Robust Strategies for Forced Response Reduction of Bladed Disks Based on Large Mistuning Concept-Reference-Cited by-同舟云学术

Robust Strategies for Forced Response Reduction of Bladed Disks Based on Large Mistuning Concept

Published:2008-01-22 Issue:2 Volume:130 Page:
ISSN:0742-4795
Container-title:Journal of Engineering for Gas Turbines and Power
language:en
Short-container-title:

Author:

Nikolic M.¹,Petrov E. P.¹,Ewins D. J.¹

Affiliation:

1. Mechanical Engineering Department, Centre of Vibration Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK

Abstract

In this paper, robust maximum forced response reduction strategies based on a “large mistuning” concept are introduced, including both (i) random and (ii) deterministic approaches. An industrial bladed fan disk serves as an application example for a reliability assessment of the aforementioned strategies using two well-established tools for uncertainty analysis: (i) statistics and (ii) sensitivity and robustness. The feasibility and other practical aspects of implementing large mistuning as a means of preventing excessive forced response levels caused by random mistuning and ensuring the predictability of the response are discussed.

Publisher

ASME International

Subject

Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering

Link

http://asmedigitalcollection.asme.org/gasturbinespower/article-pdf/doi/10.1115/1.2799524/5572816/022501_1.pdf

Reference14 articles.

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2. Aeroelastic Vibration Analysis of Tuned and Mistuned Bladed Systems;Imregun

3. The General Model of Free Vibrations of Mistuned Bladed Discs, Part I: Theory, Part II: Numerical Results;Rzadkowski;J. Sound Vib.

4. Consideration on the Benefits of Intentional Blade Mistuning for the Forced Response of Turbomachinery Rotors;Castanier

5. Intentional Harmonic Mistuning for Robust Forced Response of Bladed Disks;Kenyon

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