Power optimisation for an ultrasonic penetrator in granular materials

Firstbrook, David; Harkness, Patrick; Gao, Yang

doi:10.2514/6.2015-4555

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2017

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“…In addition to reducing maximum penetration forces, ultrasonics also has the potential to reduce the peak power consumption of penetration [ 27 ]. The power consumption, depicted in figure 7 a , b , corresponds to the peak power encountered at the deepest point of penetration, and the trade between low ultrasonic power and the higher actuator power needed to overcome greater resistance (and vice versa) is immediately apparent.…”

Section: Resultsmentioning

confidence: 99%

An experimental study of ultrasonic vibration and the penetration of granular material

et al. 2017

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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.

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Section: Resultsmentioning

confidence: 99%