“П”型井架背部杆联接刚度对其动力特性的影响  

Effect of Joint Stiffness of Back Web Members on the Dynamic Characteristics of "П" Type Oil-Drilling Mast

作　　者：韩秀清[1] 邹红云 杨光[1] 

机构地区：[1]吉林工学院基础科学系,吉林长春130012 [2]大连市劳动保险公司,辽宁大连116021

出　　处：《吉林工学院学报（自然科学版）》2000年第3期13-16,共4页Journal of Jilin Institute of Technology

基　　金：吉林省科技发展计划资助项目! (吉科合字第 970 5 5 2号 )

摘　　要：以一个实际井架 (ZJ2 0 )作为算例 ,探讨了背部腹杆联接刚度对“П”型井架系统动力特性的影响 ,研究了背部腹杆节点在空间铰、柱形铰和刚性三种理想联接方式下井架系统的动力特性 ,给出了前 6阶模态和自振频率。揭示出当背部杆节点在空间铰与刚性联接两种极端情况之间变化时 ,井架系统前 6阶自振频率可发生 2 7%～The effect of the joint stiffness of back web members on the dynamic characteristics of the mast system for oil drilling is investigated by analyzing a real mast of the type ZJ20. The dynamic characteristics of the mast system with three types of joints, i.e.,pin joints, cardan joints and fixed ends, of the back web members are investigated, and the first six modes and natural frequencies are given. It has brought to light that as the joint stiffness is changed between the extremes, the first six modes and the natural frequencies can have deviations of 27%～48% off their average .

关 键 词：动力分析 动力特性 背部腹杆 联接刚度 石油钻机 “П”型井架 

分 类 号：TE923[石油与天然气工程—石油机械设备]