GENERAL DYNAMIC EQUATION AND DYNAMICAL CHARACTERISTICS OF VISCOELASTIC TIMOSHENKO BEAMS

In this paper,a governing differential equation of viscoelastic Timoshenko beamincluding both extension and shear viscosity is developed in the time domain by directmethod.To measure the complex moduli and three parameters of standard linear solid,theforced vibration technique of beam is successfull...

Full description

Saved in:
Bibliographic Details
Published in:Applied mathematics and mechanics 1990-02, Vol.11 (2), p.177-184
Main Author: 肖灿章 计伊周 常保平
Format: Article
Language:English
Subjects:
damping
DYNAMIC
dynamical
governing
Kelvin
modulus
relaxation
viscoelastic
viscosity
viscous
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper,a governing differential equation of viscoelastic Timoshenko beamincluding both extension and shear viscosity is developed in the time domain by directmethod.To measure the complex moduli and three parameters of standard linear solid,theforced vibration technique of beam is successfully used for PCL and PMMA specimens.The dynamical characteristics of viscoelastic Timoshenko beams,especially the dampingproperties,are derived from a considerable number of numerical computations.Theanalyses show that the viscosity of materials has great influence on dynamicalcharacteristics of structures,especially on damping,and the standard linear solid model isthe better one for describing the dynamic behavior of high viscous materials.
ISSN:0253-4827
1573-2754
DOI:10.1007/BF02014542