单齿圈复合运动破岩系统动力特性分析  

DYNAMIC CHARACTERISTICS OF THE COMPOUND ROCK BREAKING SYSTEM OF SINGLE TOOTH-ENCLOSE

作　　者：杨春雷[1] 李斌[1] 史革盟[1] 

机构地区：[1]西南石油大学机电工程学院,四川成都610500

出　　处：《西南石油大学学报（自然科学版）》2007年第4期138-140,共3页Journal of Southwest Petroleum University(Science & Technology Edition)

基　　金：国家自然科学基金(50474040)

摘　　要：牙轮钻头牙齿与岩石相互作用过程中的实际运动是很复杂的,它是变角度、斜向冲击压入加滚动和刮切等多种运动的复合。单齿圈复合运动破岩系统能够真实模拟全尺寸钻头上牙齿的运动、受力和破岩的状况,可获得较真实和完整的在一定钻头结构、钻压和转速下无重复破碎的井底破碎坑,从而为评价现有钻头性能和开发设计新型钻头提供重要的依据。研究单齿圈破岩理论,建立单齿圈复合破岩系统几何模型和动力学模型,对于分析不同类型钻头的破岩效率和建立钻头破岩的计算机仿真系统都具有非常重要的意义。通过ABAQUS有限元分析软件建立单齿圈复合运动破岩系统有限元分析模型,采用线性D-P模型模拟岩石材料,进行了单齿圈复合运动破岩系统的仿真。The actual process of interaction between the tooth of roller cone bit and rock is complex.It is changing angle,oblique shocks rolling and blow it down into various compound movement.In which,the rock breaking system of single bit tooth-row composite locomotion may simulate the motion,force and rock breaking state of tooth,and obtain the hole in all kinks of the bit structure,drill stress and rational velocity can be obtained,as to the important basis for appraising the bit preferences and researching the professional bit can be provided.It is important to appraise the rock breaking efficiency of bit and set up the simulation model that studies the theory,establish the bit tooth-low compound movement rock-breaking system geometry relational models and dynamic simulation models.In the paper,with the ABAQUS finite element analysis sofeware,the analysis model is established,the rock by linear Drucker-Prager model simulated,and the rock breaking system of single bit tooth-row composite locomotion analyzed

关 键 词：单齿圈 岩石 动力特性 仿真 ABAQUS软件 

分 类 号：TE921[石油与天然气工程—石油机械设备]