すきまと外部をカップリングした高浮上ヘッドスライダ周り流れのナビエ・ストークス解析(機械要素,潤滑,工作,生産管理など)

概要

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The high-spacing flying head slider is expected to be a hopeful mechanism used for the next generation of the optical disc system. Load capacity of a low-spacing head slider has been evaluated by analysis using Reynolds equation, which gives a good approximation of pressure distribution in the fluid film. However, for a high-spacing flying head slider, the conventional method is not adequate because inner-outer flow interference is not negligible in the case of a large bearing number. Furthermore, fluid force oscillation caused by unsteadiness of the outer-flow cannot be analyzed by the conventional method. In this study, an incompressible Navier-Stokes solver is applied to a flow around a high-spacing flying head slider, and fully coupled solutions of the inner and outer flows are obtained. Fluid Force on the slider is estimated and the influence of the outer flow is discussed. It is demonstrated that the present method provides useful information for the suspension design.
社団法人日本機械学会の論文
2001-12-25