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浏览/检索结果: 共3条，第1-3条 帮助 已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Rotary-Percussive Ultrasonic Drill: An Effective Subsurface Penetrating Tool for Minor Planet Exploration 期刊论文 IEEE ACCESS, 2018, 卷号: 6, 页码: 37796-37806 作者:  Wang, Yinchao;  Quan, Qiquan;  Yu, Hongying;  Bai, Deen;  Li, He 收藏  |  浏览/下载：12/0  |  提交时间：2019/12/11 Planetary rock sampling  ultrasonic drill  single piezo-ceramics  rotary-percussive drilling  drilling experiment   Design and analysis of a new down-the-hole electromagnetic hammer driven by tube linear motor 期刊论文 IET ELECTRIC POWER APPLICATIONS, 2017, 卷号: 11, 期号: 9 作者:  Wu, Tao;  Tang, Yiru;  Tang, Shengwen;  Li, Yongbo;  He, Wangyong 收藏  |  浏览/下载：13/0  |  提交时间：2019/12/05 linear motors  drilling (geotechnical)  rocks  hydraulic systems  pneumatic systems  hammers (machines)  finite element analysis  electromagnetic forces  mining industry  down-the-hole electromagnetic hammer  tube linear motor  percussive-rotary drilling  hard rock drilling  hydraulic hammers  pneumatic hammers  percussive energy requirement  finite element analysis software  Ansoft  Maxwell 2D  electromagnetic force   COMBINED PERCUSSIVE-ROTARY DRILLING TO INCREASE RATE OF PENETRATION AND LIFE OF DRILL BIT IN DRILLING HARD ROCK FORMATION 期刊论文 CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS, 2017, 卷号: 53, 页码: 254-262 作者:  Zha, Chunqing;  Liu, Gonghui;  Li, Jun;  Li, Yumei;  Xi, Yan 收藏  |  浏览/下载：10/0  |  提交时间：2020/01/03 percussive-rotary drilling  ROP  stick-slip  torsional vibration. PDC  weight on bit  CPJ  CPRDA