3834 流体騒音を誘起するポリゴンミラーの流れ構造に与えるレイノルズ数の影響(J15-4 流体関連の騒音と振動(4)-機器・設備-,J15 流体関連の騒音と振動,2005年度年次大会)

概要

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A polygon mirror is one of the important optical scanning components. It has the serious problems related to the fluid dynamical factor around the polygon mirror such as high frequency noise and jittering of the mirror under high rotating speed condition. In this study, the transition of the flow structure from low Reynolds number to high Reynolds number was investigated with a Particle Image Velocimetry and a Laser Doppler Velocimetry measurement. As the results, each corner of the rotating polygon mirror induces the three-dimensional stable twin vortex tubes at the low Reynolds number. These vortex tubes interact with each other and generate a complicated flow structure with increasing Reynolds number.
社団法人日本機械学会の論文
2005-09-18