三自由度凿岩机-岩石模型的分岔分析和实验  

BIFURCATION ANALYSIS AND EXPERIMENT IN A 3 DOF DRIFTER-ROCK MODEL

作　　者：马威 张健 姜鑫 吴文章 MA Wei;ZHANG Jian;JIANG Xin;WU Wen-zhang(School of Civil and Resource Engineering,University of Science and Technology Beijing,Beijing 100083,China;Nanjing Baodi Meishan Industry and City Development Co.,Ltd.Mining Branch,Nanjing 210041,China;School of Mechanical Engineering,University of Science and Technology Beijing,Beijing 100083,China;XCMG Foundation Construction Machinery Co.,Ltd.,Xuzhou 221004,China)

机构地区：[1]北京科技大学土木与资源工程学院,北京100083 [2]南京宝地梅山产城发展有限公司矿业分公司,南京210041 [3]北京科技大学机械工程学院,北京100083 [4]徐州徐工基础工程机械有限公司,徐州221004

出　　处：《工程力学》2025年第4期226-233,共8页Engineering Mechanics

基　　金：2022年度江苏省工业和信息产业转型升级专项资金项目(2022C22)。

摘　　要：介绍了液压凿岩机的结构,将凿岩机钻进岩石的过程建立成三自由度干摩擦力岩石的物理模型。研究了黏滞和非黏滞模式,解释了这两种运动类型之间的差异。利用庞加莱映射和直接数值积分方法,将液压作用力的角频率和振幅作为控制参数,发现了倍周期分岔和环面分岔。介绍了液压凿岩机钻凿岩石的数据采集系统,比较了模型和实验测得的活塞的位移和速度。结果表明:为了使凿岩机工作在非黏滞-钻进的周期-1轨迹,应该选择角频率的范围为2.66<ω<5.28,当ω=3时,模型得到最大钻进速率。应该选择振幅的范围为0.13<a<3。实验和模型之间存在很强的相关性,相比于实验,在模型中活塞与钎尾碰撞之前经历了减速,多了一个冲击减速行程。The structure of the hydraulic drifter is introduced.The process of drilling into rocks with a hydraulic drifter is established as a physical model of three degrees of freedom dry friction rock.The stick and non-stick modes are investigated,and the differences between these two types of motion are explained.By using Poincarémapping and direct numerical integration methods,the angular frequency and amplitude of the hydraulic force are taken as control parameters,revealing period-doubling and torus bifurcations.The data acquisition system for drilling rocks with the hydraulic drifter is introduced,and the displacement and velocity of the piston obtained from the model and experiments are compared.The analysis results indicate that:to make the drifter work on“non-stick penetration”and period-1 trajectory,the range of angular frequency should be selected as 2.66<ω<5.28,and when ω=3,the model achieves the maximum ROP.The range of the amplitude should be selected as 0.13<a<3.There is a strong correlation between the experiments and the model,and compared to the experiments,the model experiences deceleration before the collision between the piston and the drill string,adding an impact deceleration stroke.

关 键 词：液压凿岩机 岩石模型 分岔 庞加莱映射 黏滞 

分 类 号：O322[理学—一般力学与力学基础] TD42[理学—力学]