NDLI: Design of Short-Pipe Restrictor of Hydrostatic Thrust Bearings

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Nakao, Yohichi Nakatsugawa, Shota Komori, Masataka Suzuki, Kenji
Copyright Year	2012
Abstract	High stiffness hydrostatic bearings are needed in order to achieve precise motions of the machine components of ultra-precision machine tools or other precision machines. Design procedure of restrictors of hydrostatic thrust bearings, making bearing stiffness maximize under given conditions, is considered in the paper. In particular, the paper focuses on design of short pipe restrictors that are used in the hydrostatic thrust bearings in many industrial applications. Derived mathematical model predicting load capacity and stiffness of the hydrostatic bearings with short pipe restrictors are verified by compared with experimental results. Based on the derived mathematical model, an optimum condition of a ratio between the diameter and length of the short pipe restrictor is then derived. Designed short pipe restrictors are used in a water hydrostatic thrust bearing. Then the experimental results show that the bearing stiffness significantly increased. It is noted that the optimum condition of the restrictors is represented by defined non-dimensional parameters.
Starting Page	1013
Ending Page	1020
Page Count	8
File Format	PDF
ISBN	9780791845196
DOI	10.1115/IMECE2012-87306
Volume Number	Volume 3: Design, Materials and Manufacturing, Parts A, B, and C
Conference Proceedings	ASME 2012 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2012-11-09
Publisher Place	Houston, Texas, USA
Access Restriction	Subscribed
Subject Keyword	Design Machine components Water Hydrostatics Bearings Thrust bearings Stiffness Machine tools Pipes Machinery Stress
Content Type	Text
Resource Type	Article

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