Scientific achievements obtained in the project MTKD-CT-2004-517226 in years 2005-2008

• Autorzy: Wierzcholski K. , Miszczak A.
• Języki publikacji: EN

Abstrakty

EN

The synovial joint has two main components: solid one represented by the cartilage, and bio-fluid by the synovial fluid. The cartilage is a soft anisotropic solid containing pores filled with a fluid. In this paper is determined the pressure distributions in a thin layer of non-Newtonian, lubricant inside the deformable gap of spherical human hip joint. The load carrying capacities in human joints with cartilage deformations are much smaller than that obtained for not deformable cartilage surface. The changes of the joint gap height during the lubrication process are caused by the deformation of two cooperating spherical joint surfaces covered by the soft cartilage superficial layer. Hypo-elastic deformations of cartilage are taken into account. In the general case the cartilage can be subjected to large deformations. The main results described in this paper are as follows: 1.Numerical calculated values of pressure distributions for the elbow cylindrical human joints performed in this paper by virtue of analytical models taking into account the effects of congenial and growth influences on the lubrication process are compared with initial measured hydrodynamic pressure values performed by means of AFM. Measured pressure values obtained by the S. Chizhik et al. 2006 in experimental way, are different about 7 percent from the numerical values obtained in presented paper using the analytical solutions. 2.In presented paper is derived the modified Reynolds equation containing the terms describing the influences of congenial and genetic properties of the lubricant and micro-bearing materials on the pressure and load carrying capacity of bio-joints and micro-bearing. The comparisons presented in this project between human bio-joints and micro-bearings are indicated that the biobearing theory of lubrication is very helpful in MEMS and NEMS devices. The research presented in the project provides an important impact for developing the new scientific domain such as cyto-tribology, histo-tribology or tribology of cells, and tissue and of micro-surfaces occurring in mechanical micro-bearings. According to the participants knowledge such scientific domains are completely new and have been not so far initiated by any scientific centre and in any area of tribology and tissue engineering.

Słowa kluczowe

EN

hydrodynamic pressure; hyperelastic human joints; deformable gap

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2008
• Tom: Vol. 15, No. 3
• Strony: 543--549
• Opis fizyczny: Bibliogr. 33 poz., rys.

Twórcy

autor

Wierzcholski K.

autor

Miszczak A.

• Maritime University Gdynia Morska Street 81-87, 81-225 Gdynia, Poland tel..[phone], fax:[phone],

Bibliografia

• [1] Wierzcholski, K., Random changes of temperature in slide bearing gap, International Congress Thermal Stress IUTAM proceedings, pp. 449-452, Vienna 2005.
• [2] Wierzcholski, K., Thin layer of electro-rheological liquids in bioreactors, International Journal of Applied Mechanics and Engineering, Vol. 10 (Special issue), pp. 159-163, 2005.
• [3] Wierzcholski, K., Ghaemi, M. H., Tribological properties of tissue in bio-bearings and bioreactors as the histo-tribological parameters, Zagadnienia Eksploatacji Maszyn, Kwartalnik PAN, No. 3, pp. 17-30, 2005.
• [4] Wierzcholski, K., Cwanek, J., Measurements of surface roughness of heads of human hip joints in lubrication aspects, Scientific Proceedings of Applied Mechanics Faculty of Technical University of Gliwice, pp. 477-483, 2005.
• [5] Wierzcholski, K., Non-isothermal stochastic lubrication of human hip joint in periodic motion with various frequencies and amplitudes, Russian Journal of Biomechanics, Vol. 9, No. 4, pp. 72-98, Perm 2005.
• [6] Wierzcholski, K., Ghaemi, M. H., Bio and slide bearings: their lubrication by non-Newtonian fluids and application in non conventional systems, Vacancies, International Journal of Applied Mechanics and Engineering, pp. 337-340, 2005.
• [7] Wierzcholski, K., Bio and slide bearings: their lubrication by non-Newtonian fluids and application in non conventional systems. Vol. III: Tribology process for cells, human joint and micro-bearing, Monograph, Published by K. Wierzcholski, Gdansk University of Technology, Gdańsk 2007.
• [8] Wierzcholski, K., Non-Newtonian lubrication of human hip joint for unsteady impulsive motion, Zagadnienia Eksploatacji Maszyn, Kwartalnik PAN, Vol. 41, No. 1, pp. 37-60, 2006.
• [9] Wierzcholski, K., Experimental measurements of artificial hip joint surfaces and applications for the preassure and capacity distributions, Journal of Kones Powertrain and transport, Vol. 13, No. 2, pp. 435-441, 2006.
• [10] Wierzcholski, K., Experimental measurements of friction forces on the tissue in probabilistic view, Journal of Kones Powertrain and transport, Vol. 13, No. 3, pp. 427-435, 2006.
• [11] Wierzcholski, K., Manthei, G., Application of acoustic emission metod for measurement of joint gap and cartilage surfaces, Mechanics in Medicine 8, Proceedings of Scientific Seminar, pp. 243-246, Rzeszów 2006.
• [12] Peters, I., Wierzcholski, K., Kurzer Bericht über das Problem der Knieschmierung, Mechanics in Medicine 8, Proceedings of Scientific Seminar, pp.181-185, Rzeszów 2006.
• [13] Wierzcholski, K., Method of determining to the solving of friction forces on the tissue surface in bioreactor, Tribologia, 4(208), pp. 139-150, 2006.
• [14] Miszczak, A., Wierzcholski, K., Chizhik, S., The influence of roughness and geometrical structure of tissue surface on friction forces during the tissue cultivation in bioreactor, Tribologia, 4(208), pp. 99-112, 2006.
• [15] Wierzcholski, K., Equations of tribological parameters for liquid flow in boundary layer on the tissue surface in bioreactor, Tribologia, 4(208), pp. 153-166, 2006.
• [16] Wierzcholski, K., Chizhik, S., Micro-and nano level of bio-joint lubrication, Tribologia, 4(208), pp. 167-179, 2006.
• [17] Chizhik, S. A., Wierzcholski, K., Miszczak, A., The theoretical description of friction force in bio joint as function of cartilage roughness, Zagadnienia Eksploatacji Maszyn, Kwartalnik PAN, Vol. 41, Z. 2 (146), pp. 29-39, 2006.
• [18] Wierzcholski, K., Miszczak, A., Flow and friction around the growing cartilage cells, Zagadnienia Eksploatacji Maszyn, Kwartalnik PAN, Vol. 41, Z. 2 (146), pp. 199-212, 2006.
• [19] Wierzcholski, K., Human hip joint lubrication for permeable cartilage, Zagadnienia Eksploatacji Maszyn, Kwartalnik PAN, Vol. 41, Z. 2 (146), pp. 213-221, 2006.
• [20] Wierzcholski, K., Miszczak, A., About nutrient flow between potential flow and cartilage surface in bioreactor, Zagadnienia Eksploatacji Maszyn, Kwartalnik PAN, Vol. 41, Z. 2(146), pp. 185-197, 2006.
• [21] Wierzcholski, K., Friction forces review for the nutrient liquid flow on the permeable rtilage surface in bioreactor, Tribologia, 3(207), pp. 195-207, 2006.
• [22] Wierzcholski, K., Friction forces for human hip joint at a naturally permeable cartilage. International Journal of Applied Mechanics and Engineering. Vol. 11, No. 3, pp. 515-527, 2006.
• [23] Chizhik, S. A., Ghaemi, H., A new concept of measuring the friction forces for cartilage and polymers with viscoelastic properties, Tribologia, 4 (208), pp. 37-48, 2006.
• [24] Wierzcholski, K., Tribology of the cartilage cells in intelligent bioreactor, Russian Journal of Biomechanics, Vol. 11, No. 2, pp. 47-61, Perm 2007.
• [25] Wierzcholski, K., Stochastic contributions on the pressure in slide bearing gaps after impulse, Journal of Polish CIMAC, Explo-Diesel & Gas Turbine Proceedings, International Scientific-Technical Conference, Gdansk, Stokholm, Tumba, pp. 493-501, 2007.
• [26] Wierzcholski, K., Miszczak, A., Numerical determination of friction forces in unsteady loaded biobearings, Tribologia, 1(211), pp. 247-258, 2007.
• [27] Wierzcholski, K., Miszczak, A., Numerical determination of friction coefficient occurring in unsteady human joints, Tribologia, 1(211), pp. 235-245, 2007.
• [28] Wierzcholski, K., Boundary conditions for friction forces in future bearing, Journal of Kones Powertrain and Transport, Vol. 14, No. 4, pp. 507-513, 2007.
• [29] Wierzcholski, K., Miszczak, A., Friction on the bio cell surfaces as a contribution in microbearing tribology, Journal of Kones Powertrain and Transport, Vol. 14, No. 4, pp. 515-522, 2007.
• [30] Wierzcholski, K., Miszczak, A., Projekt wyznaczania tribologicznych parametrów komórek chrząstki stawowej w inteligentnych bioreaktorach, Tribologia, 3(213), pp. 339-353, 2007.
• [31] Wierzcholski, K., Miszczak, A., Metody bada tribologicznych parametrów w inteligentnych bioreaktorach, Tribologia, 3(213), pp. 355-368, 2007.
• [32] Wierzcholski, K., Boundary problem of human joints, XII International Conference-System Modelling and Control SMC, Zakopane 2007.
• [33] Wierzcholski, K., Lubrication of deformed hip joint, XII International Conference-System Modelling and Control SMC, Zakopane 2007.