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Reliability analysis of dynamic structures

Daghigh, M ; Sharif University of Technology | 2003

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  1. Type of Document: Article
  2. Publisher: Sharif University of Technology , 2003
  3. Abstract:
  4. In this paper, the concepts to compute reliabilities for stationary and ergodic conditions in the presence of time-invariant, non-ergodic parameters will first be reviewed. Focus will be on numerical techniques like FORM and numerical integration. The effect of correlation between the environmental processes within a sea state is studied, as opposed to between sea state correlation which proves be unimportant. The system reliability of jack-up structures is discussed using a combination of dynamic simulation of a stick model and the static analysis of a detailed jack-up model. First, the dynamic time domain simulation, the quasi-static time-domain simulation and the design wave analysis are applied for different sea-states using a stick structural model. In the second phase, the concepts of Dynamic Amplification Factors (DAF) and Calibration Factors (CF) are introduced for extreme responses of a detailed structural model of the jack-up structure. To utilize the analogical quantities for stick and detailed structural models, the design wave responses of the detailed structural model are linked with the extreme responses and the probabilistic models of dynamic effects using a stick structural model
  5. Keywords:
  7. Source: Scientia Iranica ; Volume 10, Issue 1 , 2003 , Pages 1-12 ; 10263098 (ISSN)
  8. URL: http://scientiairanica.sharif.edu/article_2662.html