Journal of Siberian Federal University. Engineering & Technologies / Negative Compliance of Energy-Saving Adaptive Journal Hydrostatic Bearing with a Restriction of the Output Lubricant Stream

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Issue
Journal of Siberian Federal University. Engineering & Technologies. 2010 3 (4)
Authors
Kodnyanko, Vladimir A.
Contact information
Kodnyanko, Vladimir A. : Siberian Federal University , 79 Svobodny, Krasnoyarsk, 660041 Russia , e-mail:
Keywords
energy-saving; hydrostatic bearing; negative compliance
Abstract

Non-contact sliding bearings lubricated with a liquid, which have a negative compliance of lubricating film, can be used in the machine-tool nodes to compensate of its elastic system deformation for improve the accuracy of processing. Known designs of such bearings, in which a decrease in ductility is due to the application of input consumption regulators (AGSB-CR), have high energy costs and instability characteristics of compliance. In this paper we consider the construction of a new category of adaptive bearings - journal hydrostatic bearing with a restriction of the output lubricant stream (AGSB-OS). The paper presents a mathematical model of support, according to analytical estimates obtained and considered a simplified method for determination of its static characteristics without the influence on them district overflows lubrication. It is shown that AGSB-OS compared with AGSB-CR consumes energy is 3-4 times smaller. It has more stable characteristics of negative compliance and a broader range of adaptive loads. It was also found that AGSB-OS with negative compliance is more economical, even in comparison with the conventional hydrostatic bearing.

Pages
444-453
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/1864

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