高速ステップスラスト気体軸受の静・動特性 : 実験的検討

概要

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Stepped type gas film bearings have an advantage of simple structure, high load carrying capacity and stability, so the bearings are used for supporting very high speed, relatively small sized rotating machinery. This paper describes the experimental investigations into the combined effects of gas film inertia and compressibility on the static and dynamic characteristics of bearings. The minimum film thickness, friction torque, spring and damping coefficients of gas film were measured under the constant mass of stator and fixed step height for a wide range of rotational speed from 10,000 rpm to 40,000 rpm. There were good agreements between theoretical results and experimental ones and it was clarified the combined effects of gas film inertia and compressibility on the bearing characteristics.
一般社団法人日本機械学会の論文
1998-12-25