Towards a comprehensive direct prediction strategy of the effects of mistuning on the forced response of turbomachinery blades

The objective of the present article is to provide a progress report on, and highlight, some ongoing efforts regarding the available techniques for the direct (i.e. not based on Monte Carlo simulations) prediction of the distribution of the forced response of turbomachinery bladed disks that exhibit...

Full description

Saved in:
Bibliographic Details
Published in:AIRCR ENG AEROSP TECHNOL 1999-01, Vol.71 (5), p.462-469
Main Authors: Mignolet, Marc P., Rivas-Guerra, Alejandro, LaBorde, Brandon
Format: Article
Language:English
Subjects:
Aerodynamics
Blades
Design engineering
Disks (machine components)
Dynamic response
Fatigue of materials
Frequencies
Localization
Parameter estimation
Prediction
Probability distributions
Random variables
Simulation
Standard deviation
Statistical methods
Turbines
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The objective of the present article is to provide a progress report on, and highlight, some ongoing efforts regarding the available techniques for the direct (i.e. not based on Monte Carlo simulations) prediction of the distribution of the forced response of turbomachinery bladed disks that exhibit small blade-to-blade variations in their structural properties (random mistuning). The focus of this effort is on the statistical distributions of the amplitudes of response of a typical blade at a given frequency (level 1), of the maximum responding blade on the disk at a given frequency (level 2), and finally of the maximum responding blade on the disk over a frequency sweep (level 3). When appropriate, emphasis will be placed on the reliability of these techniques as a function of the blade-to-blade coupling strength.
ISSN:1748-8842
0002-2667
1758-4213
DOI:10.1108/00022669910296909