Numerical investigation on the vibration reduction of rotating shaft ‎using different groove shapes of tilt bearing‎
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Mustansiriyah University, Mechanical Eng. Dep. Baghdad. Iraq
Submission date: 2023-03-07
Final revision date: 2023-04-24
Acceptance date: 2023-06-11
Online publication date: 2023-06-17
Publication date: 2023-06-17
Corresponding author
Ahmed Imad Abbood   

Mustansiriyah University, Mechanical Eng. Dep. Baghdad
Diagnostyka 2023;24(3):2023304
Vibration control is very important for high-speed rotors. Long shafts in gas turbines, ships, and other high-speed rotating equipment benefit from oil film damping. The tilt bearing's groove increases oil flow and suppresses rotor system vibration better than the plain bearing. This paper analyzes a groove-shaped oil flow (GSOF) to reduce rotor system vibration, which is supported by sliding bearings. To study the vibration-damping effect of flow oil shape with GSOF, a different groove shape in bearings was set up and measured. Fluent for oil flow and Transient structural for vibration measurements benefit from ANSYS software. This paper numerically simulates the groove-shaped damper's damping under the rotor system using these terms. Three vibration and settling time enhancements were found. First, the circular groove reduced amplitude by 35.71% and stilling time by 10%. Next, it reduced amplitude by 42.85% and settling time by 0%. The inclined groove reduced amplitude 42.85% and settling time 12%. Finally, the triple-inclined groove reduced amplitude and settling time by 57.14% and 20%, respectively. ‎
Jweeg MJ, Alnomani SN, Mohammad SK. Dynamic analysis of a rotating stepped shaft with and without defects. In: IOP Conference Series: Materials Science and Engineering. IOP Publishing, 2020:012004.‏
Arias-Montiel M, Silva-Navarro G. Finite element modeling and unbalance compensation for a two disks asymmetrical rotor system. Proceedings of the 5th international conference on electrical engineering, computing science and automatic control, Mexico, 2008:386–391.
Alaa J, Abdulah Muhannad Z, Khalifa Abdul Jabbar O. Reducing vibrations generated in a gas turbine model MS9001E used in south baghdad power plant station by improving the design of bearings with damper. Engineering and Technology Journal, 2021: 39(9):1454-1462.
Ertas Bugra, et al. Stabilizing a 46 MW multi-stage utility steam turbine using integral squeeze film bearing support dampers. Journal of Engineering for Gas Turbines and Power 2015:052506.
Kumar M, Phani P, Samanta NC. Murmu. Rigid rotor stability analysis on finite hydrostatic double-layer porous oil journal bearing with velocity slip. Tribology Transactions 2015;58.5:930-940.
Chang-Jian, Cai Wan. Bifurcation and chaos analysis of the porous squeeze film damper mounted gear-bearing system. Computers & Mathematics with Applications 2012; 64.5:798-812.
Bouzidane A, Thomas M. Nonlinear dynamic analysis of a rigid rotor supported by a three-pad hydrostatic squeeze film dampers. Tribology Transactions 2013; 56.5:717-727.
Chang-Jian, Cai Wan. Gear dynamics analysis with turbulent journal bearings mounted hybrids queeze film damper-chaos and active control Analysis. Journal of Computational & Nonlinear Dynamics 2015;10(1):011011.
Kumar HNA, et al. Development of smart squeeze film dampers for small rotors. Procedia Engineering 2016;144:790-800.
Spada RP, Nicoletti R. Application of the udwadia-kalaba. methodology to the active control of shaft vibration. Journal of Vibration & Control 2015; 14.14:403-10.
Yifan Shen, Xiaojing Wang, Jin Zhang, Zhaolun Li, Chao Chen. Study on vibration damping characteristics of controllable squeeze film damper. Journal of Physics: Conference Series. 2019;1168(2): 1168.
Ogaili AAF, Hamzah MN, Jaber AA. Integration of machine learning (ML) and finite element analysis (FEA) for predicting the failure modes of a small horizontal composite blade. International Journal of Renewable Energy Research (IJRER). 2022;12(4): 2168-2179.
Launder BE Spalding DB. Lectures in mathematical models of turbulence. Academic Press, London, England. 1972.
Lateb M, Masson C, Stathopoulos T, Bédard C. Comparison of various k–ε models for pollutant emissions around a two-building configuration. Journal of Wind Engineering and Industrial Aerodynamics, 2013;115: 9-21.
Abdulla Fadhel Abbas, Qasim MS, Ahmed Ali Farhan Ogaili. Influence Eggshells powder additive on thermal stress of fiberglass/polyester composite tubes. In IOP Conference Series: Earth and Environmental Science, 2021;877(1):012039.
Shyaa AK, Abbas Abdulla F. Enhancement Thermal Conductivity of PCM in Thermal Energy storage. In IOP Conference Series: Materials Science and Engineering 2020;928(2):022090.
Abdulah AJ, Khalifa MZ, Owaid AJ. Numerical analysis for determination of the vibrations and other parameters of the first stage blade of the gas turbine model (MS9001E). American Institute of Physics Conference Series 2022;2415(1).
Zhang Yipeng, Lidong He, Jianjiang Yang, Fangteng Wan, Jinji Gao. Vibration Control of an Unbalanced Single-Side Cantilevered Rotor System with a Novel Integral Squeeze Film Bearing Damper. Applied Sciences 2019;9(20):4371.
Cao Hongrui, Niu Linkai, Songtao Xi, Chen Xuefeng. Mechanical model development of rolling bearing-rotor systems: A review. Mechanical Systems and Signal Processing 2018;102:37-58.
Li H, Rong L, Zhang G. Reliability of turbulence models and mesh types for CFD simulations of a mechanically ventilated pig house containing animals. Biosystems Engineering, 2017; 161:37–52.
Sanjib Chowdhury, Yashodhan V. Joshi. Whirl analysis of an overhung disk shaft system mounted on non-rigid bearings, 2021. PREPRINT (Version 1) available at Research Square