Dynamic stiffness of natural rubber cylinders in the audible frequency range using wave guides

被引：0
|
作者：
Kari, L
Eriksson, P
Stenberg, B
机构：
[1] Royal Inst Technol, Marcus Wallenberg Lab Sound & Vibrat Res, Dept Vehicle Engn, Stockholm, Sweden
[2] Royal Inst Technol, Dept Polymer Technol, Stockholm, Sweden
来源：
KAUTSCHUK GUMMI KUNSTSTOFFE | 2001年 / 54卷 / 03期
关键词：
dynamic stiffness; natural rubber; vibration isolator; fractional derivative; reduced variable; mode; wave guide;
D O I：
暂无
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
This paper applies a wave guide model to analyze the temperature influence on the dynamic stiffness of a cylindrical vibration isolator of natural rubber in the audible frequency range; covering 20 to 20 000 Hz and - 60 to + 60 degreesC. A nearly incompressible material model is applied with shear modulus based on a fractional derivative model, thereby reducing the parameter number needed to accurately fit measurement results. Employing the method of reduced variables enlarges the frequency range available from measurements. Of particular interest are the stiffness peaks and troughs, the low-frequency stiffness, the propagating and nonpropagating modes, and their dependence on temperature.
引用
收藏
页码：106 / +
页数：7
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