The Flexure-Torsion Flutter of Aerofoils in Cascade : 1st Report, Computation and Experiment of Unsteady Aerodynamic Derivatives

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概要

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• Theoretical and experimental investigation of"the flexure-torsion flutter of aerofoils in cascade"are presented. In this first report are shown a computational method and computed results of unsteady lift, drag and moment acting on the vibrating aerofoils in cascade, and some experimental results of these unsteady aerodynamic forces and moment. In computation are included the effects of stagger angle, solidity, attack angle (or steady circulation), inter-blade phase angle of vibration and camber of blade (or distribution of steady circulation). Each aerofoil constituting the cascade is considered to have two degrees of freedom of translational vibration (not necessarily normal to blade chord) and torsional vibration about elastic axis. Agreements between computational and experimental results are satisfactory. The effects of cascade parameters on critical flutter speed of binary flutter analyzed using the aerodynamic derivatives developed in this 1st report are shown in the 2nd report.

• 一般社団法人日本機械学会の論文

著者

• Tanaka Hideo

  Institute Of Life Science And Bioengineering Graduate School Of Life And Environmental Science Unive

• Hanamura Yoji

  Institute Of Space And Aeronautical Science University Of Tokyo

• Hanamura Yoji

  Institue Of Interdisciplinary Research Faculty Of Engineering University Of Tokyo

• Tanaka Hideo

  Institute For Biological Resources And Functions National Institute Of Advanced Industrial Science A

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