Blade Manufacturing Tolerances Definition for a Mistuned Industrial Bladed Disk-Reference-Cited by-同舟云学术

Blade Manufacturing Tolerances Definition for a Mistuned Industrial Bladed Disk

Published:2005-06-24 Issue:3 Volume:127 Page:621-628
ISSN:0742-4795
Container-title:Journal of Engineering for Gas Turbines and Power
language:en
Short-container-title:

Author:

Capiez-Lernout E.¹,Soize C.¹,Lombard J.-P.²,Dupont C.²,Seinturier E.³

Affiliation:

1. Laboratory of Engineering Mechanics, University of Marne La Valle´e, 5, Bd Descartes, 77454 Marne-la-Valle´e Cedex, 02, France

2. Snecma Moteurs, Site de Villaroche, 77550 Moissy Cramayel, France

3. Turbomeca—Snecma Group, Site de Bordes, 64511 Bordes Cedex, France

Abstract

This paper deals with the characterization of the blade manufacturing geometric tolerances in order to get a given level of amplification in the forced response of a mistuned bladed-disk. The theory is based on the use of a nonparametric probabilistic model of blade random uncertainties. The dispersion parameters controlling the nonparametric model are estimated as a function of the geometric tolerances. The industrial application is devoted to the mistuning analysis of a 22 blades wide chord fan stage. Centrifugal stiffening due to rotational effects is also included. The results obtained validate the efficiency and the reliability of the method on three-dimensional bladed disks.

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/127/3/621/5717525/621_1.pdf

Reference25 articles.

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2. Ohayon, R., and Soize, C., 1998, Structural Acoustics and Vibration, Academic Press, San Diego, CA.

3. Whitehead, D. , 1966, “Effects of Mistuning on the Vibration of Turbomachine Blades Induced by Wakes,” J. Mech. Eng. Sci., 8, pp. 15–21.

4. Ewins, D. , 1969, “The Effects of Detuning Upon the Forced Vibrations of Bladed Disks,” J. Sound Vib., 9, pp. 65–69.

5. Dye, R., and Henry, T., 1969, “Vibration Amplitudes of Compressor Blades Resulting From Scatter in Blade Natural Frequencies,” ASME J. Eng. Power, 91, pp. 182–187.

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