Narzędzia help

Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
first last
cannonical link button


Polish Maritime Research

Tytuł artykułu

Multi-stage magnetic-fluid seals for operating in water – life test procedure, test stand and research results. Part. I. Life test procedure, test stand and instrumentation

Autorzy Matuszewski, L. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
EN The edge criteria for magnetic-fluid seals durability research are critical for the seal’s technological usefulness. The magnetic fluid seal technology in water is much more difficult technological problem in comparison to gas or vacuum environment. There is always problem with immediate contact between magnetic fluid and the environmental uninspected liquids. In the paper are presented ways of experiments definitions carried out with multi-stage rotating magnetic fluid seal operating in permanent contact with utility water. The special test procedures have been elaborated and practically used, with the aim to define main characteristics of magnetic fluid seals. These characteristics were: critical pressure, critical motion velocity and working life of the seal. Some grades of commercial, silicon based magnetic fluids of hydrophobic properties were tested in sealing system. The test stand and its features as well as results of tests are presented in the form of tables, cross section draws and diagrams. In conclusion one can see that multi-stage magnetic-fluid seals could be efficiently used in water for rotating shaft seals in a limited range of motion velocity and work lasting.
Słowa kluczowe
EN shaft sealing   utility water   seal durability   critical pressure   critical motion velocity   magnetic fluid  
Wydawca Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
Czasopismo Polish Maritime Research
Rocznik 2012
Tom nr 4
Strony 62--70
Opis fizyczny Bibliogr. 22 poz., rys., tab.
autor Matuszewski, L.
  • Faculty of Ocean Engineering and Ship Technology Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, POLAND,
1. Szydło Z., Zachara B., Ochoński W.: Ferromagnetic fluids and their application in machinery engineering (in Polish).Ist Conference on Automation of Machines, Devices and Processes. Krynica (Poland), 1999
2. Rosensweig R. E.: Ferrohydrodynamics. Dover Publications, Inc. Mineola, New York, 1997.
3. Rinaldi C., Chaves A., Elborai S., He X., Zahn M.: Magnetic fluid rheology and flows. Current Opinion in Colloid & Interface Science Vol.10, Issue 3-4, October, 2005.
4. Orlov D. B., et al.: Eksperimentalnoe issledovanie resursa magnitozidkostnych uplotnenij pri germetazicii zidkich sred (in Russian). Magnitnaya Gidrodinamika, No. 4, pp.127-130, 1989.
5. Kurfess J., Muller H. K.: Sealing liquids with magnetic fluids. Journal of Magnetism and Magnetic Materials, 85, 1990
6. Vihersalo J., et al.: Sealing of Liquids with Magnetic Fluid Seals. Proc. of 6th Nordic Symposium on Tribology, NORDTRIB’94, Uppsala, Sweden, 12-15 June 1994.
7. Kim Y.S., Nakatsuka K., Fujita T., Atarashi T.: Application of hydrophilic magnetic fluid to oil seal. Journal of Magnetism and Magnetic Materials 201, 1999, pp.361-363.
8. Liu T., Cheng Y., Yang Z.: Design optimization of seal structure for sealing liquid by magnetic fluids. Journal of Magnetism and Magnetic Materials, Vol. 289, March 2005.
9. Guo C., Feng S.: Sealing mechanism of magnetic fluids. Journal of Shanghai University (English Edition), 2006, 10(6), pp.522-525.
10. Chorney Alvan F.; Mraz Will.: Hermetic Sealing with Magnetic Fluids. Machine Design, May 7, 1992, 64, 9, ProQuest Science Journals p. 79.
11. Mitamura Y., Arioka S., Sakota K., Azegami M.: Application of a magnetic fluid seal to rotary blood pumps. J. Phys.: Condens. Matter 20, 2008.
12. Szydło Z., Matuszewski L.: Experimental research on effectiveness of the magnetic fluid seals for rotary shafts working in water. Polish Maritime Research No. 4, 2007 vol. 14 pp. 53–58.
13. Szydło Z., Matuszewski L.: Ring thruster – a preliminary optimisation study of ferrofluid seal and propeller. Polish Maritime Research, S1 (Special Issue), 2007 pp. 71–74.
14. Szydło Z., Matuszewski L.: The application of magnetic fluids in sealing nodes designed for operation in difficult conditions and in machines used in sea environment. Polish Maritime Research, No. 3, 2008, vol. 15, pp. 49–58.
15. A measuring head for the testing of parameters of ferromagnetic fluid seals (in Polish). Stanislav Staszic Academy of Mining and Metallurgy, Cracow. Inventors: Szydło Zbigniew, Ochoński Włodzimierz, Zachara Bolesław. Patent application PL 377598 A1, dated: 2005-10-12; published: 2007-04-16, Bulletin of (Polish) Patent Office, 2007, No. 8, p. 22.
16. Bonvouloir J.: Experimental Study of High Speed Sealing Capability of Single stage Ferrofluidic Seal. ASME Transactions, Journal of Tribology, Vol.119, July, 1997.
17. Ferrolabs, Inc. Sterling, VA United States, 2010
18. Szydło Z., Matuszewski L.: Life tests of a rotary single-stage magnetic-fluid seal for shipbuilding applications. Polish Maritime Research No. 2, 2011, vol. 18, pp. 51–59.
19. Szydło Z.: High speed magnetic fluid seal operating in water environment. 17th International Colloquium on Tribology, 19–21 January 2010, book of synopses 2010, ed. Wilfried J. Bartz., Ostfildern, Technische Akademie Esslingen, 2010.
20. Report on realization of the KBN research project No. 7T07B 02412: Determination of tribological characteristics and limiting working conditions of ferromagnetic fluid seals (in Polish). Academy of Mining and Metallurgy, Cracow, 2000.
21. Jibin Zou, Jiming Zou, and Jianhui Hu.: Design and pressure control of high pressure differential magnetic fluid seals. IEEE Transactions on magnetics, No. 5, Vol. 39, September 2003
22. - product datasheet
23. - product datasheet
Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-ac5e8d28-97e5-4a02-994c-968a322ad7f5
DOI 10.2478/v10012-012-0041-3