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Issue:
Fast implementation for PolyMAX modal identification algorithm
Author(s):
SUN Xin-hui
,
HAO Mu-ming
,
WANG Huai-wei
Pages:
6
-
8,18
Year:
2011
Issue:
10
Journal:
Journal of Vibration and Shock
Keyword:
模态参数识别
;
PolyMAX算法
;
缩减正则方程
;
快速实现
;
稳定图
;
Abstract:
PolyMAX是近几年发展起来的宽频带模态参数识别算法,该方法在抗干扰能力、识别密集模态、以及处理大阻尼复杂结构方面具有非常好的特性。通过避免缩减正则方程计算中的矩阵求逆以及乘法运算,实现了该算法的快速实现。最后采用七自由度仿真算例与航空发动机涡轮盘实测算例进行验证。结果表明:快速实现能够在对识别精度影响很小的情况下显著提高参数识别速度。
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