An experimental study of ultrasonic vibration and the penetration of granular material. (28th February 2017)

• Record Type: Journal Article
• Authors: Firstbrook, David; Worrall, Kevin; Timoney, Ryan; Suñol, Francesc; Gao, Yang; Harkness, Patrick
• Is Part Of: Proceedings. Volume 473:Number 2198(2017)
• Publication Date: 2017-02-28
• Subjects: ultrasonic -- penetration -- granular -- rheology; Physical sciences -- Periodicals; Engineering -- Periodicals; Mathematics -- Periodicals; 500
• DOI: 10.1098/rspa.2016.0673
• Languages: English
• ISSNs: 1364-5021

Abstract

Abstract : This work investigates the potential use of direct ultrasonic vibration as an aid to penetration of granular material. Compared with non-ultrasonic penetration, required forces have been observed to reduce by an order of magnitude. Similarly, total consumed power can be reduced by up to 27%, depending on the substrate and ultrasonic amplitude used. Tests were also carried out in high-gravity conditions, displaying a trend that suggests these benefits could be leveraged in lower gravity regimes.