Forced response of mistuned bladed disks

Identification and prediction

Chung Chih Lin, Marc Mignolet

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The present investigation focuses on both the estimation of the parameters of a structural model to represent `at best' a set of measurements of the response of a mistuned bladed disk (identification) and the determination of the statistical distribution of the amplitudes of blade vibration given the model parameters (prediction). A mixed least squares-maximum likelihood formulation is presented which is shown to recover well the true model parameters from noisy simulated response data. The prediction aspects of the problem are then investigated by relying on the newly devised combined Closed Form - Perturbation (CFP) approach. The formulation of this technique is extended to the case of both stiffness and damping mistuning and new numerical results are presented that confirm the usefulness of the CFP method in predicting the statistical distribution of the amplitudes of blade response.

Original languageEnglish (US)
Title of host publicationAmerican Society of Mechanical Engineers, Petroleum Division (Publication) PD
EditorsA. Faghri, M.A. Yaghoubi
Place of PublicationNew York, NY, United States
PublisherPubl by ASME
Pages135-142
Number of pages8
Volume64
Edition7
ISBN (Print)0791812804
StatePublished - 1994
EventProceedings of the 2nd Biennial European Joint Conference on Engineering Systems Design and Analysis. Part 1 (of 8) - London, Engl
Duration: Jul 4 1994Jul 7 1994

Other

OtherProceedings of the 2nd Biennial European Joint Conference on Engineering Systems Design and Analysis. Part 1 (of 8)
CityLondon, Engl
Period7/4/947/7/94

Fingerprint

statistical distribution
prediction
perturbation
damping
stiffness
vibration
parameter
method

ASJC Scopus subject areas

  • Geology

Cite this

Lin, C. C., & Mignolet, M. (1994). Forced response of mistuned bladed disks: Identification and prediction. In A. Faghri, & M. A. Yaghoubi (Eds.), American Society of Mechanical Engineers, Petroleum Division (Publication) PD (7 ed., Vol. 64, pp. 135-142). New York, NY, United States: Publ by ASME.

Forced response of mistuned bladed disks : Identification and prediction. / Lin, Chung Chih; Mignolet, Marc.

American Society of Mechanical Engineers, Petroleum Division (Publication) PD. ed. / A. Faghri; M.A. Yaghoubi. Vol. 64 7. ed. New York, NY, United States : Publ by ASME, 1994. p. 135-142.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lin, CC & Mignolet, M 1994, Forced response of mistuned bladed disks: Identification and prediction. in A Faghri & MA Yaghoubi (eds), American Society of Mechanical Engineers, Petroleum Division (Publication) PD. 7 edn, vol. 64, Publ by ASME, New York, NY, United States, pp. 135-142, Proceedings of the 2nd Biennial European Joint Conference on Engineering Systems Design and Analysis. Part 1 (of 8), London, Engl, 7/4/94.
Lin CC, Mignolet M. Forced response of mistuned bladed disks: Identification and prediction. In Faghri A, Yaghoubi MA, editors, American Society of Mechanical Engineers, Petroleum Division (Publication) PD. 7 ed. Vol. 64. New York, NY, United States: Publ by ASME. 1994. p. 135-142
Lin, Chung Chih ; Mignolet, Marc. / Forced response of mistuned bladed disks : Identification and prediction. American Society of Mechanical Engineers, Petroleum Division (Publication) PD. editor / A. Faghri ; M.A. Yaghoubi. Vol. 64 7. ed. New York, NY, United States : Publ by ASME, 1994. pp. 135-142
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