摘要
以某型特殊螺纹接头为分析对象,建立该特殊螺纹密封可靠性功能函数,通过有限元方法对螺纹接头进行载荷包络线试验仿真,确定载荷包络线试验中螺纹接头密封失效的最危险载荷点。基于该最危险载荷点,通过随机化影响特殊螺纹密封性能的11个参量,利用Kriging代理模型对螺纹接头进行可靠性分析,确定其在载荷包络线试验中最危险载荷点下的密封可靠度。结果表明:基于Kriging模型的密封可靠性分析是评价特殊螺纹接头密封性能的一种有效方法,能够满足工程应用的需要,可用于特殊螺纹接头的设计、优化和选用。
Taking a type of casing premium connection as the analysis object, a function was constructed to evaluate the sealing reliability of the connection, and the load envelope was simulated by using the finite element method. The worst sealing point of the connection was determined during the sealing failure test. Based on the most dangerous load point during the load envelope test, by randomizing effect of the premium connection sealing performance of 11 parameters, the sealing reliability of the casing premium connection was assessed during the test of load envelope using the Kriging surrogate model. The sealing reliability of the connection at the worst load point was obtained. The results show that the Kriging model is an effective method in the evaluation of premium connection sealing reliability based on performance, and it can satisfy the need of engineering application, which is used for the design, optimization and selection of casing and tubing premium connections.
出处
《中国石油大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2016年第3期163-169,共7页
Journal of China University of Petroleum(Edition of Natural Science)
基金
国家科技重大专项(2016ZX05020-003)
中国石油天然气集团公司科学技术项目(2011A-4208
2014A-4214)
