Hydrostatic machine tool spindles
Name
46972141-MIT.pdf
Description
Full printable version
Size
30.9 MB
Format
Adobe PDF
Checksum (MD5)
691df78f67d7f67b2ea19306e207c070
Author(s)
Wasson, Kevin L. (Kevin Lee)
Advisor(s)
Alexander H. Slocum and John H. Lienhard, V.
Date Issued
1996
Publisher
Massachusetts Institute of Technology
Abstract
This work investigates the application of hydrostatic bearings, particularly those of the self-compensating type, to precision machine tool spindles. First, relations are developed that can be used to calculate the hydraulic resistances of various bearing land flows in tilted and untilted orientations. These relations are then applied to predicting the load carrying characteristics of several different types of hydrostatic bearings. The bearing calculations are then integrated with shaft bending calculations to predict static spindle stiffness. Relations are also presented to calculate the frictional and thermal characteristics of the bearings at high speeds. The relations developed are compared to experimental data collected on three prototype test spindles. These spindles were found to have excellent qualities that represent a significant advance in machine tool spindle technology. Finally, a design case study is presented that illustrates how the methods developed in this work may be applied to practical spindle design.
Description
Includes bibliographical references (p. 300-301).
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1996.
Subjects
Mechanical Engineering.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
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