Affiliation:
1. Department of Mechanical Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213
Abstract
This paper is the first in a two-part study of identifying mistuning in bladed disks. It develops 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 presented: 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.
Reference10 articles.
1. Srinivasan, A. V.
, 1997, “Flutter and Resonant Vibration Characteristics of Engine Blades,” ASME J. Eng. Gas Turbines Power, 119, pp. 742–775.
2. Castanier, M. P., Ottarsson, G., and Pierre, C., 1997, “A Reduced Order Modeling Technique for Mistuned Bladed Disks,” ASME J. Vibr. Acoust., 119, pp. 439–447.
3. Yang, M.-T., and Griffin, J. H., 2001, “A Reduced Order Model of Mistuning Using a Subset of Nominal Modes,” ASME J. Eng. Gas Turbines Power, 123, pp. 893–900.
4. Petrov, E., Sanliturk, K., Ewins, D., and Elliott, R., 2000, “Quantitative Prediction of the Effects of Mistuning Arrangement on Resonant Response of a Practical Turbine Bladed Disk,” 5th National Turbine Engine High Cycle Fatigue Conference, Chandler, AZ.
5. Feiner, D. M., and Griffin, J. H., 2002, “A Fundamental Model of Mistuning for a Single Family of Modes,” ASME J. Turbomach., 124, 597–604.
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