A reduced-order model for transient analysis of bladed disk forced response

被引:29
作者
Ayers, J. P. [1 ]
Feiner, D. M. [1 ]
Griffin, J. H. [1 ]
机构
[1] Carnegie Mellon Univ, Dept Mech Engn, Pittsburgh, PA 15213 USA
来源
JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME | 2006年 / 128卷 / 03期
关键词
D O I
10.1115/1.2185675
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
A method for predicting the vibratory response of bladed disks under high engine acceleration rates is developed. The method is based on the Fundamental Mistuning Model, an existing reduced order model for predicting the steady-state vibratory response. In addition, a criterion is developed for a critical engine acceleration rate, above which transient effects play a large role in the response. It is shown that military engines operate at acceleration rates above this critical value and therefore transient effects are important in practice.
引用
收藏
页码:466 / 473
页数:8
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