上海交通大学学报

上海交通大学学报（自然版） ›› 2018, Vol. 52 ›› Issue (6): 681-686.doi: 10.16183/j.cnki.jsjtu.2018.06.008

• 学报（中文） • 上一篇    下一篇

基于尾管后轴承分段弹性接触的 船舶推进轴系校中计算

杨红军1，卢菲1，车驰东2   

  1. 1. 上海船舶研究设计院，上海 201203； 2. 上海交通大学 海洋工程国家重点试验室， 上海 200240
  • 通讯作者: 杨红军（1982-），男，江苏省南通市人，高级工程师，主要从事船舶推进轴系计算与研究.E-mail：yhj99373aman@163.com.通信作者：车驰东，男，博士,讲师,电话（Tel.）:021-38139388；E-mail：churchdoor@sjtu.edu.cn.
  • 基金资助:
    工信部高技术船舶科研计划“船用低速机工程（一期）研制”

Alignment Calculation for Ship Propulsion Shaft Based on Segmentation Elastic Contact Theory of After Stern Tube Bearing

YANG Hongjun1,LU Fei1,CHE Chidong2   

  1. 1. Shanghai Merchant Ship Design & Research Institute, CSSC, Shanghai 201203, China; 2. State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

摘要： 为了研究大型商船推进轴系静态条件下尾管后轴承和螺旋桨轴的接触情况，建立了推进轴系校中计算的有限元模型.将尾管后轴承分成多个轴承分段，分别使用Hertz和Winkler 2种接触模型来模拟各个轴承段和轴段之间的接触形态，作为梁单元的非线性支撑边界条件，并使用迭代法求解有限元模型.数值计算结果表明：2种接触模型在后轴承接触范围的计算结果是基本一致的，但Winkler接触模型刚度较Hertz接触模型高，接触区域小，负荷分布集中.Hertz接触模型接触范围较大，不能满足Hertz接触模型成立的前提条件，因此在尾管后轴承的接触计算中，存在一定的局限性.

关键词: 尾管后轴承, 弹性接触, 非线性, 轴系校中

Abstract: In order to investigate the contact status between after stern tube bearing and propeller shaft of large merchant ships in static condition, the FE model of shaft alignment for propulsion shaft was built by beam element, where the stern tube bearing was divided into several sections. As non-linear support boundary condition of beam element, both Hertz and Winkler elastic contact model were used to simulate contact status between each shaft bearing and shaft. The FE model was solved by iterative method. In accordance with the calculation results, it was revealed that two methods had similar outcomes in the contact area of after stern tube bearing, but the contact stiffness of Winkler contact model, with smaller contact area and more concentrative force, was higher than Hertz contact model. And the contact area of Hertz contact model was larger, and could not fulfil the prerequisite of Hertz contact model, so it might result in limitation in after stern tube bearing contact calculation.

Key words: after stern tube bearing, elastic contact, non-linear, shaft alignment

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