Experimental identification of damping

被引：12

作者：

Barbieri, N ^{[1
]}

Novak, PR ^{[1
]}

Barbieri, R ^{[1
]}

机构：

[1] PUCPR, Curso Engn Mecan, BR-80215901 Curitiba, Parana, Brazil

来源：

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES | 2004年 / 41卷 / 13期

关键词：

damping; identification; reduced model; modal analysis;

D O I：

10.1016/j.ijsolstr.2004.02.006

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Four different procedures for identification of damping in mechanical systems are utilized. The procedures are based on results of computational simulations of mathematical models obtained through the finite element method-FEM and experimental procedures based on modal analysis. The rational fraction polynomial method (RFPM) is used to modal analysis. The validation of the numeric models is done through confrontations of computational results and experimental data obtained by accelerometers or proximity sensors. Procedures for reduction of the numeric models are used due to the fact that only few points are used to obtain the experimental values. Three different mechanical systems are analyzed: system of two degrees-of-freedom (two bars in balancing), thin plate clamped in an extremity and free in the other, and electric transmission line cable submitted to an axial load. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：3585 / 3594

页数：10

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