Integrality Assessment of Tubular Joints in Aging Offshore Platform Based on Reliability Theory
The paper presents a reliability-based approach to assess the structural integrality of tubular joints with cracks in aging offshore platforms.Two different fatigue failure models are established respectively according to crack propagation size and equivalent fatigue strength,and the corresponding computing methods of fatigue reliability are proposed.The fatigue stress of tubular joint suffering sea wave load is calculated by spectrum analysis.The numerical examples are given to show the difference between the two reliability models.Considered the influence of inspection and repair,the reliability is updated by two different maintenance schedules.The analysis results can help to work out the optimal inspection planning,so as to prolong the service life for aged offshore platforms.
Integrality assessment Reliability analysis tubular joint in offshore platform Inspection and maintenance planning Life extension
Hong Lin Guoming Chen Zhengfang Wang Lei Yang
Centre for Offshore Engineering and Safety Technology, China University of Petroleum, Qingdao 266580 Centre for Offshore Engineering and Safety Technology, China University of Petroleum, Qingdao 266580 College of Mechanical and Electrical Engineering, Zibo Vocational Institute, Zibo 255314, China College of Science, China University of Petroleum, Qingdao 266580, China
国际会议
西安
英文
238-242
2012-08-24（万方平台首次上网日期，不代表论文的发表时间）