Study on Fluid Characteristic of New Composite Stern Bearing

Shenwen Long; Youqiang Wang; Yabo Zhou; Cong Wei

doi:10.16578/j.issn.1004.2539.2019.04.003

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Study on Fluid Characteristic of New Composite Stern Bearing

Theory·Reserach | 更新时间：2022-10-03

- Study on Fluid Characteristic of New Composite Stern Bearing
- Journal of Mechanical Transmission Vol. 43, Issue 4, Pages: 11-14(2019)
- 作者机构：
  
  1.青岛理工大学机械工程学院，山东青岛 266520
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2019.04.003
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龙慎文,王优强,周亚博等.新型复合型艉轴承的流体特性研究[J].机械传动,2019,43(04):11-14.

Long Shenwen,Wang Youqiang,Zhou Yabo,et al.Study on Fluid Characteristic of New Composite Stern Bearing[J].Journal of Mechanical Transmission,2019,43(04):11-14.
龙慎文,王优强,周亚博等.新型复合型艉轴承的流体特性研究[J].机械传动,2019,43(04):11-14. DOI： 10.16578/j.issn.1004.2539.2019.04.003.

Long Shenwen,Wang Youqiang,Zhou Yabo,et al.Study on Fluid Characteristic of New Composite Stern Bearing[J].Journal of Mechanical Transmission,2019,43(04):11-14. DOI： 10.16578/j.issn.1004.2539.2019.04.003.

摘要

为了解决艉轴承在启停阶段造成的磨损和烧焦问题，基于有限元分析软件Fluent，提出了一种螺旋腔与阶梯腔复合形式的新型轴承。首先，运用流场分析对传统型轴承和复合型轴承水膜压力进行了数值仿真；其次将二者水膜压力积分，得到承载力，并分析转速对二者的影响；最后，运用ANSYS Workbench平台对复合型轴承进行流固耦合分析。结果表明，复合型轴承较传统型轴承，承载能力提高20%~30%，且变形主要集中在两端端泄处，为工程实际提供有效理论指导，具有较好的工程前景。

Abstract

In order to solve the problem of wear and scorch caused by the stern bearing in the start-stop phase， a new type of bearing with a combination of spiral cavity and ladder cavity is proposed based on the finite element analysis software Fluent. Firstly， the flow field analysis is used to simulate the pressure of the traditional bearing and composite bearing. Secondly， the water film pressure is integrated to obtain the bearing capacity， and the influence of the rotating speed on the two is analyzed. Finally， the composite bearing based on fluid-solid coupling is analyzed by using ANSYS Workbench. The results show that the composite bearing has a 20%~30% increase in bearing capacity compared with the conventional bearing， and the deformation is mainly concentrated at the end of the liner， which provides effective theoretical guidance for the engineering practice and has a good engineering prospect.

关键词

艉轴承螺旋腔有限元方法承载能力

Keywords

Stern bearingSpiral cavityFinite element methodCarrying capacity

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