|Table of Contents|

Static stiffness calculation model of water-lubricated rubber stern tube bearing(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2013年05期
Page:
61-66
Research Field:
载运工具运用工程
Publishing date:

Info

Title:
Static stiffness calculation model of water-lubricated rubber stern tube bearing
Author(s):
ZHANG Sheng-dong1; 2;  LIU Zheng-lin1; 2
1. School of Energy and Power Engineering, Wuhan University of Technology, Wuhan 430063, Hubei, China; 2. Key Laboratory of Marine Power Engineering and Technology of Ministry of Communications, Wuhan University of Technology, Wuhan 430063, Hubei, China
Keywords:
ship engineering;  water-lubricated rubber stern tube bearing;  structural static stiffness calculation model;  finite element method;  linear regression method
PACS:
U664.21
DOI:
-
Abstract:
In order to shorten the distence between the experience value and actual value of water-lubricated rubber stern tube bearing, a static stiffness calculation model was proposed by phenomenological theory. The calculation model was linearized to obtain the parameters by linear regression method and finite element method. Significance test for the influence factors of bearing static stiffness was carried out by difference method. Test method offered the stiffness correction coefficient, which verified the correctness and validity of the model. Analysis result shows that the most significant influence on static stiffness of stern tube bearing is length-diameter ratio, the second ones are modulus and pressure ratio, and the last one is rubber thickness. Compared the static stiffness model with the methods of estimation or experience in references, the minimum and maximum relative errors are 0.41% and 34.77% respectively, indicating a closer value to the real. With the increase of pressure ratio, the static stiffness increases nonlinearly, the maximum change value is 1.83×108 N·m-1. 7 tabs, 2 figs, 16 refs.

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Last Update: 2013-10-30