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Proceedings Paper

CAE approach in application of Nafion-Pt composite (ICPF) actuators: analysis for surface wipers of NASA MUSES-CN nanorovers
Author(s): Satoshi Tadokoro; Masahiko Fukuhara; Yoseph Bar-Cohen; Keisuke Oguro; Toshi Takamori
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Paper Abstract

Nafion-Pt composite (ICPF) is one of the most practical electroactive polymer nearest to applications. In this paper, motion of ICPF was analyzed to design a dust wiper of a visual/IR window of Nanorover of NASA MUSES-CN mission by applying Kanno-Tadokoro simulation model. This is a gray-box model between input and output consisting of 3 stages: an electrical stage, a stress generation stage and a mechanical stage. In the electrical stage, the input is voltage and the output is distributed current through the membrane. In the stress generation stage, the input is the current and the output is internal stress. The mechanical stage is approximated by an elastic body or a viscoelastic body. Many results have shown validity of this model. As a result of analysis, the following were revealed. Strain near the electrode is larger than that at the tip. The actuator shows a rolling-up shape at the edges. The larger the aspect ratio of ICPF is, the larger the displacement is, because this spoils the actuator motion. A crosspiece at the tip prevents ICPF form rolling up and the efficiency is improved. Too long crosspiece disables ICPF form moving with a good performance.

Paper Details

Date Published: 7 June 2000
PDF: 11 pages
Proc. SPIE 3987, Smart Structures and Materials 2000: Electroactive Polymer Actuators and Devices (EAPAD), (7 June 2000); doi: 10.1117/12.387785
Show Author Affiliations
Satoshi Tadokoro, Kobe Univ. (Japan)
Masahiko Fukuhara, Kobe Univ. (Japan)
Yoseph Bar-Cohen, Jet Propulsion Lab. (United States)
Keisuke Oguro, Osaka National Research Institute (Japan)
Toshi Takamori, Kobe Univ. (Japan)

Published in SPIE Proceedings Vol. 3987:
Smart Structures and Materials 2000: Electroactive Polymer Actuators and Devices (EAPAD)
Yoseph Bar-Cohen, Editor(s)

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