The effect of viscoelastic brain on the dynamic characteristics of the human skull-brain system

被引：0

作者：

A. Charalambopoulos

D. I. Fotiadis

A. Ktena

C. V. Massalas

机构：

[1] Institute of Chemical Engineering and High Temperature Chemical Processes,Department of Computer Science

[2] University of Ioannina,Department of Mathematics

[3] University of Ioannina,undefined

来源：

Acta Mechanica | 1998年 / 130卷

关键词：

Mathematical Model; Dynamical System; Fluid Dynamics; Physical Parameter; Excellent Agreement;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In this paper, we present a solution to the problem of free vibrations of the human head system taking into account the dissipative behaviour of the brain. The mathematical model is based on the three-dimensional theory of viscoelasticity and the representation of the displacement field in terms of the Navier eigenvectors. The frequency equation is solved numerically and the results for eigenfrequencies and damping coefficients are presented for various geometrical and physical parameters of the system. The results obtained are in excellent agreement with the measured eigenfrequencies, and the predicted damping coefficients are within the order of magnitude of the measured ones. From the proposed analysis we have obtained the information that the role of the viscoelastic neck as well as the viscoelastic properties of the skull-brain system have to be simultaneously taken into account in the study of the frequency spectrum of the human head. The analysis of the realistic model is under preparation.

引用

页码：159 / 173

页数：14