Application of projection-based model reduction to finite-element plate models for two-dimensional traveling waves Academic Article

abstract

• A finite element (FE) model simulates an unconstrained aluminum thin plate to which four macro-fiber composites are bonded. This plate model is experimentally validated for single and multiple inputs. While a single input excitation results in the frequency response functions and operational deflection shapes, two input excitations under prescribed conditions result in tailored traveling waves. The emphasis of this article is the application of projection-based model reduction techniques to scale-down the large-scale FE plate model. Four model reduction techniques are applied and their performances are studied. This article also discusses the stability issues associated with the rigid-body modes. Furthermore, the reduced-order models are utilized to simulate the steady-state frequency and time response of the plate. The results are in agreement with the experimental and the full-scale FE model results.

authors

• Tarazaga, Pablo

published proceedings

• JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES

author list (cited authors)

• Malladi, V., Albakri, M. I., Gugercin, S., & Tarazaga, P. A.

citation count

• 11

publication date

• August 2017

publisher

• SAGE Publications  Publisher

published in

• Journal of Intelligent Material Systems and Structures  Journal

keywords

• Balanced Truncation
• Finite Element
• MODEL REDUCTION
• Optimal H-2 Approximation
• Petrov-galerkin
• Piezo-ceramics
• Plates
• Traveling Waves

Digital Object Identifier (DOI)

• 10.1177/1045389X16679295

start page

• 1886

end page

• 1904

volume

• 28

issue

• 14

URL

• http://dx.doi.org/10.1177/1045389x16679295