Performance of friction dampersin geometric mistuned bladed disk assembly subjected to random excitations

被引：11

作者：

Cha, Douksoon ^{[1
]}

机构：

[1] Korea Univ Technol & Educ, Dept Mech Design Engn, Chungjeol Ro 1600, Cheonan 31253, South Korea

来源：

JOURNAL OF SOUND AND VIBRATION | 2018年 / 426卷

关键词：

Bladed disk assembly; Geometric mistuning; Friction damper; Correlation of excitation; Optimal normal load; NONLINEAR MULTIHARMONIC VIBRATIONS; FORCED RESPONSE; WHITE-NOISE; STATISTICS;

D O I：

10.1016/j.jsv.2018.04.012

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

In this study, the performance of friction dampers of a geometric mistuned bladed disk assembly is examined under random excitations. The results are represented by non-dimensional variables. It is shown that the performance of the blade-to-blade damper can deteriorate when the correlated narrow band excitations have a dominant frequency near the 1st natural frequency of the bladed disk assembly. Based on a simple model of a geometric mistuned bladed disk assembly, the analytical technique shows an efficient way to design friction dampers. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：34 / 53

页数：20