井架结构安全承载力动态参数评定方法  

Safety Bearing Capacity Evaluative Method of Derrick Structures Based on Dynamic Parameter

作　　者：赵庆梅[1] 周国强[2] 郭奕珊[2] 

机构地区：[1]江苏工业学院机械工程系,江苏常州213016 [2]大庆石油学院秦皇岛分院,河北秦皇岛066004

出　　处：《江苏工业学院学报》2007年第2期35-37,共3页Journal of Jiangsu Polytechnic University

基　　金：中国石油天然气集团公司科学研究与技术开发项目(03B209000)

摘　　要：用振动理论研究井架结构固有频率与作用载荷的关系,并对现场在用井架模型进行了有限元数值分析,得出井架结构作用载荷与其固有频率平方之间的线性关系,提出测试井架在零载和有载作用下的固有频率来评定安全承载能力的方法,并应用此方法对现场在用井架进行了测试和安全评定。This paper studies the relationship between frequency of derrick structure and load acting on it by using vibration theory, and the numerical simulations analysis for derrick model-in-use is carried. So the linear relationship between the load acting on the derrick and the square of the basic frequency is deduced. On this basis, a method of evaluating the bearing capacity of the derrick is presented by testing frequencies under different load actions. This method is applied to detection and safety evaluation of derrick- in- use.

关 键 词：井架 动态参数 承载能力 安全评定 

分 类 号：TE923[石油与天然气工程—石油机械设备]