凿岩机-岩石接触模型的非线性动力学分析和试验  

Nonlinear dynamic analysis and experiment in a drifter-rock contact model

作　　者：马威 张健 姜鑫 吴文章 李叶林 MA Wei;ZHANG Jian;JIANG Xin;WU Wenzhang;LI Yelin(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;School of Mechanical Engineering,Hunan University of Arts and Science,Changde 415000,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,江苏徐州221004 [5]湖南文理学院机械工程学院,湖南常德415000

出　　处：《振动与冲击》2025年第8期8-20,41,共14页Journal of Vibration and Shock

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);国家自然科学基金(52275108)。

摘　　要：该研究介绍了凿岩机的结构。结合线性岩石模型,将凿岩机钻进岩石的过程建立成四自由度力学和数学模型。将液压作用力的角频率、振幅和垂直偏移量作为控制参数,进行了单参数延拓分析,发现了倍周期分岔、鞍结分岔和环面分岔。此外,还介绍了凿岩机钻凿岩石的数据采集系统,比较了模型和试验测得的活塞位移和活塞速度。结果表明,为了使凿岩机工作在周期-1轨迹,应该选择角频率的范围为2.3500<ω<6.6110,振幅的范围为0.0272<a<1.0000,垂直偏移量的范围为0.0467<b<0.2125。模型较好地模拟了试验结果。The structure of a drifter was introduced in this paper.Integrated with a linear rock model,the process of drilling rock was established as a four-degree-of-freedom mechanical and mathematical model.Taking the angular frequency,amplitude and vertical offset of the hydraulic force as control parameters,the single-parameter continuation analysis was carried out,and the period-doubling bifurcation,saddle-node bifurcation and torus bifurcation were found.A comparison was made between the piston displacement and velocity data obtained from the model and experimental results.The results indicate that to make the drifter work on the period-1 trajectory,the range of angular frequency should be 2.3500<ω<6.6110.The range of amplitude should be 0.0272<a<1.0000.The range of vertical offset should be 0.0467<b<0.2125.The model is consistent with the experimental results.

关 键 词：凿岩机 岩石模型 延拓 黏滞 

分 类 号：TH123.2[机械工程—机械设计及理论] TH113