Thermo-mechanical characterization of polypyrrole compliance using system identification
Conducting polymers such as polypyrrole are studied as novel biologically inspired actuators. Their capacity to generate stresses of up to 5 MPa, strains of up to 10% at low voltages (2 V) make them ideal candidates to be used as artificial muscle materials. It has been shown that the modulus of pol...
| Main Authors: | , |
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| Format: | Article |
| Language: | en_US |
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Institute of Electrical and Electronics Engineers
2010
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| Online Access: | http://hdl.handle.net/1721.1/53517 https://orcid.org/0000-0002-8251-5432 |
| _version_ | 1811077569949204480 |
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| author | Pillai, Priam Vasudevan Hunter, Ian |
| author2 | Massachusetts Institute of Technology. BioInstrumentation Laboratory |
| author_facet | Massachusetts Institute of Technology. BioInstrumentation Laboratory Pillai, Priam Vasudevan Hunter, Ian |
| author_sort | Pillai, Priam Vasudevan |
| collection | MIT |
| description | Conducting polymers such as polypyrrole are studied as novel biologically inspired actuators. Their capacity to generate stresses of up to 5 MPa, strains of up to 10% at low voltages (2 V) make them ideal candidates to be used as artificial muscle materials. It has been shown that the modulus of polypyrrole can change when the material is electrochemically excited. In this paper we develop a technique that uses a stochastic stress input that can be used to measure the compliance frequency response (between 10-2 Hz and 100 Hz) of polypyrrole in-situ. We validate the compliance calculated from the stochastic stress input by comparing it with the compliance calculated from a single sinusoidal stress input. We also measure the compliance as a function of temperature using both techniques and show that the stochastic compliance follows the same trends as the compliance calculated from single sinusoidal stress input. |
| first_indexed | 2024-09-23T10:45:07Z |
| format | Article |
| id | mit-1721.1/53517 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:45:07Z |
| publishDate | 2010 |
| publisher | Institute of Electrical and Electronics Engineers |
| record_format | dspace |
| spelling | mit-1721.1/535172022-09-30T22:43:10Z Thermo-mechanical characterization of polypyrrole compliance using system identification Pillai, Priam Vasudevan Hunter, Ian Massachusetts Institute of Technology. BioInstrumentation Laboratory Massachusetts Institute of Technology. Department of Mechanical Engineering Hunter, Ian Pillai, Priam Vasudevan Hunter, Ian Conducting polymers such as polypyrrole are studied as novel biologically inspired actuators. Their capacity to generate stresses of up to 5 MPa, strains of up to 10% at low voltages (2 V) make them ideal candidates to be used as artificial muscle materials. It has been shown that the modulus of polypyrrole can change when the material is electrochemically excited. In this paper we develop a technique that uses a stochastic stress input that can be used to measure the compliance frequency response (between 10-2 Hz and 100 Hz) of polypyrrole in-situ. We validate the compliance calculated from the stochastic stress input by comparing it with the compliance calculated from a single sinusoidal stress input. We also measure the compliance as a function of temperature using both techniques and show that the stochastic compliance follows the same trends as the compliance calculated from single sinusoidal stress input. United States Army Research Office United States Army Research Laboratory Institute of Soldier Nanotechnologies (Contract No W911NF-07-D-0004) 2010-04-06T15:45:53Z 2010-04-06T15:45:53Z 2009-11 Article http://purl.org/eprint/type/JournalArticle 978-1-4244-3296-7 1557-170X INSPEC Accession Number: 10992546 http://hdl.handle.net/1721.1/53517 Pillai, Priam V., and Ian W. Hunter. “Thermo-mechanical characterization of polypyrrole compliance using stochastic system identification.” Engineering in Medicine and Biology Society, 2009. EMBC 2009. Annual International Conference of the IEEE. 2009. 6834-6837. © 2009 Institute of Electrical and Electronics Engineers. https://orcid.org/0000-0002-8251-5432 en_US http://dx.doi.org/10.1109/IEMBS.2009.5334477 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2009. EMBC 2009. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Institute of Electrical and Electronics Engineers IEEE |
| spellingShingle | Pillai, Priam Vasudevan Hunter, Ian Thermo-mechanical characterization of polypyrrole compliance using system identification |
| title | Thermo-mechanical characterization of polypyrrole compliance using system identification |
| title_full | Thermo-mechanical characterization of polypyrrole compliance using system identification |
| title_fullStr | Thermo-mechanical characterization of polypyrrole compliance using system identification |
| title_full_unstemmed | Thermo-mechanical characterization of polypyrrole compliance using system identification |
| title_short | Thermo-mechanical characterization of polypyrrole compliance using system identification |
| title_sort | thermo mechanical characterization of polypyrrole compliance using system identification |
| url | http://hdl.handle.net/1721.1/53517 https://orcid.org/0000-0002-8251-5432 |
| work_keys_str_mv | AT pillaipriamvasudevan thermomechanicalcharacterizationofpolypyrrolecomplianceusingsystemidentification AT hunterian thermomechanicalcharacterizationofpolypyrrolecomplianceusingsystemidentification |