Dynamic scaling of viscoelastic elements

Yew Wing Chan; J. R. Wright; Geoffrey R. Tomlinson

doi:10.1117/12.208899

5 May 1995 Dynamic scaling of viscoelastic elements

Yew Wing Chan, J. R. Wright, Geoffrey R. Tomlinson

Proceedings Volume 2445, Smart Structures and Materials 1995: Passive Damping; (1995) https://doi.org/10.1117/12.208899
Event: Smart Structures and Materials '95, 1995, San Diego, CA, United States

Abstract

The use of scaled models to validate the dynamic characteristics of structures is common. For linear elastic structures, the dynamic characteristics such as natural frequencies can be determined from the scaled models by a scaling factor. This scaling factor is the ratio of the physical dimensions between the scaled model and the structure. However, in the case of viscoelastic elements, the viscoelastic properties of the material are frequency dependent. Hence, in order to use the results of the scaled model, the scaling factor must include the frequency dependent characteristics of the viscoelastic material. In this paper, simple elements are used to illustrate the importance of including the material viscoelastic properties in determining the scaling factor and a procedure is described which can be used to determine the dynamic characteristics of scaled models.

Citation Download Citation

Yew Wing Chan, J. R. Wright, and Geoffrey R. Tomlinson "Dynamic scaling of viscoelastic elements", Proc. SPIE 2445, Smart Structures and Materials 1995: Passive Damping, (5 May 1995); https://doi.org/10.1117/12.208899

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