IMPROVEMENT OF THE CHARACTERISTICS OF A SINGLE-SUPPORT AEROSTATIC BEARING SYSTEM WITH LABYRINTH SEALS
DOI:
https://doi.org/10.18372/0370-2197.1(110).20936Keywords:
aerostatic bearing, single-support system, modernization, labyrinth seals, boost pressure, energy balance of air flow, average clearance, spindle assembly, load capacity, support stiffnessAbstract
This study focuses on the characteristics and optimization of a mechanical system with a single support element that utilizes an angular contact aerostatic bearing, which is used in high-speed machining. To solve the problem of increasing load-carrying capacity and stiffness, a new approach is proposed: adjusting the flow of gaseous lubricant at the outlet of the gap using external labyrinth seals. Mathematical modeling shows that increasing the outlet pressure prevents the occurrence of critical supersonic flow while significantly improving operating parameters. The results show that the use of external labyrinth seals increases the bearing load capacity by 10% while reducing air consumption by 30%. A comparative analysis shows that at an optimal average clearance of 15 μm, a single-support system demonstrates a load-carrying capacity 2.1 times greater than that of an equivalent double-support system. Single-support aerostatic systems are highly effective for non-contact drives subjected to relatively low bending moments.
References
Akhondzadeh, M. and Vahdati, M. (2014) ‘Study of variable depth air pockets on air spindle vibrations in ultra-precision machine tools, The International Journal of Advanced Manufacturing Technology, 73(5-8), pp.681–686. https://doi.org/10.1007/s00170-014-5866-8.
Chen, C.-H., Kang, Y. and Huang, C.-C. (2003) ‘The influences of orifice restriction and journal eccentricity on the stability of the rigid rotor-hybrid bearing system, Tribology International, 37(3), pp.227–234. https://doi.org/10.1016/s0301-679x(03)00139-7.
Genta, G. (2009) Vibration dynamics and control. New York: Springer.
Ise, T., Nakatsuka, M., Nagao, K., Matsubara, M., Kawamura, S., Asami, T., Kinugawa, T. and Nishimura, K. (2017) ‘Externally pressurized gas journal bearing with slot restrictors arranged in the axial direction, Precision Engineering, 50, pp.286–292. https://doi.org/10.1016/j.precisioneng.2017.05.016.
Nosko, P., Breshev, V. and Fil, P. (2008) ‘The concept of creating non-contact drive for working bodies in machines of various purpose, Polish Academy of sciences in Lublin TEKA Commission of motorization in agriculture, Lublin. Vol. VIIIA, pp.126–133.
Breshev, V. E. Strukturnij sintez bezkontaktnih privodiv robochih mashin [Tekst] / V. E. Breshev, O. V. Breshev. Vostochno-Evropejskij zhurnal peredovyh tehnologij. 2011. № 5/3 (53). S. 6–10.
Kosmynin, A. V. Kombinirovannaya opora shpindelnogo uzla [Elektronnyj resurs] : Nauchnaya elektronnaya biblioteka (NEB) / A. V. Kosmynin, V. S. Shetinin, S. V. Vinogradov // Fundamentalnye issledovaniya. – 2007. – № 12 – S. 83-84. – Rezhim dostupa k zhurnalu : http://www.rae./fs/?section=content&op=show_article&article_id=7778554.
Zablockij, N. D. K 50-letiyu shkoly gazovoj smazki L. G. Lojcyanskogo [Elektronnyj resurs] : Problemy turbulentnosti i vychislitelnaya gidrodinamika (k 70-letiyu kafedry «Gidroaerodinamika») / N. D. Zablockij, I. E. Sipenkov, A. Yu. Filippov // Nauchno tehnicheskie vedomosti. – 2004. – № 2 –S. 159–176. – Rezhim dostupa k zhurn. : http://aero.spbstu./science/public/dept70.html.
V.E. Breshev, O.V. Breshev, P.L. Nosko, O.V. Bashta, S.Yu. Bohdan. Simulation modeling in hydrodynamic analysis software for the flow of pumped fluid in a centrifugal pump impeller. Problems of friction and wear, 4 (109). 2025. pp.153-161.
Chermenskij, O. N. Podshipniki kacheniya [Tekst]: spravochnik–katalog / O. N. Chermenskij, N. N. Fedotov. – M. : Mashinostroenie, 2003. – 576 s.
O.V. Breshev, O.V. Bashta, P.L. Nosko, A.O. Bashta, O.M. Spivak, I.V. Semak. Development of a design scheme of a single-support drive system with aerostatic bearings. Problems of friction and wear, 2 (107). 2025. pp.25-31.
Voskresenskij, V. A. Raschyot i proektirovanie opor skolzheniya [Tekst]: spravochnik / V. A. Voskresenskij, V. I. Dyakov. – M. : Mashinostroenie, 1980. – 280 s. – (Biblioteka konstruktora).
GOST ISO 4378-1-2001. Mezhgosudarstvennyj standart. Podshipniki skolzheniya terminy, opredeleniya i klassifikaciya. Ch.1. Konstrukciya, podshipnikovye materialy i ih svojstva [Tekst]. – Vved. 2002-07-01. IPK Izd-vo standartov, 2002. – 18 s.
Magnetic Bearings and Bearingless Drives [Text] /A. Chiba [and other]. – Newnes An imprint of Elsevier Linacre House. – Oxford, 2005. – 375 r.
Breshev O.V., Nosko P.L., Bashta O.V., Boiko H.O., Radko O.V. Do pytannia pro stiikist rukhu robochoho orhanu v odnovisnomu bezkontaktnomu pryvodi. Naukove elektronne fakhove vydannia Skhidnoukrainskoho natsionalnoho universytetu imeni V.Dalia “Naukovi visti Dalivskoho universytetu”. №26 , 2024, Kyiv
Jia, C., Pang, H. and Ma, W. (2017) ‘Analysis of dynamic characteristics and stability prediction of gas bearings, Industrial Lubrication and Tribology, 69(2), pp.123–130. https://doi.org/10.1108/ilt-09-2015-0134.
Kang, T.S., Choi, D.H. and Jeong, T.G. (2001) ‘Optimal design of HDD air-lubricated slider bearings for improving dynamic characteristics and operating performance, Journal of Tribology Trans ASME, 123(3), pp.541–547. https://doi.org/10.1115/1.1308031.
Breshev, O., Nosko, P., Bashta, O., Bashta, A. and Radko, M. (2024) ‘Study of the dynamics of spindle shaft on gas-static bearings, Problems of Friction and Wear, 1(102), pp.91–100. https://doi.org/10.18372/0370-2197.1(102).18433.
Breshev O.V., Nosko P., Bashta O.V., Spivak O.M, Boiko H.O., Radko M.V. Analiz dynamichnoi stiikosti vysokoshvydkisnoho shpyndelia na hazostatychnykh pidshypnykakh. Naukove elektronne fakhove vydannia Skhidnoukrainskoho natsionalnoho universytetu imeni V.Dalia “Naukovi visti Dalivskoho universytetu”. №26 , 2024, Kyiv.
Kharchenko A., Breshev O., Nosko P., Bashta O. Shliakhy tekhnichnoho udoskonalennia mashyn z bezkontaktnymy priamymy pryvodamy na aerostatychnykh oporakh ta otsinka yikh efektyvnosti. POLIT. Suchasni problemy nauky: KhKhIV mizhnar. nauk.-prakt. konf. stud. ta molodykh uchenykh: tezy dop. K, 2024. S. 49–51.
Yang, D.-W., Chen, C.-H., Kang, Y., Hwang, R.-M. and Shyh-Shyong Shyr (2009) ‘Influence of orifices on stability of rotor-aerostatic bearing system, Tribology International, 42(8), pp.1206–1219. https://doi.org/10.1016/j.triboint.2009.04.002.
Breshev, Oleksii Volodymyrovych. Vdoskonalennia bezkontaktnykh priamykh pryvodiv mashyn stvorenniam rehulovanykh konichnykh aerostatychnykh opor [Tekst] : avtoref. dys. ... kand. tekhn. nauk : 05.02.02 / Breshev Oleksii Volodymyrovych; Skhidnoukr. nats. un-t im. Volodymyra Dalia. Luhansk, 2014. 24 s.
Peshti, Yu. V. Gazovaya smazka [Tekst] / Yu. V. Peshti – M.: Izd-vo MGTU im. N.E. Baumana, 1993. – 381s.
Nikiforov, A. N. Problemy kolebanij i dinamicheskoj ustojchivosti bystrovrashayushihsya rotorov [Elektronnyj resurs] : Nacionalnaya tehnologicheskaya gruppa / A. N. Nikiforov // Vestnik nauchno-tehnicheskogo razvitiya. – 2010. – №3(31).
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