密閉流体中における回転弾性ディスクの流体関連不安定振動に関する実験的研究

概要

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The present paper experimentally deals with the characteristics of unstable vibrations induced in a single flexible disk rotating in a confined fluid, and visualization of the nustable vibration mode shapes. The experiment is carried out to investigate the relationships among the disk's vibrational displacement, unsteady pressure on both sides of the disk and mode shapes, and shows the following major results : (1) There are two types of unstable vibration, each of which has two or three nodal lines. (2) The two types of mode shapes of the unstable vibration travel as backward waves in the rotational direction of the disk. (3) The pressure oscillation on the narrow-gap side due to the buckling is phase-led to the rotating disk vibration.
一般社団法人日本機械学会の論文
1995-08-25