristics of a rotating composite beam under aerodynamic force and hygrothermal environment are studied in this work. partial differential equation governing the is derived based on D’Alembert’s principle. modal problem handled utilizing assumed-modes method. effects temperature, humidity, force, rotational speed ply orientation natural frequencies damping ratios investigated. Results show that environment, have vital influences beam. more remarkable at low speed. has small great ratios.
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