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Proceedings Paper

Analysis and simulation of the ultrasonic/sonic driller/corer (USDC)
Author(s): Xiaoqi Bao; Zensheu Chang; Stewart Sherrit; Benjamin P. Dolgin; Yoseph Bar-Cohen; Dharmendra Sign Pal; Shu Du; Thomas Peterson
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Paper Abstract

An ultrasonic/sonic driller/corer (USDC) was developed to address the challenges to the NASA objective of planetary in-situ rock sampling and analysis. The USDC uses a novel drive mechanism, transferring ultrasonic vibration into impacts on a drill stem at sonic frequency using a free- flying mass block (free-mass). The main parts of the device and the interactions between them were analyzed and numerically modeled to understand the drive mechanism and allow design of effective drilling mechanism. A computer program was developed to simulate the operation of the USDC and successfully predicted the characteristic behavior of the new device. This paper covers the theory, the analytical models and the algorithms that were developed and the predicted results.

Paper Details

Date Published: 15 July 2002
PDF: 12 pages
Proc. SPIE 4701, Smart Structures and Materials 2002: Smart Structures and Integrated Systems, (15 July 2002); doi: 10.1117/12.474673
Show Author Affiliations
Xiaoqi Bao, Jet Propulsion Lab. (United States)
Zensheu Chang, Jet Propulsion Lab. (United States)
Stewart Sherrit, Jet Propulsion Lab. (United States)
Benjamin P. Dolgin, Jet Propulsion Lab. (United States)
Yoseph Bar-Cohen, Jet Propulsion Lab. (United States)
Dharmendra Sign Pal, Cybersonics, Inc. (United States)
Shu Du, Cybersonics, Inc. (United States)
Thomas Peterson, Cybersonics, Inc. (United States)

Published in SPIE Proceedings Vol. 4701:
Smart Structures and Materials 2002: Smart Structures and Integrated Systems
L. Porter Davis, Editor(s)

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