基于JTP规范大型油船疲劳热点寿命评估  

The evaluation of hot spot fatigue life in a large oil tanker based on JTP rule

作　　者：杨永祥[1] 嵇春艳[1] 罗广恩[1] 

机构地区：[1]江苏科技大学船舶与海洋工程学院,江苏镇江212003

出　　处：《舰船科学技术》2007年第4期44-46,60,共4页Ship Science and Technology

摘　　要：基于S-N曲线法和Miner疲劳累积损伤度原理,根据国际船级社协会制订的油轮结构共同规范(JTP),采用热点应力法对某一巴拿马型成品油轮疲劳热点位置处(内底与底边舱斜板的焊接折角)的疲劳应力进行了计算,并根据JTP规范对该热点位置的疲劳寿命进行了评估。The paper adopts hot-spot-stress method to analyze the stress of the hot spot （inner bottom and hopper plate connection） based on S-N curve and Miner cumulative damage rule. The evaluation process is based on Common Structural Rules for Double Hull Oil Tankers （JTP） made by ICAS. At last, the geometric hot spot stresses are calculated, and the hot spot fatigue life is evaluated.

关 键 词：JTP规范 疲劳寿命 大型油船 

分 类 号：U661[交通运输工程—船舶及航道工程]