A novel scheme for the discrete prediction of high-frequency vibration response: Discrete singular convolution-mode superposition approach

Seçgin A., Sarıgül A. S.

JOURNAL OF SOUND AND VIBRATION, cilt.320, ss.1004-1022, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 320
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.jsv.2008.08.031
  • Dergi Adı: JOURNAL OF SOUND AND VIBRATION
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED)
  • Sayfa Sayıları: ss.1004-1022
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

This study introduces a novel scheme for the discrete high-frequency forced vibration analysis based on discrete singular convolution (DSC) and mode superposition (MS) approaches. The accuracy of the DSC-MS is validated for thin beams and plates by comparing with available analytical solutions. The performance of the DSC-MS is evaluated by predicting spatial distribution and discrete frequency spectra of the vibration response of thin plates with two different boundary conditions. The frequency spectra of the time-harmonic excitation forces are in the form of ideal and band-limited white noise so that the natural modes in the frequency band are provoked. The solution exposes high-frequency response behaviour definitely. Therefore, it is hoped with this paper to contribute the studies on the treatment of uncertainties in the high-frequency design applications. (c) 2008 Elsevier Ltd. All rights reserved.