Operating Performance Study of Ship’s Propulsive Shaft Including Stern Bearing’s Stiffness

Abstract:

In this paper, making ship propulsion shaft as the research object, We do research on characteristics of water-lubricated stern tube bearings and operating performance of ship’s propulsion shaft. Using FEM to discuss the impact law of the geometric properties to water-lubricated rubber bearing stiffness. Combining multiple dynamic and FEM theory, we build propulsion shaft rigid-flexible coupling dynamic model and discuss the influence of stern bearings’ stiffness. Results show that: In a certain scope, water-lubrication stern tube bearing’s stiffness changes in linear rule to the length-diameter ratio, and nonlinear change to radius ratio. Bearings’ stiffness has little influence on reaction force, but has much influence on displacement acceleration.

• Periodical: Applied Mechanics and Materials (Volumes 271-272)
• Pages: 1586-1591
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.271-272.1586
• Online since: December 2012
• Authors: Sheng Dong Zhang, Zheng Lin Liu, Hong Tao Yu
• Keywords: Operating Performance, Rigid-Flexible Coupling Systems, Stiffness, Water-Lubricated Stern Tube Bearings

References

[1] Andrés, Luis San. Measurement of structural stiffness and damping coefficients in a metal mesh foil bearing [J]. Journal of Engineering for Gas Turbines and Power. 3 (2010), pp.1-4.

DOI: 10.1115/1.3159379

[2] Salehi, Mohsen. Advancements in the Structural Stiffness and Damping of a Large Compliant Foil Journal Bearing: An Experimental Study [J]. Journal of Engineering for Gas Turbines and Power，January 129 (2007), pp.154-161.

DOI: 10.1115/1.2360598

[3] Vangrimde, B. Boukhili, R. Analysi1s of the bearing response test for polymer matrix composite laminates_ Bearing stiffness measurement and simulation [J]. Composite Structures, 56 (2002), pp.359-374.

DOI: 10.1016/s0263-8223(02)00020-x

[4] Vangrimde, B. Boukhili, R. Bearing stiffness of glass fibre-reinforced polyester_ Influence of coupon geometry and laminate properties[J]. Composite Structures. 58 (2002) , pp.57-73.

DOI: 10.1016/s0263-8223(02)00039-9

[5] A. Kenny,A. Palazzolo. Theory and Test Correlation for Laminate Stacking Factor Effect on Homopolar Bearing Stiffness[C]. International Gas Turbine Institute. 126 (2004) , pp.142-146.

DOI: 10.1115/1.1615258

[6] LI Zhen, GUI Chang1in, LI Zhiyuan, SUN Jun ect. Study on Dynamic Behaviors 0f Variably-loaded Shaft bearing System [J]. Machine Design and Research. 2(2005), pp.23-28.

[7] SHEN Rongying, ZHANG Zhiyong, WANG Yu. Shock Response of Propulsive shaft Vessels[J]. Ship Building of China. 9 (2000), pp.74-77.

[8] CCS. Rules and Regulations for the Construction and Classification of Sea-going Steel Ships[S]. Beijing: China Comunications Press, 2009. p.230.