Ultrasonically Assisted Hammer-Action Penetrators in Planetary Regolith

Firstbrook, D. , Worrall, K. , Timoney, R. and Harkness, P. (2018) Ultrasonically Assisted Hammer-Action Penetrators in Planetary Regolith. ASCE Earth and Space Conference, Cleveland, OH, USA, 10-13 Apr 2018.

156625.pdf - Accepted Version



This paper describes the effects of combining ultrasonic vibration with hammer-action style penetrators, such as the HP3 probe on the InSight mission. By synchronizing short pulses of vibration with the impact of the hammer, the number of hammer strikes required to reach a specified depth was reduced by over a third in some cases, depending on the sand and amplitude of vibration used. Additional investigations looked at comparing the performance of pure hammering with pure pulsing, allowing recommendations for operational procedures if this technology were to be taken forward in the future.

Item Type:Conference or Workshop Item
Glasgow Author(s) Enlighten ID:Worrall, Dr Kevin and Firstbrook, David George and Timoney, Dr Ryan and Harkness, Professor Patrick
Authors: Firstbrook, D., Worrall, K., Timoney, R., and Harkness, P.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity
Copyright Holders:Copyright © 2018 ASCE
First Published:First published in 2018 ASCE Earth and Space Conference
Publisher Policy:Reproduced in accordance with the publisher copyright policy
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