| 罗春雷,梁健明.液压凿岩台车钻臂振动特性分析[J].井冈山大学自然版,2019,40(2):64-71 |
| 液压凿岩台车钻臂振动特性分析 |
| VIBRATION CHARACTERISTICS ANALYSIS OF THE DRILLING ARM OF HYDRAULIC DRILLING PLATFORML |
| 投稿时间：2018-12-21 修订日期：2019-01-15 |
| DOI：10.3969/j.issn.1674-8085.2019.02.012 |
| 中文关键词: 振动特性 凿岩台车钻臂 凿岩机 模态分析 有限元分析 |
| 英文关键词: vibration characteristics rock drilling rig drilling arm rock drilling machine modal analysis finite element analysis |
| 基金项目:国家高技术研究发展计划项目（863计划）（SS2012AA041809）；高性能复杂制造国家重点实验室自主研究课题（zzyjkt2014-08） |
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| 中文摘要: |
| 钻臂作为凿岩定位工作的直接完成者，在凿岩冲击反力激励下往往会振幅过大，影响成孔质量和液压元器件、钻臂的使用寿命。因此有必要对凿岩机的激励特性、结构动力学特性和振动响应进行研究。以阿特拉斯凿岩台车钻臂和Cop 1838ME型凿岩机为研究对象，对凿岩机活塞进行动力学分析，并采集活塞动力学数据，得到了振动激励的定量计算公式。利用hypermesh建立全钻臂的有限元模型，进行有限元模态分析，得到钻臂结构的动力学特性。进而对钻臂进行瞬态分析，得到钻臂的振动响应。对通常的钻臂、凿岩机和其他冲机器的振动分析和减振设计、力学分析以及轻量化设计具有一定的指导意义。 |
| 英文摘要: |
| As the direct completion of the rock drilling positioning work,the drill arm tends to have excessive amplitude under the impact of the rock impact force,which affects the quality of the hole and the service life of the hydraulic components and the boom.Therefore,it is necessary to study the excitation characteristics,structural dynamic characteristics and vibration response of rock drills.Taking the Atlas rock drilling rig and cop 1838ME rock drill as the research object,we obtain the dynamic analysis of the rock drill piston,the piston dynamics data and the quantitative calculation formula of vibration excitation.Furthermore,the finite model of the full-bore arm is established by hypermesh,and the finite element modal analysis is carried out to obtain the dynamic characteristics of the boom.Transient analysis of the drill arm results in a vibration response of the drill arm.It has certain guiding significance for the vibration analysis and vibration reduction design,mechanical analysis and lightweight design of the common drill arm,rock drill and other punching machines. |
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