• 学报（中文） •

### 基于尾管后轴承分段弹性接触的 船舶推进轴系校中计算

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

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.