JJ16041-K型石油井架结构的动力响应分析  

Dynamic Response Analysis of JJ160/41-K Oil Derrick Structure

作　　者：张丽娜[1] 李凤臣[1] 杨鸥[2] 肖烨[1] 何春锋[1] 

机构地区：[1]东华理工大学建筑工程学院,放射性地质与勘探技术国防重点学科实验室,抚州344000 [2]湖南大学土木工程学院,长沙410082

出　　处：《科学技术与工程》2012年第20期4884-4887,共4页Science Technology and Engineering

基　　金：国家青年自然科学基金项目(51108172);江西省自然科学基金项目(20114BAB212006);江西省教育厅科技项目(GJJ12395);东华理工大学硕博启动基金项目(DHBK1017;DHXK1128)资助

摘　　要：针对石油井架结构长期服役在野外恶劣环境下,局部或整体损伤等缺陷常成为安全生产中的事故隐患。通过白噪声模拟随机环境激励,利用ANSYS有限元建模,对石油井架系统进行动力响应分析。研究结果表明:井架结构的振动模态为空间振动,同时各节点在白噪声激励下的动力响应规律基本一致,动力响应数据的获得可为损伤诊断研究提供输入数据,对提高井架承载能力检测与安全评估水平,具有重要的理论意义和实用价值。An approach for investigating the partial or whole harms of oil derrick structures is proposed. Ac- cording to oil derrick structures in using have been used for a long time in the long term bad outside environment, the partial or whole harms have always been event hidden troubles in safety production. Using white-noise to simu- late the stochastic ambient excitation, and building the oil derrick structural finite element modeling with ANSYS, dynamic response analysis was carried out based on oil derrick structure. The results show that the vibration mode of derrick structures is spatial vibration ; meanwhile, dynamic response rules of each node under white noise excita- tions are basically identical. Dates of dynamic response are the base of damage diagnosis. Research a sort of scien- tific test method is very important on theory and application to enhance evaluating the carrying capacity of oil der- rick and safety evaluation method.

关 键 词：JJ160/41-K型石油井架 环境激励 动力响应 损伤诊断 模态分析 

分 类 号：TE324[石油与天然气工程—油气田开发工程]