Study on modeling of marine propulsion system coupled with bearing hydrodynamic lubrication

2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI:10.1109/ICTIS.2015.7232169

Weizhong Tan, Qianwen Huang, Cong Zhang, Xin-ping Yan

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Abstract

This paper is based on the multi-body dynamic coupling theory and finite element theory. A multi-body dynamic model of the slow-speed ship propulsion shafting system coupled with bearing hydrodynamic lubrication is built by Adams, Matlab and Ansys. The influence of hydrodynamic lubrication is mainly manifested in oil film pressure distribution and bearing reaction force. The oil film pressure distribution on the sliding bearing which is used to calculate the bearing reaction force is obtained based on the position and velocity of the shaft center by Matlab. The motion parameters of shaft center obtained from Adams verify the validity of simulation method and practicability of the model with hydro-bearings. By contracting with the simulation results of the bearing reaction forces, the simulation result obtained from the dynamic model of ship propulsion shafting coupled with bearing hydrodynamic lubrication is more reasonable which means it is necessary to consider the influence of oil film on simulation of ship propulsion shafting.

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船舶推进系统轴承流体动力润滑耦合建模研究

本文以多体动力耦合理论和有限元理论为基础。利用Adams、Matlab和Ansys建立了考虑轴承流体动力润滑的慢速船舶推进轴系多体动力学模型。流体动力润滑的影响主要表现在油膜压力分布和轴承反作用力上。基于轴中心的位置和速度，利用Matlab软件获得了用于计算轴承反力的滑动轴承上的油膜压力分布。由Adams软件获得的轴心运动参数验证了仿真方法的有效性和含液压轴承模型的实用性。通过与轴承反作用力的仿真结果对比，得到的船舶推进轴系耦合轴承流体动力润滑的动力学模型仿真结果更为合理，这意味着有必要考虑油膜对船舶推进轴系仿真的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2015 International Conference on Transportation Information and Safety (ICTIS)

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