Dynamic response control of cantilevers to time-dependent external excitations using optimal feedback control and smart materials technology

Sung Soo Na, Liviu Librescu

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

Abstract

The problem of controlling the dynamic response of cantilevers exposed to blast loading is addressed. The structure to be controlled consists of a thin-walled beam of a closed cross-section contour which encompasses a number of non-classical features such as transverse shear, primary and secondary warping and anisotropy of the constitutent materials. The control is achieved via the use of the directionality property featured by advanced composite materials and of the actuating capabilities provided by piezoelectric devices which are bonded or embedded into the host structure. The cases of the piezoactuators spread over the entire span of the structure or in the form of a patch are considered, and issues related with the influence of the patch location upon the control efficiency are discussed. Other issues related with the minimization of the input power required, and implications of the limitation of control input voltage are also addressed.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsV.V. Varadan
Pages625-636
Number of pages12
Volume3323
DOIs
Publication statusPublished - 1998
Externally publishedYes
EventSmart Structures and Materials 1998 Mathematics and Control in Smart Structures - San Diego, CA, United States
Duration: 1998 May 21998 May 5

Other

OtherSmart Structures and Materials 1998 Mathematics and Control in Smart Structures
CountryUnited States
CitySan Diego, CA
Period98/5/298/5/5

Fingerprint

smart materials
Intelligent materials
dynamic response
feedback control
Feedback control
Dynamic response
Piezoelectric devices
excitation
piezoelectric actuators
blasts
Anisotropy
shear
anisotropy
optimization
composite materials
cross sections
Composite materials
Electric potential
electric potential

Keywords

  • Dynamic response
  • Optimal control
  • Piezoactuators
  • Piezopatch
  • Structural tailoring

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Na, S. S., & Librescu, L. (1998). Dynamic response control of cantilevers to time-dependent external excitations using optimal feedback control and smart materials technology. In V. V. Varadan (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3323, pp. 625-636) https://doi.org/10.1117/12.316300

Dynamic response control of cantilevers to time-dependent external excitations using optimal feedback control and smart materials technology. / Na, Sung Soo; Librescu, Liviu.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / V.V. Varadan. Vol. 3323 1998. p. 625-636.

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

Na, SS & Librescu, L 1998, Dynamic response control of cantilevers to time-dependent external excitations using optimal feedback control and smart materials technology. in VV Varadan (ed.), Proceedings of SPIE - The International Society for Optical Engineering. vol. 3323, pp. 625-636, Smart Structures and Materials 1998 Mathematics and Control in Smart Structures, San Diego, CA, United States, 98/5/2. https://doi.org/10.1117/12.316300
Na SS, Librescu L. Dynamic response control of cantilevers to time-dependent external excitations using optimal feedback control and smart materials technology. In Varadan VV, editor, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3323. 1998. p. 625-636 https://doi.org/10.1117/12.316300
Na, Sung Soo ; Librescu, Liviu. / Dynamic response control of cantilevers to time-dependent external excitations using optimal feedback control and smart materials technology. Proceedings of SPIE - The International Society for Optical Engineering. editor / V.V. Varadan. Vol. 3323 1998. pp. 625-636
@inproceedings{72cc557ef4af477eb97d8be2efaba82f,
title = "Dynamic response control of cantilevers to time-dependent external excitations using optimal feedback control and smart materials technology",
abstract = "The problem of controlling the dynamic response of cantilevers exposed to blast loading is addressed. The structure to be controlled consists of a thin-walled beam of a closed cross-section contour which encompasses a number of non-classical features such as transverse shear, primary and secondary warping and anisotropy of the constitutent materials. The control is achieved via the use of the directionality property featured by advanced composite materials and of the actuating capabilities provided by piezoelectric devices which are bonded or embedded into the host structure. The cases of the piezoactuators spread over the entire span of the structure or in the form of a patch are considered, and issues related with the influence of the patch location upon the control efficiency are discussed. Other issues related with the minimization of the input power required, and implications of the limitation of control input voltage are also addressed.",
keywords = "Dynamic response, Optimal control, Piezoactuators, Piezopatch, Structural tailoring",
author = "Na, {Sung Soo} and Liviu Librescu",
year = "1998",
doi = "10.1117/12.316300",
language = "English",
volume = "3323",
pages = "625--636",
editor = "V.V. Varadan",
booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",

}

TY - GEN

T1 - Dynamic response control of cantilevers to time-dependent external excitations using optimal feedback control and smart materials technology

AU - Na, Sung Soo

AU - Librescu, Liviu

PY - 1998

Y1 - 1998

N2 - The problem of controlling the dynamic response of cantilevers exposed to blast loading is addressed. The structure to be controlled consists of a thin-walled beam of a closed cross-section contour which encompasses a number of non-classical features such as transverse shear, primary and secondary warping and anisotropy of the constitutent materials. The control is achieved via the use of the directionality property featured by advanced composite materials and of the actuating capabilities provided by piezoelectric devices which are bonded or embedded into the host structure. The cases of the piezoactuators spread over the entire span of the structure or in the form of a patch are considered, and issues related with the influence of the patch location upon the control efficiency are discussed. Other issues related with the minimization of the input power required, and implications of the limitation of control input voltage are also addressed.

AB - The problem of controlling the dynamic response of cantilevers exposed to blast loading is addressed. The structure to be controlled consists of a thin-walled beam of a closed cross-section contour which encompasses a number of non-classical features such as transverse shear, primary and secondary warping and anisotropy of the constitutent materials. The control is achieved via the use of the directionality property featured by advanced composite materials and of the actuating capabilities provided by piezoelectric devices which are bonded or embedded into the host structure. The cases of the piezoactuators spread over the entire span of the structure or in the form of a patch are considered, and issues related with the influence of the patch location upon the control efficiency are discussed. Other issues related with the minimization of the input power required, and implications of the limitation of control input voltage are also addressed.

KW - Dynamic response

KW - Optimal control

KW - Piezoactuators

KW - Piezopatch

KW - Structural tailoring

UR - http://www.scopus.com/inward/record.url?scp=0032401276&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032401276&partnerID=8YFLogxK

U2 - 10.1117/12.316300

DO - 10.1117/12.316300

M3 - Conference contribution

VL - 3323

SP - 625

EP - 636

BT - Proceedings of SPIE - The International Society for Optical Engineering

A2 - Varadan, V.V.

ER -