Unbalance identification in a large steam turbogenerator using model-based identification and modal foundation

被引：0

作者：

Bachschmid, N ^{[1
]}

Pennacchi, P ^{[1
]}

Vania, A ^{[1
]}

Gregori, L ^{[1
]}

Zanetta, GA ^{[1
]}

机构：

[1] Politecn Milan, Dipartimento Meccan, Milan, Italy

来源：

VIBRATIONS IN ROTATING MACHINERY | 2004年 / 2004卷 / 02期

关键词：

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：

Model based techniques are often employed in diagnostics of rotating machines to locate and to evaluate the severity of a malfunction. The use of a reliable model can increase the accuracy of the identification. Rigid supports or Jumped mass pedestals are not always enough to account for the foundation dynamics; a modal representation of the supports can improve the identification results. This method is discussed and validated using experimental data from a 320 MW steam turbogenerator. To the best of the authors' knowledge, this is the first case of fault identification on real data from a large machine, where the supporting structure is accounted for by means of a modal model.

引用

页码：383 / 392

页数：10

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