735 昆虫静止飛行の運動モードと時間応答の解析(J02-5 生物の機能/運動/機構/模倣(5),ジョイントセッション,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

概要

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A numerical study of dynamic flight stability of a hovering hawkmoth and fruitfly are presented, respectively. The method of computational fluid dynamics (CFD) is used to compute the aerodynamic derivatives of the aerodynamic forces and pitching moment in response with a series of small disturbances and the techniques of eigenvalue and eigenvector analysis is used for solving the equations of motion. In the longitudinal disturbance motion, three natural modes are identified which indicates that a hawkmoth hovering flight is stable, while a fruitfly hovering flight is unstable. In addition, the time-response analysis of the simulation is shown here, which indicates the trajectory of the disturbance values in respect of time.
社団法人日本機械学会の論文
2008-08-02