VIBRATIONS OF BLADES BUNCHES

被引：0

作者：

Pust, L. ^{[1
]}

Pesek, L. ^{[1
]}

机构：

[1] Inst Thermomech AS CR, Vvi, Prague 18200, Czech Republic

来源：

ENGINEERING MECHANICS 2014 | 2014年

关键词：

Damping; Dry friction; Five-blades-bunch; Harmonic excitation; Response curve;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Paper describes a mathematical model for analyzing the dynamic characteristics of five-blades bunch with different damping connections among individual blades. The connections of blades by means of special rubber elements either with the fixed contact with neighboring blades or with one-sided slip is presented. Systems with dry friction connections among blades by means of direct contacts or by inserted dry friction elements are described as well. As an example of analysis results, response curves of five-blades-bunch excited on first blade at different dry friction force in the first bending resonance is shown. Elaborated analysis create the basic theoretical background for evaluation of measurement on experimental bladed disk set in the laboratory of Institute of Thermomechanics of ASCR and it is also applied for evaluation of effectiveness of methods for suppression of forced vibration of blades.

引用

页码：520 / 523

页数：4