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

ZHANG Sheng-dong; LIU Zheng-lin

Volume 13 Issue 5

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ZHANG Sheng-dong, LIU Zheng-lin. Static stiffness calculation model of water-lubricated rubber stern tube bearing[J]. Journal of Traffic and Transportation Engineering, 2013, 13(5): 61-66.

Citation:

ZHANG Sheng-dong, LIU Zheng-lin. Static stiffness calculation model of water-lubricated rubber stern tube bearing[J]. Journal of Traffic and Transportation Engineering, 2013, 13(5): 61-66.

ZHANG Sheng-dong, LIU Zheng-lin. Static stiffness calculation model of water-lubricated rubber stern tube bearing[J]. Journal of Traffic and Transportation Engineering, 2013, 13(5): 61-66.

Citation:

ZHANG Sheng-dong, LIU Zheng-lin. Static stiffness calculation model of water-lubricated rubber stern tube bearing[J]. Journal of Traffic and Transportation Engineering, 2013, 13(5): 61-66.

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

ZHANG Sheng-dong^{1, 2
,},
LIU Zheng-lin^{1, 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

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Author Bio:
ZHANG Sheng-dong(1984-), male, doctoral student, +86-27-50664251, shengdong.taiji@163.com

LIU Zheng-lin(1949-), male, professor, +86-27-86551600, zlliu812@163.com
Publish Date: 2013-10-25

Abstract

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.

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References(16)

References

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