CAE approach in application of Nafion-Pt composite (ICPF) actuators: analysis for surface wipers of NASA MUSES-CN nanorovers

Satoshi Tadokoro; Masahiko Fukuhara; Yoseph Bar-Cohen; Keisuke Oguro; Toshi Takamori

doi:10.1117/12.387785

7 June 2000 CAE approach in application of Nafion-Pt composite (ICPF) actuators: analysis for surface wipers of NASA MUSES-CN nanorovers

Satoshi Tadokoro, Masahiko Fukuhara, Yoseph Bar-Cohen, Keisuke Oguro, Toshi Takamori

Author Affiliations +

Proceedings Volume 3987, Smart Structures and Materials 2000: Electroactive Polymer Actuators and Devices (EAPAD); (2000) https://doi.org/10.1117/12.387785
Event: SPIE's 7th Annual International Symposium on Smart Structures and Materials, 2000, Newport Beach, CA, United States

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.

Citation Download Citation

Satoshi Tadokoro, Masahiko Fukuhara, Yoseph Bar-Cohen, Keisuke Oguro, and Toshi Takamori "CAE approach in application of Nafion-Pt composite (ICPF) actuators: analysis for surface wipers of NASA MUSES-CN nanorovers", Proc. SPIE 3987, Smart Structures and Materials 2000: Electroactive Polymer Actuators and Devices (EAPAD), (7 June 2000); https://doi.org/10.1117/12.387785

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