Improving exciter performance in modal testing

被引：0
|
作者：
Comstock, T [1 ]
机构：
[1] Univ Tennessee, Sch Engn, Martin, TN 38237 USA
来源：
IMAC - PROCEEDINGS OF THE 17TH INTERNATIONAL MODAL ANALYSIS CONFERENCE, VOLS I AND II | 1999年 / 3727卷
关键词：
D O I：
暂无
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
Analytical and experimental results are presented to reveal the various factors that effect the force frequency spectrum obtained when using impact hammer and electromagnetic exciters. The transient response of a piezoelectric impact hammer is related to its time constant. A diode and acceleration compensation techniques are proposed for improving the hammer's force signal. The mass of an electromagnetic exciter and the type of driving source used for excitation are related to the force response. A feedback process is proposed for improving the force performance in modal tests.
引用
收藏
页码：1770 / 1775
页数：6
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