Analysis of underwater explosion shock on ship shaft stern bearing lubrication characteristics under different bearing working conditions
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초록
Warship always face the threat of underwater explosion shock, which may affect the ship stern tube bearing lubrication performance when the propeller shaft is bending. This paper builds the coupling model of shaft longitudinal vibration and bearing lubrication with consideration of shaft axial shock and misalignment. The performance of stern bearing under the influence of explosion shock was analyzed by solving the generalized Reynolds equation, shaft longitudinal vibration equation and explosion shock equation. The result shows that: the effect of underwater explosion shock on bearing lubrication performance is transient, and the effect will be more obvious when the bearing works at close quarter, larger misaligned angle, eccentricity and rotation speed. Moreover, the edge effect which caused by shaft bending will increase with the decrease of explosion distance and the increase of eccentricity.
Abstract
Warship always face the threat of underwater explosion shock, which may affect the ship stern tube bearing lubrication performance when the propeller shaft is bending. This paper builds the coupling model of shaft longitudinal vibration and bearing lubrication with consideration of shaft axial shock and misalignment. The performance of stern bearing under the influence of explosion shock was analyzed by solving the generalized Reynolds equation, shaft longitudinal vibration equation and explosion shock equation. The result shows that: the effect of underwater explosion shock on bearing lubrication performance is transient, and the effect will be more obvious when the bearing works at close quarter, larger misaligned angle, eccentricity and rotation speed. Moreover, the edge effect which caused by shaft bending will increase with the decrease of explosion distance and the increase of eccentricity.
참고문헌 (24)
- Brochard, Kevin, "Estimation of the response of a deeply immersed cylinder to the shock wave generated by an underwater explosion", Mar. Struct, 72, pp.1~10 (2020)
- Chen, Y., "Longitudinal vibration of marine propellershafting system induced by inflow turbulence", J. Fluid Struct, 68, pp.264~278 (2017)
- Elsharkawy, Abdallah A., "Effects of misalignment on the performance of finite journal bearings lubricated with couple stress fluids", Int. J. Comput. Appl. Technol, 21, pp.137~146 (2004)
- Huang, Chao, "Underwater explosion of slender explosives: directional effects of shock waves and structure responses", Int. J. Impact Eng, 130, pp.266~280 (2019)
- Jang, Joon Yong, "On the characteristics of misaligned", J. Bear. Lubricant, 3, pp.27~53 (2015)
- Kuang, Fuming, "Computer-vision-based research on friction vibration and coupling of frictional and torsional vibrations in water-lubricated bearing-shaft system", Tribol. Int, 150, pp.1~13 (2020)
- Li, Biao, "Thermohydrodynamic lubrication analysis of misaligned journal bearing considering the axial movement of journal", Tribol. Int, 135, pp.397~407 (2019)
- Liu, Zhenglin, "Computation on Pressure Distribution of Stern Bearing Liquid Film Rechoning in Inclination of Stern Shaft", Journal of Wuhan university of technology, pp.111~113 (2009)
- Liu, Weili, "Investigation on the tribological performance of micro-dimples textured surface combined with longitudinal or transverse vibration under hydrodynamic lubrication", Int. J. Mech. Sci, 174, pp.1054~1074 (2020)
- Lv, Fangrui, "Mixed-lubrication analysis of thin polymer film overplayed metallic marine stern bearing considering wall slip and journal misalignment", Tribol. Int, 109, pp.390~397 (2017)
- Lv, Fangrui, "Mixed-lubrication analysis of misaligned journal bearing considering turbulence", Tribol. Int, 119, pp.19~26 (2018)
- Naduvinamani, N. B., "Effect of surface roughness on the static characteristics of rotor bearings with couple strss fluid", Comput. Struct, 80, pp.1243~1253 (2002)
- Qianwen, Huang, "Impact factors on lubricant performance of stern bearing with misalignment angle induced by transverse vibration of shaft", Ocean Eng, 216(15), pp.1~10 (2020)
- Qianwen, Huang, "Numerical modeling and experimental analysis on coupled torsional-longitudinal vibrations of a ship's propeller shaft", Ocean Eng, 136, pp.272~282 (2017)
- Shen, L., "Experimental and numerical analysis of nonlinear dynamics of rotor-bearing-seal system", Nonlinear Dynam, 53(1-2), pp.31~44 (2008)
- Sun, Jun, "Hydrodynamic lubrication analysis of journal bearing considering misalignment caused by shaft deformation", Tribol. Int, 37, pp.841~848 (2004)
- Wang, Piguang, "A substructure method for the transient response of vertical cylinders subjected to shock wave of underwater explosion", Ocean Eng, 218, pp.108~128 (2020)
- Wu, Chuang, "The self-excited vibration induced by friction of the shaft-hull coupled system with the water-lubricated rubber bearing and its stick-slip phenomenon", Ocean Eng, 198, pp.1~11 (2020)
- Xiang, G., "A transient hydrodynamic lubrication comparative analysis for misaligned micro-grooved bearing considering axial reciprocating movement of shaft", Tribol. Int, 132, pp.11~23 (2019)
- Xiang, G., "Coupling transient mixed lubrication and wear for journal bearing modeling", Tribol. Int, 138, pp.1~15 (2019)
- Yu-xiang, Peng, "A meshfree framework for the numerical simulation of elasto-plasticity deformation of ship structure", Ocean Eng, 192(15), pp.1~14 (2019)
- Zheng, Liangyan, "Effects of oil film thickness and viscosity on the performance of misaligned journal bearings with couple stress lubricants", Tribol. Int, 119, pp.106~229 (2020)
- Zhu, Hanhua, "Research on the influence of ship stern shaft to journal bearing lubrication property", Lubric. Eng, 32(3), pp.1~3 (2007)
- Zhu, Hanhua, "Analysis on the property of ship shafting bending-torsion vibration coupling with bearing lubrication property", J. Ship Mech, 14(1-2), pp.126~131 (2010)