TORSIONAL DYNAMICS OF THE BIRNBOIM-SCHRAG MULTIPLE LUMP RESONATOR STUDIED USING TV-HOLOGRAPHY

被引：6

作者：

ELLINGSRUD, S

KNUDSEN, KD

MIKKELSEN, A

ELGSAETER, A

MALMO, JT

机构：

[1] UNIV TRONDHEIM,NORWEGIAN BIOPOLYMER LAB,DEPT PHYS,SEM SAELANDS VEI 9,N-7034 TRONDHEIM,NORWAY

[2] FDN SCI & IND RES,TRONDHEIM,NORWAY

来源：

RHEOLOGICA ACTA | 1992年 / 31卷 / 05期

关键词：

MULTIPLE LUMP RESONATOR; POLYMERS; DYNAMIC VISCOELASTICITY; ESPI; TV-HOLOGRAPHY;

D O I：

10.1007/BF00701125

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

We have studied the torsional dynamics of the Birnboim-Schrag multiple lump resonator (MLR) using TV-holography. The relative torsional displacement amplitudes have been determined for all resonator lumps at their five resonance modes. Due to the low vibration amplitudes for the highest frequency mode, we only give a rough estimate of the relative torsional displacements for this resonance. For some lumps, the observed relative displacement amplitudes deviate by as much as a factor of 2 from the predictions of the dumbbell theory commonly used to analyze MLR dynamics. The experimental data agree well with the recent theoretical analysis carried out by Mikkelsen et al. (1992).

引用

页码：459 / 470

页数：12