基于ABAQUS的凿岩机钻头破岩数值模拟分析

张强1,2,3 索江伟1王海舰1 孙国庆1 孙赫威1

振动与冲击 ›› 2018, Vol. 37 ›› Issue (1) : 136-141.

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振动与冲击 ›› 2018, Vol. 37 ›› Issue (1) : 136-141.
论文

基于ABAQUS的凿岩机钻头破岩数值模拟分析

  • 张强1,2,3  索江伟1王海舰1 孙国庆1  孙赫威1
作者信息 +

Numerical simulation analysis on the drill bit rock breaking process based on ABAQUS

  • ZHANG Qiang1,2,3,SUO Jiang-wei1,WANG Hai-jiang1,SUN Guo-qing1,SUNHe-wei1
Author information +
文章历史 +

摘要

为提高液压凿岩机的破岩效率和破岩速度,运用ABAQUS分析软件,对液压凿岩机在回转-冲击载荷下连续破碎硬质岩石过程进行动力学仿真分析。研究不同冲击频率、回转速度及初始地应力多个参数对破岩效果影响,对数值模拟结果分别进行分析。结果表明:破岩速度随回转速度增大而增大,当回转速度达到300 r/min后破岩速度几乎不再改变,且在300 r/min时破岩效率最高;随着冲击频率增加破岩速度明显增大,在70 Hz时具有最高破岩效率;不同初始地应力条件对破岩速度影响较小,但对破岩效率有很大影响。研究结果为实际工程中改善液压凿岩机破岩效果提供了重要理论参考和数值依据。

Abstract

In order to improve the rock breaking speed and efficiency, a dynamics simulation analysis was done by using the ABAQUS analysis software to study the process of continuously crushing hard rock under the rotary-impact load from a hydraulic drill. The effects of the impact frequency, rotary speed and initial crustal stress on the rock breaking efficiency were discussed. The numerical simulation analysis results show that: the rock breaking speed increase with the increase of rotary speed. When the rotary speed is up to 300r/min, the rock breaking speed is almost no longer changed and the rock breaking efficiency reaches the maximum. As the impact frequency increases, the rock breaking speed increases obviously, and at 70 Hz achieves the highest rock breaking efficiency. Different initial crustal stress conditions have little influence on the rock breaking speed, but it has a great impact on the efficiency of rock breaking. The results provide an important theoretical reference and numerical basis for improving the rock breaking effect of rock drills in practical engineering.
 

 

关键词

凿岩机 / ABAQUS / 回转速度 / 冲击频率 / 初始地应力 / 破岩效率 / 破岩速度

Key words

drill / ABAQUS / rotary speed / impact frequency / initial crustal stress / rock breaking efficiency / rock breaking speed

引用本文

导出引用
张强1,2,3 索江伟1王海舰1 孙国庆1 孙赫威1. 基于ABAQUS的凿岩机钻头破岩数值模拟分析[J]. 振动与冲击, 2018, 37(1): 136-141
ZHANG Qiang1,2,3,SUO Jiang-wei1,WANG Hai-jiang1,SUN Guo-qing1,SUNHe-wei1. Numerical simulation analysis on the drill bit rock breaking process based on ABAQUS[J]. Journal of Vibration and Shock, 2018, 37(1): 136-141

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