Journal of Shanghai Jiao Tong University

Journal of Shanghai Jiaotong University››2013,Vol. 47››Issue (02): 274-277.

• Communication and Transportation •Previous ArticlesNext Articles

Study on Post-service Jacket Platform Residual Life Reliability Prediction Method

LIU Yong-1, CHEN Lu-Yun-1, HOU Guo-Hua-2

  1. (1. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China; 2. Army Equipment Science Research Purchase Department, PLA General Equipment Department, Beijing 100034, China)
  • Received:2012-03-25Online:2013-02-28Published:2013-02-28

Abstract:To ensure the post-service platform security in the late service period, it is necessary to predict platform structure residual life reliability. This paper focuses on platform global time-varying reliability resulting from component dynamic failure and fatigue failure under random wave loads. Firstly component fatigue reliability and dynamic reliability were calculated according to Miner linear cumulative damage theory and first crossing failure criteria, components with larger failure probability were searched and deleted. Then the wave incremental dynamic analysis was used to find the limiting wave height which the platform could bear. Finally combining with the wave statistics, platform global structure time-varying reliability was calculated to predict the residual life. The example shows the practicality and simplicity of the proposed method.

Key words:offshore platform,residual life reliability,random wave,wave incremental dynamic analysis

CLC Number:

Baidu
map