Mistuned bladed disk forced vibration analysis based on standing wave formulation

Lee, Il; Shin, Su-Jung; Kim, YeongRyun

doi:10.1016/j.ast.2011.12.001

Cited by 8 publications

(4 citation statements)

References 6 publications

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“…Moradi et al 20 analyzed the forced oscillation and stability of the nonlinear behavior of regenerative chatter in turning process. Lee et al 21 investigated mistuned blade forced vibration by use of the standing wave formulation. In order to simplify the rotational models, Grolet et al 22 investigated the free and forced vibration of nonlinear systems with cyclic symmetry.…”

Section: Introductionmentioning

confidence: 99%

Forced Vibration Analysis of Spinning Disks Subjected to Transverse Loads

Norouzi

Younesian

2015

Int. J. Str. Stab. Dyn.

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Forced vibration of a rotating disk subjected to a stationary transverse load is studied in this paper. Time and frequency responses are obtained and e®ects of the rotating speed on the natural frequencies are evaluated. Finite element method (FEM) is employed as the solution technique and natural frequencies are obtained for di®erent speeds. Forced vibration is then considered and disk responses are determined using the Galerkin method. The solution is determined in two di®erent coordinate systems. In the¯rst one, the disk is assumed to be rotating in an inertial coordinate system, while in the second coordinate system, a rotating peripheral force is applied on a stationary disk. The objective here in this paper is to compare the two modeling scenarios and is to¯nd limiting range of the rotational speed for employing the stationary coordinate system.

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Section: Introductionmentioning

confidence: 99%

Forced Vibration Analysis of Spinning Disks Subjected to Transverse Loads

Norouzi

Younesian

2015

Int. J. Str. Stab. Dyn.

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“…Literature [4] calculated the dynamic frequency of a mistuned bladed disk under rated conditions on the basis of the direct method. Lee [5] analyzed the forced vibration characteristics of the mistuned bladed disk using the direct method. Kan [6] investigated the effect of Coriolis force on the forced response of the mistuned bladed disk using the direct method.…”

Section: Introductionmentioning

confidence: 99%

Mobile Interface CMS Method for Vibration Characteristics Prediction of Mistuned Bladed Disk with Different Coupling Degrees

Zhang

Wang

2021

Mathematical Problems in Engineering

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The prediction of vibration characteristics was studied in the mistuned bladed disk by the mobile interface prestressed component mode synthesis (CMS) superelement method. When the strongly, generally, and weakly coupling in the mistuned bladed disk, according to the results of the direct FEM method, the prediction accuracy of this method was verified and compared with the fixed-interface CMS method by using the relative error of dynamic frequency, vibration mode matching function, and dimensionless root mean square error of vibration amplitudes. It is pointed that for mistuned bladed disk in the strong coupling, the prediction accuracy of dynamic frequency and vibration amplitudes are higher by the mobile interface CMS method and the vibration modes are matched with the direct method. In weak coupling, the results of dynamic frequency and vibration modes predicted by the mobile interface CMS method and the fixed-interface CMS method are consistent with the direct method, but the vibration amplitudes’ prediction error of the mobile interface CMS method is lower than that of the fixed-interface CMS method. In general coupling, the mobile interface CMS method has higher dynamic frequency prediction accuracy at low order, and the two methods have comparable dynamic frequency prediction accuracy at high order. The vibration modes predicted by the two methods are matched with the direct FEM method, and the prediction accuracy of vibration amplitude by the mobile interface CMS method is better than that of the fixed-interface CMS method. The results indicate that the mobile interface CMS method could more accurately predict vibration characteristics of the mistuned bladed disk with different coupling degrees and could be an effective measurement for studying the vibration characteristics of the mistuned bladed disk system.

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“…The proposed IMM technique is validated in terms of both modal parameters estimation and forced response calculation [8]. Lee conducted the mistuned bladed disk forced vibration analysis including a vortex lattice prediction given an external aerodynamic force based on a standing wave formulation [9]. Kan described the effect of the coriolis force on forced response magnification of intentionally mistuned bladed disk [10].…”

Section: Introductionmentioning

confidence: 99%

Vibration characteristics analysis of mistuned bladed disk system based on mobile interface prestressed CMS super-element method

Zhang¹,

He²,

Yuan³

et al. 2018

J. vibroeng.

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A new mobile interface prestressed component mode synthesis (CMS) super-element method is proposed with the mobile interface prestressed and free interface super-element approach. Analysis accuracy of this method is verified by the cyclic symmetry analysis method and the direct method. The mistuning parameter of real blades is identified by modal testing and finite element method, and the vibration characteristics of the real mistuned bladed disk system are analyzed based on the mobile interface CMS method. The results showed that the maximum relative error of the dynamic frequency of tuned and mistuned examples are 0.0043 % and 0.1466 %, respectively, which can be to meet the requirement of analytical precision. Compared with the cyclic symmetry analysis method, direct method and fixed interface prestressed CMS super-element method, this method is more suitable for analyzing the vibration characteristics of arbitrary mistuned bladed disk system. Keywords: mistuned bladed disk system, mobile interface prestressed, CMS super-element method, vibration characteristics.[20] Nyssen F., Epureanu B., Golinval J.-C. Experimental modal identification of mistuning in an academic two-stage drum. . Her current research focuses on vibration analysis of mistuned bladed disk system.

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Mistuned bladed disk forced vibration analysis based on standing wave formulation

Cited by 8 publications

References 6 publications

Forced Vibration Analysis of Spinning Disks Subjected to Transverse Loads

Forced Vibration Analysis of Spinning Disks Subjected to Transverse Loads

Mobile Interface CMS Method for Vibration Characteristics Prediction of Mistuned Bladed Disk with Different Coupling Degrees

Vibration characteristics analysis of mistuned bladed disk system based on mobile interface prestressed CMS super-element method

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