Dynamic performance and stability characteristics of a multi pad externally adjustable fluid film bearing

References

• Babin, A., A. Kornaev, A. Rodichev, and L. Savin. 2020. “Active Thrust Fluid-film Bearings: Theoretical and Experimental Studies.” Proc. Inst. Mech. Eng. Part J: J. Eng. Tribol 234 (2): 261–273. doi:10.1177/1350650119862074.
   Web of Science ®Google Scholar
• Chasalevris, A., and F. Dohnal. 2012. “A Journal Bearing with Variable Geometry for the Reduction of the Maximum Amplitude during Passage through Resonance.” J. Vib. Acoust 134 (6): 061005. doi:10.1115/1.4007242.
   Web of Science ®Google Scholar
• Chasalevris, A., and F. Dohnal. 2014. “Vibration Quenching in a Large Scale Rotor-bearing System Using Journal Bearings with Variable Geometry.” J. Sound Vib 333 (7): 2087–2099. doi:10.1016/j.jsv.2013.11.034.
   Web of Science ®Google Scholar
• Chasalevris, A., and F. Dohnal. 2015. “A Journal Bearing with Variable Geometry for the Suppression of Vibrations in Rotating Shafts: Simulation, Design, Construction and Experiment.” Mech. Syst. Signal Process 52: 506–528. doi:10.1016/j.ymssp.2014.07.002.
   Web of Science ®Google Scholar
• Chasalevris, A., and F. Dohnal. 2016. “Improving Stability and Operation of Turbine Rotors Using Adjustable Journal Bearings.” Tribol. Int 104: 369–382. doi:10.1016/j.triboint.2016.06.022.
   Web of Science ®Google Scholar
• Chasalevris, A., and F. Dohnal. 2018 04 January.“Suppressing Vibrations of Shafts Using Adjustable Bearings,” U. S. Patent 2018/0003075A1.
   Google Scholar
• Chasalevris, A., and G. Guignier. 2019. “Alignment and Rotordynamic Optimization of Turbine Shaft Trains Using Adjustable Bearings in Real-time Operation.” Proc. Inst. Mech. Eng. C: J. Mech. Eng. Sci 233 (7): 2379–2399. doi:10.1177/0954406218791636.
   Web of Science ®Google Scholar
• Deckler, D. C., R. J. Veillette, M. J. Braun, and F. K. Choy. 2004. “Simulation and Control of an Active Tilting-pad Journal Bearing.” Tribol. T 47 (3): 440–458. doi:10.1080/05698190490463277.
   Web of Science ®Google Scholar
• Freire Wu, M., and K. Lucchesi Cavalca. 2019. “Experimental Validation and Comparison between Different Active Control Methods Applied to a Journal Bearing Supported Rotor.” Struct. Control Health Monit 26 (12): e2446. doi:10.1002/stc.2446.
   Web of Science ®Google Scholar
• Ganesha, A., R. Pai, S. Rao, and S.A. Khader. 2021. “Multi-objective Optimization and Significant Analysis of Bearing Element Adjustments on the Static Performance of an Innovative Adjustable Bearing through Design of Experiment.” Proc. Inst. Mech. Eng. Part J: J. Eng. Tribol 235 (9): 1820–1833. doi:10.1177/1350650120975240.
   Web of Science ®Google Scholar
• Gong, X. C., and Y. L. Qin. 2021. “Vibration Control of Unsymmetrical Rotating Machinery with an Active Tilting Pad Journal Bearing,” 2021 IEEE International Conference on Sensing, Diagnostics, Prognostics, and Control (SDPC), Weihai, China, pp. 260–269. doi: 10.1109/SDPC52933.2021.9563348.
   Google Scholar
• Hamrock, B. J., S. R. Schmid, and B. O. Jacobson. 1994. Fundamentals of Fluid Film Lubrication. International Edition ed. Singapore: McGraw Hill.
   Google Scholar
• Hariharan, G., and R. Pai. 2018. “Mathematical Formulation of a Modified Film Thickness Equation for Multipad Externally Adjustable Fluid Film Bearing.” Cogent Eng 5: 1–15. doi:10.1080/23311916.2018.1493672.
   Google Scholar
• Hariharan, G., and R. Pai. 2019. “Analysis on the Steady State Performance of a Multi Pad Externally Adjustable Fluid Film Bearing.” Ind. Lubr. Tribol 71 (6): 803–809. doi:10.1108/ILT-10-2018-0371.
   Web of Science ®Google Scholar
• Krodkiewski, J. M., Y. Cen, and L. Sun. 1997. “Improvement of Stability of Rotor System by Introducing a Hydraulic Damper into an Active Journal Bearing.” Int. J. Rotating Mach 3 (1): 45–52. doi:10.1155/S1023621X97000055.
   Google Scholar
• Krodkiewski, J. M., and L. Sun. 1998. “Modelling of Multi-bearing Rotor Systems Incorporating an Active Journal Bearing.” J. Sound Vib 210 (2): 215–229. doi:10.1006/jsvi.1997.1323.
   Web of Science ®Google Scholar
• Majumdar, B. C., R. Pai, and D. J. Hargreaves. 2004. “Analysis of Water-lubricated Journal Bearings with Multiple Axial Grooves.” Proc. Inst. Mech. Eng. Part J: J. Eng. Tribol 218 (2): 135–146. doi:10.1177/135065010421800208.
   Google Scholar
• Martin, J. K., and D. W. Parkins. 1998 30 June. “Fluid Film Bearings.” In U. S. Patent 5(772):334.
   Google Scholar
• Martin, J. K. 1999. “A Mathematical Model and Numerical Solution Technique for A Novel Adjustable Hydrodynamic Bearing.” Int. J. Numer. Methods Fluids 30 (7): 845–864. doi:10.1002/(SICI)1097-0363(19990815)30:7<845::AID-FLD867>3.0.CO;2-O.
   Web of Science ®Google Scholar
• Martin, J. K., and D. W. Parkins. 2001. “Testing of a Large Adjustable Hydrodynamic Journal Bearing.” Tribol. T 44 (4): 559–566. doi:10.1080/10402000108982495.
   Web of Science ®Google Scholar
• Martin, J. K., and D. W. Parkins. 2002. “Theoretical Studies of a Continuously Adjustable Hydrodynamic Fluid Film Bearing.” J. Tribol 124 (1): 203–211. doi:10.1115/1.1396343.
   Web of Science ®Google Scholar
• Martin, J. K. 2004. “Measured Stiffness and Displacement Coefficients of a Stationary Rotor Hydrostatic Bearing.” Tribol. Int 37 (10): 809–816. doi:10.1016/j.triboint.2004.04.010.
   Web of Science ®Google Scholar
• Nicoletti, R., and I. F. Santos. 2003. “Linear and Non-linear Control Techniques Applied to Actively Lubricated Journal Bearings.” J. Sound Vib 260 (5): 927–947. doi:10.1016/S0022-460X(02)00951-3.
   Web of Science ®Google Scholar
• Nicoletti, R., and I. F. Santos. 2005. “Frequency Response Analysis of an Actively Lubricated Rotor/tilting-pad Bearing System.” J. Eng. Gas Turbines Power 127 (3): 638–645. doi:10.1115/GT2004-54034.
   Web of Science ®Google Scholar
• Ogrodnik, P. J., M. J. Goodwin, Y. Fang, and M. P. Roach. 1996. “A Novel Variable Impedance Hydrodynamic Oil-film Bearing: Part 2: Experimental Identification of the Steady State and Dynamic Characteristics.” Proc. Inst. Mech. Eng. Part J: J. Eng. Tribol 210 (1): 65–74. doi:10.1243/PIME_PROC_1996_210_478_02.
   Google Scholar
• Pai, R., and D. W. Parkins. 2018. “Performance Characteristics of an Innovative Journal Bearing with Adjustable Bearing Elements.” J. Tribol 140 (4): 041705. doi:10.1115/1.4039134.
   Web of Science ®Google Scholar
• Palazzolo, A. B., R. R. Lin, R. M. Alexander, A. F. Kascak, and J. Montague. 1991. “Test and Theory for Piezoelectric Actuator-active Vibration Control of Rotating Machinery.” J. Vib. Acoust 113 (2): 167–175. doi:10.1115/1.2930165.
   Web of Science ®Google Scholar
• Przybyłowicz, P. M. 2004. “Active Stabilisation of a Rigid Rotor by Piezoelectrically Controlled Mobile Journal Bearing System.” Aust. J. Mech. Eng 1 (2): 123–128. doi:10.1080/14484846.2004.11464474.
   Google Scholar
• Santos, I. F. 1995. “On the Adjusting of the Dynamic Coefficients of Tilting-pad Journal Bearings.” Tribol. T 38 (3): 700–706. doi:10.1080/10402009508983461.
   Web of Science ®Google Scholar
• Santos, I. F., and F. H. Russo. 1998. “Tilting-pad Journal Bearings with Electronic Radial Oil Injection.” J. Tribol 120 (3): 583–594. doi:10.1115/1.2834591.
   Web of Science ®Google Scholar
• Santos, I. F., and A. Scalabrin. 2003. “Control System Design for Active Lubrication with Theoretical and Experimental Examples.” J. Eng. Gas Turbines Power 125 (1): 75–80. doi:10.1115/1.1451757.
   Web of Science ®Google Scholar
• Shenoy, B. S., “Performance evaluation of single pad externally adjustable fluid film bearing,” Ph.D Thesis, Manipal: Manipal University, India, 2008.
   Google Scholar
• Shenoy, B. S., and R. Pai. 2009a. “Steady State Performance Characteristics of Single Pad Externally Adjustable Fluid Film Bearing in the Laminar and Turbulent Regimes.” J. Tribol 131 (2): 021701. doi:10.1115/1.3070580.
   Web of Science ®Google Scholar
• Shenoy, B. S., and R. Pai. 2009b. “Theoretical Investigations on the Performance of an Externally Adjustable Fluid-film Bearing Including Misalignment and Turbulence Effects.” Tribol. Int 42 (7): 1088–1100. doi:10.1016/j.triboint.2009.03.008.
   Web of Science ®Google Scholar
• Shenoy, B. S., and R. Pai. 2011. “Dynamic Characteristics of a Single Pad Externally Adjustable Fluid Film Bearing.” Ind. Lubr. Tribol 63 (3): 146–151. doi:10.1108/00368791111126563.
   Web of Science ®Google Scholar
• Sun, L., J. M. Krodkiewski, and Y. Cen. 1998. “Self-tuning Adaptive Control of Forced Vibration in Rotor Systems Using an Active Journal Bearing.” J. Sound Vib 213 (1): 1–14. doi:10.1006/jsvi.1997.1466.
   Web of Science ®Google Scholar
• Sun, L., and J. M. Krodkiewski. 2000. “Experimental Investigation of Dynamic Properties of an Active Journal Bearing.” J. Sound Vib 230 (5): 1103–1117. doi:10.1006/jsvi.1999.2671.
   Web of Science ®Google Scholar
• Tang, P., A. Palazzolo, A. Kascak, and G. Montague. 1995a. “Active Vibration Control of Rotating Machinery with a Hybrid Piezohydraulic Actuator System.” J. Eng. Gas Turbines Power 117 (4): 767–776. doi:10.1115/94-GT-053.
   Web of Science ®Google Scholar
• Tang, P., A. Palazzolo, A. Kascak, G. Montague, and W. Li. 1995b. “Combined Piezoelectric-hydraulic Actuator Based Active Vibration Control for Rotordynamic System.” J. Vib. Acoust 117 (3A): 285–293. doi:10.1115/1.2874449.
   Google Scholar
• Ur Rehman, W., J. Guiyun, L. Yuan Xin, W. Yongqin, N. Iqbal, S. UrRehman, and S. Bibi. 2019. “Linear Extended State Observer-based Control of Active Lubrication for Active Hydrostatic Journal Bearing by Monitoring Bearing Clearance.” Ind. Lubr. Tribol 71 (7): 869–884. doi:10.1108/ILT-09-2017-0263.
   Web of Science ®Google Scholar
• Wu, A., M. De, and Queiroz. 2010. “A New Active Tilting-pad Bearing: Nonlinear Modeling and Feedback Control.” Tribol. T 53 (5): 755–763. doi:10.1080/10402001003783199.
   Web of Science ®Google Scholar
• Zhang, S., H. Xu, L. Zhang, Y. Xing, and Y. Guo. 2019. “Vibration Suppression Mechanism Research of Adjustable Elliptical Journal Bearing under Synchronous Unbalance Load.” Tribol. Int 132: 185–198. doi:10.1016/j.triboint.2018.10.043.
   Web of Science ®Google Scholar
• Zhang, L., H. Xu, S. Zhang, and S. Pei. 2020. “A Radial Clearance Adjustable Bearing Reduces the Vibration Response of the Rotor System during Acceleration.” Tribol. Int 144: 106112. doi:10.1016/j.triboint.2019.106112.
   Web of Science ®Google Scholar