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An Investigation of the Steady-State Performance of a Pressurized Air Wave Journal Bearing

Kuznetov, Alexandru Marius
http://rave.ohiolink.edu/etdc/view?acc_num=toledo1262985839

Abstract Details

2010, Master of Science in Mechanical Engineering, University of Toledo, Mechanical Engineering.
The purpose of this thesis is to investigate the steady-state behavior of a pressurized wave bearing. The pressurized air wave journal bearing was analyzed using a commercial CFD software, Fluent. The 3D Navier Stokes compressible equations were integrated to simulate the flow. Turbulence effects were included in the computation. The real geometry of the wave bearing and of the supply holes were simulated by using a structured grid. The steps performed during the numerical simulation and the set-up of Fluent used in the thesis are presented in detail. The model was validated by comparing the flow rate obtained at different supply pressures for zero eccentricity and zero rotational speed to values of the flow rate obtained experimentally. The steady-state behavior of the bearing for eccentric positions is simulated using the “moving reference frame” method. The load capacity for different eccentricities and velocities at a constant supply pressure of 50 PSI were calculated. The advantage of the method used in this thesis is that it does not require a correction of the flow rate with an empirical discharge coefficient. Moreover, the method allows the calculation of the discharge coefficient based on the results of the simulation. In the present thesis, the discharge coefficients are calculated for different eccentricities and rotational speeds and supply pressures
Abdollah Afjeh, Dr. (Advisor)
Florin Dimofte, Dr. (Advisor)
Cyril Masiulaniec, Dr. (Committee Member)
56 p.
Engineering
bearings; steady-state; eccentricity ratio; Fluent

Recommended Citations

Citations

  • Kuznetov, A. M. (2010). An Investigation of the Steady-State Performance of a Pressurized Air Wave Journal Bearing [Master's thesis, University of Toledo]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1262985839

    APA Style (7th edition)

  • Kuznetov, Alexandru. An Investigation of the Steady-State Performance of a Pressurized Air Wave Journal Bearing. 2010. University of Toledo, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=toledo1262985839.

    MLA Style (8th edition)

  • Kuznetov, Alexandru. "An Investigation of the Steady-State Performance of a Pressurized Air Wave Journal Bearing." Master's thesis, University of Toledo, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1262985839

    Chicago Manual of Style (17th edition)

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This open access ETD is published by University of Toledo and OhioLINK.