タケダ　マサカズ   Masakazu Takeda   武田　真和    所属   追手門学院大学  理工学部 機械工学科    職種   講師
発表年月日	2017
発表テーマ	空気圧で浮上する平板の動的安定性:（チャンバ体積とスリット幅が自励振動の発生条件に及ぼす影響）
会議名	Dynamics & Design Conference
学会区分	全国学会
発表形式	口頭（一般）
発表者・共同発表者	武田 真和,水島 尚,渡辺 昌宏
概要	This paper presents experiments and an analysis on the self-excited vibration of a plate supported by air pressure. The unsteady fluid force acting on the plate is calculated based on the basic equation of two dimensional gap flow between the plate and a chamber surface. The effect of air compressibility in the chamber is taken into consideration in the basic equation. The system's characteristic equation is derived from the plate motion coupled with the unsteady fluid force acting on the plate. The influence of slit width and chamber volume on the unstable condition of the self-excited vibration is clarified comparing the analytical result with experiments. Lastly, the local work done by the unsteady fluid force acting on the plate (bottom surface) is shown, and the influence of slit width on the unsteady fluid force is discussed.
researchmap用URL	http://ci.nii.ac.jp/naid/130006551399