FORCED RESPONSE ANALYSIS OF MISTUNED TURBINE BLADINGS

被引：0

作者：

Siewert, Christian ^{[1
]}

Stueer, Heinrich ^{[1
]}

机构：

[1] Siemens AG, Energy Sector, Steam Turbine Engn CT 2 2, D-45478 Mulheim, Germany

来源：

PROCEEDINGS OF THE ASME TURBO EXPO 2010, VOL 6, PTS A AND B | 2010年

关键词：

VIBRATION;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

It is well-known that the vibrational behavior of a mistuned bladed disk differs strongly from that of a tuned bladed disk. A large number of publications dealing with the dynamics of a mistuned bladed disk is available in the literature. Nearly all published mechanical models for a mistimed bladed disk consider the mistuning in terms of a perturbation of the mass and/or the stiffness matrix or in terms of a perturbation of the tuned system natural frequencies. Therefore, the possible effect of a damping mistuning is neglected in these models. In this paper a model of a mistuned bladed disk with a combined damping and natural frequency mistiming is presented. This model is based on the well-known Fundamental Model of Mistuning with a novel extension to include the damping mistuning in a straight-forward way.

引用

页码：1145 / 1156

页数：12