TY - GEN
T1 - Modeling actuation of ionomer cilia in salt solution under an external electric field
AU - Boldini, Alain
AU - Rosen, Maxwell
AU - Cha, Youngsu
AU - Porfiri, Maurizio
N1 - Funding Information:
This research was supported by the National Science Foundation under Grant No. OISE-1545857 and by KIST flagship program under Project No. 2E29460.
Publisher Copyright:
© 2019 ASME.
PY - 2019/1/1
Y1 - 2019/1/1
N2 - A recent experiment by Kim's group from the University of Nevada, Las Vegas has demonstrated the possibility of actuating ionomer cilia in salt solution. When these actuators are placed between two external electrodes, across which a small voltage is applied, they move toward the cathode. This is in stark contrast with the case of ionic polymer metal composites, where these ionomers are plated by metal electrodes and bending occurs towards the anode. Here, we seek to unravel the factors underlying the motion of ionomer cilia in salt solution through a physically-based model of actuation. In our model, electrochemistry is described through the Poisson-Nernst-Planck system in terms of concentrations of cations and anions and voltage, which is solved through the finite element method. Based on computer simulations, we establish that Maxwell stress is the main driving force for the motion of the cilia.
AB - A recent experiment by Kim's group from the University of Nevada, Las Vegas has demonstrated the possibility of actuating ionomer cilia in salt solution. When these actuators are placed between two external electrodes, across which a small voltage is applied, they move toward the cathode. This is in stark contrast with the case of ionic polymer metal composites, where these ionomers are plated by metal electrodes and bending occurs towards the anode. Here, we seek to unravel the factors underlying the motion of ionomer cilia in salt solution through a physically-based model of actuation. In our model, electrochemistry is described through the Poisson-Nernst-Planck system in terms of concentrations of cations and anions and voltage, which is solved through the finite element method. Based on computer simulations, we establish that Maxwell stress is the main driving force for the motion of the cilia.
UR - http://www.scopus.com/inward/record.url?scp=85076469937&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85076469937&partnerID=8YFLogxK
U2 - 10.1115/DSCC2019-9060
DO - 10.1115/DSCC2019-9060
M3 - Conference contribution
T3 - ASME 2019 Dynamic Systems and Control Conference, DSCC 2019
BT - Rapid Fire Interactive Presentations
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2019 Dynamic Systems and Control Conference, DSCC 2019
Y2 - 8 October 2019 through 11 October 2019
ER -