Ultrasonically assisted coring of rocks

Li, X. and Harkness, P. (2021) Ultrasonically assisted coring of rocks. In: IEEE International Ultrasonic Symposium (IUS 2021), Xi'an, China, 11-16 September 2021, ISBN 9780738112091 (doi: 10.1109/IUS52206.2021.9593485)

Abstract

Drilling in extreme environments such as extraterrestrial objects allow us to study the original geological and biological signature, and to understand the history hidden beneath. This will require reductions in weight-on-bit, torque and energy usage, without compromising the penetration rate-of-progress. This paper examines the use of ultrasonic vibration, directly superimposed onto an augering coring bit, to achieve this goal in aircrete and limestone. Experimental results show that compared to traditional rotary drilling processes using the same tool, the ultrasonically assisted drilling processes has demonstrated an improved rate-of-progress. A total energy consumption is founded at optimum vibration amplitude at the cutting teeth.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Harkness, Professor Patrick and Li, Dr Xuan
• Authors: Li, X., and Harkness, P.
• College/School: College of Science and Engineering > School of Engineering > Systems Power and Energy
• ISBN: 9780738112091
• Published Online: 15 November 2021
• Copyright Holders: Copyright © 2021 IEEE
• Publisher Policy: Reproduced in accordance with the publisher copyright policy

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