Ocean Systems Engineering

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Uncertainty reaction force model of ship stern bearing based on random theory and improved transition matrix method

  • Zhang, Sheng dong (School of Mechanical and Materials Engineering, Jiujiang University) ;
  • Liu, Zheng lin (School of Energy and Power Engineering Wuhan University of Technology)
  • Received : 2015.09.28
  • Accepted : 2016.05.15
  • Published : 2016.06.25
⟨ Previous Next ⟩

Abstract

Stern bearing is a key component of marine propulsion plant. Its environment is diverse, working condition changeable, and condition severe, so that stern bearing load is of strong time variability, which directly affects the safety and reliability of the system and the normal navigation of ships. In this paper, three affecting factors of the stern bearing load such as hull deformation, propeller hydrodynamic vertical force and bearing wear are calculated and characterized by random theory. The uncertainty mathematical model of stern bearing load is established to research the relationships between factors and uncertainty load of stern bearing. The validity of calculation mathematical model and results is verified by examples and experiment yet. Therefore, the research on the uncertainty load of stern bearing has important theoretical significance and engineering practical value.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China

References

  1. Benaroya, H. and Rehak, M. (1990), "Finite element analysis based on stochastic Hamilton variation principle", Comput. Struct., 37(6), 893-902. https://doi.org/10.1016/0045-7949(90)90002-J
  2. Cai, K.Y., Wen, C.Y. and Zhang, M.L. (1990), "Fuzzy variables as a basis for a theory of fuzzy reliability in the probability context", Fuzzy Subsets Syst,, 37(1), 161-172. https://doi.org/10.1016/0165-0114(90)90039-9
  3. Chen, J.J. and Che, J.W. (2000), "Optimum design based on probability for dynamic characteristics of engineering structures", Chinese J. Appl. Mech., 17(1), 29-35.
  4. Chen, J.J., Che, J.W. and Sun, H.A. (2002), "Probabilistic dynamic analysis of truss structures", Struct. Eng. Mech., 13(2), 231-239. https://doi.org/10.12989/sem.2002.13.2.231
  5. Chen, J.J., Che, J.W., Sun, H.A. et al. (2002), "Probabilistic dynamic analysis of truss structures", Struct. Eng. Mech., 13(2), 231-239. https://doi.org/10.12989/sem.2002.13.2.231
  6. Chen, S.H. and Yang, X.W. (2000), "Interval finite element method for beam structures", Finite Elem. Anal. Des., 34(1), 75-88. https://doi.org/10.1016/S0168-874X(99)00029-3
  7. Elishakoff, I. (1995), "Essay on uncertainties in elastic and vicoelastic structures: from A. M. Freudenthal's criticisms to modern convex modeling", Comput. Struct., 56(6), 871-895. https://doi.org/10.1016/0045-7949(94)00499-S
  8. Elishakoff, I. (1998), "Three versions versions of the finite element method based on concept of either stochasticty fuzziness or anti-optimization", Appl. Mech. Rev., 51(3), 209-218. https://doi.org/10.1115/1.3098998
  9. Elishakoff, I. (2000), "Possible limitations of probabilistic methods in engineering", Appl. Mech. Rev., 53(2), 19-36. https://doi.org/10.1115/1.3097337
  10. Feng, L.F., Guo, S.X. and Lv, Z.Z. (2002), "Fuzzy arithmetric and solving of the static governing equations of fuzzy finite element method", Appl. Math. Mech., 23(9), 936-942.
  11. Gao, W., Chen, J.J. and Hu, T.B. (2004), "Optimization of active vibration control for random intelligent truss structures under non-stationary random excitation", Struct. Eng. Mech., 42(9), 1818-1822.
  12. Geng, H.C., Zheng, S.Y. and Chen, J.W. (2010), "Influence analysis of large vessel hull deformation on shafting alignment", Ship Eng., 5, 7-9.
  13. Jie, L. and Jianbing, C. (2005), "Dynamic response and reliability analysis of structures with uncertain parameters", Int. J. Numer. Method. Eng., 62(2), 289-315. https://doi.org/10.1002/nme.1204
  14. Lei, Z. and Qiu, C. (2000), "Neumann dynamic stochastic finite element method of vibration for structures with stochastic parameters to random excitation", Comput. Struct., 77(6), 651-657. https://doi.org/10.1016/S0045-7949(00)00019-5
  15. Murawski, L. (2005), "Shaft line alignment analysis taking ship construction flexibility and deformations into consideration", Mar. Stuct., 18, 62-84.
  16. Su, J.B. and Shao, G.J. (2005), "Current research and prospects on interval analysis in engineering structure uncertainty analysis", Adv. Mech., 35(3), 338-344.
  17. Wang, X.D., Zhong, T. and Wu, Y.Z. (2005), "Influences of hull deformation on shafting alignment", Shanghai Shipbuild., 2, 61-63.
  18. Zhuk, S.Y. (1991), "Local-optimal control of discrete dynamic system of a random structure", Avtomatika, 1, 26-31.