Dynamic response control of thin-walled beams to blast pulses using structural tailoring and piezoelectric actuation

L. Librescu, Sung Soo Na

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

An integrated dual approach aimed at controlling the dynamic response of anisotropic cantilevered thin-walled beams to blast and sonic-boom loading is presented. The approach is based upon the simultaneous implementation of structural tailoring and adaptive materials technology. Whereas structural tailoring uses the anisotropy properties of advanced composite materials, the adaptive materials technology exploits the converse effect of piezoactuators bonded or embedded into the host structure. A combined dynamic control law relating the piezoelectrically bending moment induced at the beam tip with the various kinematic response quantities is implemented and its effects upon the closed-loop dynamic response characteristics are investigated. The obtained results reveal the powerful role played by abovementioned integrated control methodology towards enhancing the dynamic response of thin-walled beam cantilevers to transient loading.

Original languageEnglish
Pages (from-to)497-504
Number of pages8
JournalJournal of Applied Mechanics, Transactions ASME
Volume65
Issue number2
Publication statusPublished - 1998 Jun 1
Externally publishedYes

Fingerprint

blasts
dynamic response
actuation
Dynamic response
pulses
sonic booms
bending moments
dynamic control
Integrated control
piezoelectric actuators
cantilever beams
Cantilever beams
Bending moments
Kinematics
Anisotropy
kinematics
methodology
anisotropy
composite materials
Composite materials

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials

Cite this

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