Mistuning Identification of Bladed Disks Using a Fundamental Mistuning Model-Part II: Application (2003-GT-38953)
Mistuning Identification of Bladed Disks Using a Fundamental Mistuning Model-Part II: Application (2003-GT-38953)
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DOI：
10.1115/1.1643914
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发表时间：
2004
影响因子：
1.7
通讯作者：
J. Griffin;D. Feiner
中科院分区：
文献类型：
--
作者：
J. Griffin;D. Feiner
本文是识别叶片盘失调的两部分研究的第二部分。它对基于系统整体振动响应测量的失谐识别新方法进行了实验验证。作为一种基于系统的方法，这种方法特别适合于整体叶片转子，其叶片无法拆卸以进行单独测量。该方法基于最近开发的失谐降阶模型（称为基本失谐模型 (FMM)），适用于孤立的模态族。 FMM 系统识别的两个版本应用于实验数据：一个基本版本需要对系统属性有一些先验知识，另一个稍微复杂一点的版本完全根据实验数据确定失谐。
This paper is the second in a two-part study of identifying mistuning in bladed disks. It presents experimental validation of a new method of mistuning identification based on measurements of the vibratory response of the system as a whole. As a system-based method, this approach is particularly suited to integrally bladed rotors, whose blades cannot be removed for individual measurements. The method is based on a recently developed reduced-order model of mistuning called the fundamental mistuning model (FMM) and is applicable to isolated families of modes. Two versions of FMM system identification are applied to the experimental data: a basic version that requires some prior knowledge of the system's properties, and a somewhat more complex version that determines the mistuning completely from experimental data.