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2018 | 25 | 2 |

Tytuł artykułu

Non-line analysis of stiffness in compression conditions

Autorzy

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
The analyzes were aimed at demonstrating the influence of parameters describing the deformation of the structure on the uncertainty of critical force, and the impact of technological imperfections on stress uncertainty in compression conditions. In a linear buckling analysis, the problem is considered only for the initial, permanent state of the stiffness matrix. In the case of demonstrating the influence of initial deformations on the behavior of the structure under load, it is necessary to visualize changes in stiffness over time. To this end, a non-linear MES analysis was carried out, which will take into account local changes in the stiffness of the model through a gradual increase in the load. Thus, the difference in stiffness is taken into account, which in the linear problem is infinite. The analysis was used to examine the local and global sensitivity of the parameters describing: plating thickness as well as deformation caused by the technological process on the stress value reduced by Huber hypothesis, and the value of normal stress. To take into account the influence of non-specified values of the magnitude of geometric deviations, and their simultaneous influence on the range of obtained results, the Experimental Planning Method and the Surface Method of Answers were used

Słowa kluczowe

Wydawca

-

Rocznik

Tom

25

Numer

2

Opis fizyczny

p.100-107,fig.,ref.

Twórcy

autor
  • Faculty of Ocean Engineering and Ship Technology, Gdansk University of Technology, 11/12 Narutowicza St., 80-233 Gdansk, Poland
autor
  • Gdansk Shiprepair Yard "Remontowa" S.A., Na Ostrowiu 1, 80-958 Gdansk, Poland

Bibliografia

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  • 6. International Association of Classification Societies: Technical Background Report for CSR, 2016.
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  • 8. Kyung K. Choi, Nam H. Kim: Structural Sensitivity Analysis and Optimization 1. Mechanical engineering series, Berlin, Germany, 2013
  • 9. Marino S., Hogue I.B., et al.: A Methodology For Performing Global Uncertainty And Sensitivity Analysis In Systems Biology, 2008
  • 10. Mathews D.G.: Design and Analysis of Experiments, Eighth edition. Arizona State University, 2013.
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  • 13. Polski Rejestr Statków, Standardy budowy i napraw statków. Publikacja informacyjna nr 16/I, Gdańsk 2011.
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Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

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