The influence of the parameter constraint on the stability of the poles and the discrimination capabilities of the stabilisation diagrams

被引：32

作者：

Cauberghe, B ^{[1
]}

Guillaume, P ^{[1
]}

Verboven, P ^{[1
]}

Vanlanduit, S ^{[1
]}

Parloo, E ^{[1
]}

机构：

[1] Vrije Univ Brussels, TW WERK, Dept Engn Mech, Acoust & Vibrat Res Grp, B-1050 Brussels, Belgium

来源：

MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 2005年 / 19卷 / 05期

关键词：

D O I：

10.1016/j.ymssp.2004.07.007

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper analyses the influence of the parameter constraint for modal parameter estimation (MPE) methods and its impact on the quality of the stabilisation diagram. It is shown that by a. proper choice of the parameter constraint a distinction can be made between physical and mathematical poles based on the sign of the damping. As a result the quality of stabilisation diagrams can be improved. This approach can be applied for several well-known modal parameter estimation methods and the user can benefit from this. Several MPE applications in aerospace, automotive and civil engineering show the implication of the constraint and the specific advantages of obtaining an easy-to-interpret stabilisation diagram. (c) 2004 Elsevier Ltd. All rights reserved.

引用

页码：989 / 1014

页数：26

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