Finite difference formulation for modal parameter estimation

被引：7

作者：

Yin, HP ^{[1
]}

Duhamel, D ^{[1
]}

机构：

[1] Ecole Natl Ponts & Chaussees, CERMMO, F-77455 Marne La Vallee 2, France

来源：

JOURNAL OF SOUND AND VIBRATION | 2000年 / 231卷 / 02期

关键词：

D O I：

10.1006/jsvi.1999.2599

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

This paper deals with a new finite difference method for modal parameter estimation. This method uses formulas which involve differences between the frequency response data at three frequencies in the vicinity of a natural frequency to estimate this natural frequency together with the damping and the residue. Compared with the two-point finite difference method, tests with both analytical and experimental frequency response data with not well-separated modes show better estimations when using the three-point difference method. (C) 2000 Academic Press.

引用

页码：259 / 275

页数：17

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