Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
권호 표지

Dynamic Response Localization of Simple Periodic Structures Undertaking External Harmonic Forces

조화 외력을 받는 간단한 주기적 구조물의 동적 응답 국부화

  • Published : 2001.09.01
Download PDF
⟨ Previous Next ⟩

Abstract

Dynamic response localization of simple mistuned periodic structures is presented in this paper Mistuning in periodic structures can cause forced responses that are much larger than those of perfectly tuned structures. So mistuning results in the critical impact on high cycle fatigue of structures. Thus, it is of great importance to predict the mistuned forced response in an efficient way. In this paper, forced responses of coupled pendulum systems are investigated to identify the localization effect of periodic structures. The effects of mistuning and damping on the maximum forced response are examined. It is found that certain conditions of mistuning and coupling can cause strong localization and the localization becomes significant under weak damping. It is also found that the maximum forced response increases as the number of Periodic structures increases.

Keywords

References

  1. Journal of Mechanical Engineering Science v.12 A Study of Resonance Coincidence in Bladed Disks Ewins, D.J.
  2. Journal of Mechanical Engineering Science v.15 Vibration Characteristics of Bladed Disk Assemblies Ewins, D.J.
  3. Journal of Sound and Vibration v.9 The Effect of Detuning upon the Forced Vibrations of Bladed Disks Ewins, D.J.
  4. Journal of Sound and Vibration v.114 Localization of Vibrations by Structural Irregularity Pierre, C.;Dowell, E.H.
  5. Vibration of Blades and Bladed Disk Assemblies, Proceedings of Tenth Biennial Conference on Mechanical Vibration and Noise The Frequency Response of Mistuned Bladed Disk Assemblies Afolabi, D.
  6. Trans. of ASME. Journal of Vibration. Acoustics. Stress, and Reliability in Design v.106 Model Development and Statistical Investigation of Turbine Blade Mistuning Griffin, J.H.;Hoosac. T.M.
  7. Trans. of ASME. Journal of Vibration, Acoustics, Stress, and Reliability in Design v.110 Localization Phenomena in Mistuned Assemblies with Cyclic Symmetry Part I: Free Vibrations, Part II : Forced Vibrations Wei, S.T.;Pierre, C.
  8. Analysis and Design Issues for Modern Aerospace Vehicles v.55 Consideration on the Benefits of Intentional Blade Mistuning for the Forced Response of Trubo machinery Rotors Castanier, P.;Pierre, C.
  9. Journal of Sound and Vibration v.211 Free and Forced Response of Mistuned Linear Cyclic Systems: A Singular Perturbation Approach Happawana, G.S.;Nwokah, O.D.I.;Bajaj, A.K.;Azene, M.
  10. Trans. of ASME. Journal of Vibration and Acoustics v.119 A Reduced Order Modeling Technique for Mistuned Bladed Disks Castanier, P.;Pierre, C.