Comparison of active, passive, and hybrid damping treatments in structural design

Duane E. Veley, S. S. Rao

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

7 Scopus citations

Abstract

The optimum design of structures is obtained for three different types of damping treatments and the resulting designs are compared. The three types of damping treatments considered are constrained layer damping, active constrained layer damping and active damping. Piezoelectric material is used for actuators and sensors in the active damping and active constrained layer damping cases. The constraining layer of the active constrained layer damping case is the piezoelectric actuator. The structure is designed for minimum weight with constraints on the frequency and damping ratio. The problem is modeled using a two dimensional finite element based on the QUAD4 element. The QUAD4 element is modified to include viscoelastic and piezoelectric layers in the composite layup. The damping treatment is also allowed to move on the structure and to distort its shape so as to improve the damping characteristics of the initial design. Both beam and plate structures are considered to illustrate this concept. A proportional-derivative controller is used for the active control of the beam and the linear quadratic regulator (LQR) is used to design the active controller for the plates.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsConor D. Johnson
Pages184-195
Number of pages12
StatePublished - Jan 1 1996
Externally publishedYes
EventSmart Structures and Materials 1996: Passive Damping and Isolation - San Diego, CA, USA
Duration: Feb 26 1996Feb 27 1996

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume2720
ISSN (Print)0277-786X

Other

OtherSmart Structures and Materials 1996: Passive Damping and Isolation
CitySan Diego, CA, USA
Period2/26/962/27/96

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Veley, D. E., & Rao, S. S. (1996). Comparison of active, passive, and hybrid damping treatments in structural design. In C. D. Johnson (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (pp. 184-195). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 2720).