Experiment-Based Development of Phenomenological Mistuning Models for Bladed Disks
Abstract
The major objectives of this research were: (1) to demonstrate and quantify the high sensitivity of bladed disks to mistuning, and in particular, the occurrence of vibration localization phenomena and associated forced response amplitude increases, (2) to achieve an understanding of the various sources and physical mechanisms of mistuning for a typical bladed disk and to develop the corresponding models, and (3) to utilize the mistuning models developed to identify the key physical parameters governing mistuning effects, and in particular, to explore the feasibility of intentional blade mistuning. The importance of the research stems from the fact that small, random blade mistuning has been shown to have the potential to dramatically increase the in-operation amplitudes and stresses of turbine blades.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 2001
- Accession Number
- ADA405654
Entities
People
- Christophe Pierre
- John Judge
- Matthew P. Castanier
- Steven L. Ceccio
Organizations
- University of Michigan