Vibration and dynamic response control of adaptive cantilevers carrying externally mounted stores

Liviu Librescu, Sung Soo Na

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

Abstract

The vibrational and dynamic response control of cantilevers carrying externally mounted stores is investigated. The cantilevered structure is modeled as a thin-walled beam of arbitrary cross-section and incorporates a number of non- classical effects such as transverse shear, secondary warping, anisotropy of constituent materials and heterogeneity of the construction. The control is carried out via a dynamic bending moment applied at the tip of the structure. A feedback control law relating the boundary moment with one of the kinematical variables characterizing the response of the beam is implemented, and its results upon the closed-loop eigenfrequencies and dynamic response are highlighted. The obtained numerical results emphasize the efficiency of this control methodology to enhance, without weight penalties, vibrational and dynamic response behavior and inhibit and even suppress the occurrence of the resonance phenomenon.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Place of PublicationBellingham, WA, United States
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages507-517
Number of pages11
Volume3039
ISBN (Print)0819424528
Publication statusPublished - 1997 Dec 1
Externally publishedYes
EventSmart Structures and Materials 1997: Mathematics and Control in Smart Structures - San Diego, CA, USA
Duration: 1997 Mar 31997 Mar 6

Other

OtherSmart Structures and Materials 1997: Mathematics and Control in Smart Structures
CitySan Diego, CA, USA
Period97/3/397/3/6

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Librescu, L., & Na, S. S. (1997). Vibration and dynamic response control of adaptive cantilevers carrying externally mounted stores. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3039, pp. 507-517). Bellingham, WA, United States: Society of Photo-Optical Instrumentation Engineers.