Displacement and blocking force modeling for piezoelectric uniflex microactuators

Hareesh K.R. Kommepalli, Han G. Yu, Srinivas A. Tadigadapa, Christopher D. Rahn, Susan Trolier-Mckinstry, Christopher L. Muhlstein

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Microactuators provide controlled motion and force for applications ranging from RF switches to rate gyros. Large amplitude response in piezoelectric actuators requires amplification of their small strain. This paper studies a uniflex microactuator that combines the strain amplification mechanisms of a unimorph and flexural motion to produce large displacement and blocking force. An analytical model is developed with three connected beams and a reflective symmetric boundary condition that predicts actuator displacement and blocking force as a function of the applied voltage. The model shows that the uniflex design requires appropriate parameter ranges, especially the clearance between the unimorph and aluminum cap, to ensure that both the unimorph and flexural amplification effects are realized. With a weakened joint at the unimorph/cap interface, the model accurately predicts the displacement and blocking force of four actuators.

Original languageEnglish (US)
Title of host publicationASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE2008
Pages547-552
Number of pages6
DOIs
StatePublished - Dec 1 2008
EventASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE2008 - Brooklyn, NY, United States
Duration: Aug 3 2008Aug 6 2008

Publication series

NameProceedings of the ASME Design Engineering Technical Conference
Volume4

Other

OtherASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE2008
CountryUnited States
CityBrooklyn, NY
Period8/3/088/6/08

Fingerprint

Microactuator
Microactuators
Amplification
Actuators
Modeling
Actuator
Piezoelectric actuators
Predict
Large Displacements
Piezoelectric Actuator
Motion
Analytical models
Clearance
Switches
Boundary conditions
Analytical Model
Aluminum
Switch
Voltage
Electric potential

All Science Journal Classification (ASJC) codes

  • Modeling and Simulation
  • Mechanical Engineering
  • Computer Science Applications
  • Computer Graphics and Computer-Aided Design

Cite this

Kommepalli, H. K. R., Yu, H. G., Tadigadapa, S. A., Rahn, C. D., Trolier-Mckinstry, S., & Muhlstein, C. L. (2008). Displacement and blocking force modeling for piezoelectric uniflex microactuators. In ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE2008 (pp. 547-552). (Proceedings of the ASME Design Engineering Technical Conference; Vol. 4). https://doi.org/10.1115/DETC2008-49897
Kommepalli, Hareesh K.R. ; Yu, Han G. ; Tadigadapa, Srinivas A. ; Rahn, Christopher D. ; Trolier-Mckinstry, Susan ; Muhlstein, Christopher L. / Displacement and blocking force modeling for piezoelectric uniflex microactuators. ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE2008. 2008. pp. 547-552 (Proceedings of the ASME Design Engineering Technical Conference).
@inproceedings{5d043ac6088347ce82496a9901f9b0c0,
title = "Displacement and blocking force modeling for piezoelectric uniflex microactuators",
abstract = "Microactuators provide controlled motion and force for applications ranging from RF switches to rate gyros. Large amplitude response in piezoelectric actuators requires amplification of their small strain. This paper studies a uniflex microactuator that combines the strain amplification mechanisms of a unimorph and flexural motion to produce large displacement and blocking force. An analytical model is developed with three connected beams and a reflective symmetric boundary condition that predicts actuator displacement and blocking force as a function of the applied voltage. The model shows that the uniflex design requires appropriate parameter ranges, especially the clearance between the unimorph and aluminum cap, to ensure that both the unimorph and flexural amplification effects are realized. With a weakened joint at the unimorph/cap interface, the model accurately predicts the displacement and blocking force of four actuators.",
author = "Kommepalli, {Hareesh K.R.} and Yu, {Han G.} and Tadigadapa, {Srinivas A.} and Rahn, {Christopher D.} and Susan Trolier-Mckinstry and Muhlstein, {Christopher L.}",
year = "2008",
month = "12",
day = "1",
doi = "10.1115/DETC2008-49897",
language = "English (US)",
isbn = "9780791843284",
series = "Proceedings of the ASME Design Engineering Technical Conference",
pages = "547--552",
booktitle = "ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE2008",

}

Kommepalli, HKR, Yu, HG, Tadigadapa, SA, Rahn, CD, Trolier-Mckinstry, S & Muhlstein, CL 2008, Displacement and blocking force modeling for piezoelectric uniflex microactuators. in ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE2008. Proceedings of the ASME Design Engineering Technical Conference, vol. 4, pp. 547-552, ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE2008, Brooklyn, NY, United States, 8/3/08. https://doi.org/10.1115/DETC2008-49897

Displacement and blocking force modeling for piezoelectric uniflex microactuators. / Kommepalli, Hareesh K.R.; Yu, Han G.; Tadigadapa, Srinivas A.; Rahn, Christopher D.; Trolier-Mckinstry, Susan; Muhlstein, Christopher L.

ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE2008. 2008. p. 547-552 (Proceedings of the ASME Design Engineering Technical Conference; Vol. 4).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Displacement and blocking force modeling for piezoelectric uniflex microactuators

AU - Kommepalli, Hareesh K.R.

AU - Yu, Han G.

AU - Tadigadapa, Srinivas A.

AU - Rahn, Christopher D.

AU - Trolier-Mckinstry, Susan

AU - Muhlstein, Christopher L.

PY - 2008/12/1

Y1 - 2008/12/1

N2 - Microactuators provide controlled motion and force for applications ranging from RF switches to rate gyros. Large amplitude response in piezoelectric actuators requires amplification of their small strain. This paper studies a uniflex microactuator that combines the strain amplification mechanisms of a unimorph and flexural motion to produce large displacement and blocking force. An analytical model is developed with three connected beams and a reflective symmetric boundary condition that predicts actuator displacement and blocking force as a function of the applied voltage. The model shows that the uniflex design requires appropriate parameter ranges, especially the clearance between the unimorph and aluminum cap, to ensure that both the unimorph and flexural amplification effects are realized. With a weakened joint at the unimorph/cap interface, the model accurately predicts the displacement and blocking force of four actuators.

AB - Microactuators provide controlled motion and force for applications ranging from RF switches to rate gyros. Large amplitude response in piezoelectric actuators requires amplification of their small strain. This paper studies a uniflex microactuator that combines the strain amplification mechanisms of a unimorph and flexural motion to produce large displacement and blocking force. An analytical model is developed with three connected beams and a reflective symmetric boundary condition that predicts actuator displacement and blocking force as a function of the applied voltage. The model shows that the uniflex design requires appropriate parameter ranges, especially the clearance between the unimorph and aluminum cap, to ensure that both the unimorph and flexural amplification effects are realized. With a weakened joint at the unimorph/cap interface, the model accurately predicts the displacement and blocking force of four actuators.

UR - http://www.scopus.com/inward/record.url?scp=81155126124&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=81155126124&partnerID=8YFLogxK

U2 - 10.1115/DETC2008-49897

DO - 10.1115/DETC2008-49897

M3 - Conference contribution

AN - SCOPUS:81155126124

SN - 9780791843284

T3 - Proceedings of the ASME Design Engineering Technical Conference

SP - 547

EP - 552

BT - ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE2008

ER -

Kommepalli HKR, Yu HG, Tadigadapa SA, Rahn CD, Trolier-Mckinstry S, Muhlstein CL. Displacement and blocking force modeling for piezoelectric uniflex microactuators. In ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE2008. 2008. p. 547-552. (Proceedings of the ASME Design Engineering Technical Conference). https://doi.org/10.1115/DETC2008-49897