離散力学的概念によるストールギャロッピングフラッタ-現象の数値解析法の-提案

抄録

Dynamic bifurcation analysis for the nonlinear oscillation on a simple aeroelastic structure is presented. This structure is the cantilever beam on the flow and it has a nonlinear system without potential energy system. It shows as complex behavior on the flutter problem caused by a parameter of controlled velocity. We observe the flutter behavior through the experiment of the flow, and try to compute the its motion on the simple model based on the discrete dynamic concept. We can readily find the focusing solution on the simple system, which is possible to obtain the map of the complex solutions on the flutter.