Mistuning Identification of Bladed Disks Using a Fundamental Mistuning Model—Part II: Application
| Autor: | D. M. Feiner, J. H. Griffin |
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| Rok vydání: | 2004 |
| Předmět: | |
| Zdroj: | Journal of Turbomachinery. 126:159-165 |
| ISSN: | 1528-8900 0889-504X |
| DOI: | 10.1115/1.1643914 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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