Analytical Solution of Hydrostatic Pocket Tilting

Eduard Stach; Jiří Falta; Matěj Sulitka

doi:10.4028/www.scientific.net/AMM.821.113

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 821Analytical Solution of Hydrostatic Pocket Tilting

Analytical Solution of Hydrostatic Pocket Tilting

Abstract:

Tilting (parallelism error) of guiding surfaces may cause reduction of load capacity of hydrostatic (HS) guideways and bearings in machine tools (MT). Using coupled finite element (FE) computational models of MT structures, it is nowadays possible to determine the extent of guiding surfaces deformation caused by thermal effects, gravitational force, cutting forces and inertia effects. Assessment of maximum allowable tilt has so far been based merely on experience. The paper presents a detailed model developed for description of the effect of HS bearing tilt on the load capacity characteristics of HS guideways. The model allows an evaluation of the tilt influence on the change of the characteristics as well as determination of the limit values of allowable tilt in interaction with compliant machine tool structure. The proposed model is based on the model of flow over the land of the HS pocket under extended Navier-Stokes equation. The model is verified using an experimental test rig.

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Periodical:

Applied Mechanics and Materials (Volume 821)

Pages:

113-119

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.821.113

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Online since:

January 2016

Authors:

Eduard Stach*, Jiří Falta, Matěj Sulitka

Keywords:

Bearing, Guideway, Hydrostatic, Pocket, Tilt

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References

[1] W. B. Rowe, Hydrostatic, Aerostatic and Hybrid Bearing Design, Elsevier, Waltham, (2012).

Google Scholar

[2] M. Weck, Ch. Brecher, Werkzeugmaschinen Konstruktion und Berechnung, Springer, (2006).

Google Scholar

[3] R. Schoenfeld, Pressure controller for the fluid flow of a hydrostatic or aerostatic journal bearing, Appl. No. DE19645535 . Deutsches Patentamt, (1999).

Google Scholar

[4] M. Mares, E. Stach, T. Holkup, Applied Method for Design Optimization of Hydrostatic Bearing on Real Machine Tool, EM2012 Conference Proceedings. 18 (2012) 857-868.

Google Scholar

[5] A. van Beek, R.A.J. van Ostayen, Analytical solution for tilted hydrostatic multi-pad thrust bearings of infinite length, Tribology International. 30 (1997) 33-39.

DOI: 10.1016/0301-679x(96)00019-9

Google Scholar