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Please use this identifier to cite or link to this item: http://hdl.handle.net/2014/42459

Title: High temperature piezoelectric drill
Authors: Bao, Xiaoqi
Bar-Cohen, Yoseph
Sherrit, Stewart
Badescu, Mircea
Shrout, Tom
Keywords: High Temperature
Piezoelectric Drill
Rock sampling
Venus
Issue Date: 12-Mar-2012
Publisher: Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012.
Citation: SPIE Smart Structures and Materials/NDE Symposium, San Diego, California, March 10-14, 2012
Abstract: Venus is one of the planets in the solar systems that are considered for potential future exploration missions. It has extreme environment where the average temperature is 460°C and its ambient pressure is about 90 atm. Since the existing actuation technology cannot maintain functionality under the harsh conditions of Venus, it is a challenge to perform sampling and other tasks that require the use of moving parts. Specifically, the currently available electromagnetic actuators are limited in their ability to produce sufficiently high stroke, torque, or force. In contrast, advances in developing electro-mechanical materials (such as piezoelectric and electrostrictive) have enabled potential actuation capabilities that can be used to support such missions. Taking advantage of these materials, we developed a piezoelectric actuated drill that operates at the temperature range up to 500°C and the mechanism is based on the Ultrasonic/Sonic Drill/Corer (USDC) configuration. The detailed results of our study are presented in this paper
URI: http://hdl.handle.net/2014/42459
Appears in Collections:JPL TRS 1992+

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