Modal decomposition and modal cluster decomposition on two-dimensional frequency domain (real-time filtering of each modal cluster)

Yuichi Matsumura, Naoki Hosoya

研究成果: Article査読

抄録

This paper examines a method for the design of a real-time filter for extrcating a desired modal cluster, which is decomposed on a two-dimensional frequency domain. At first, the realization method of modal cluster decomposition was revisited. Then, in order to extract the desired modal cluster on real-time, we derived a design method of a time domain filter based on a theory for two-dimensional FIR filter. This filter computes the simple summation of current signals for a spatial direction, and hence there is no time delay to extract the signal of a desired modal cluster. As a numerical example, it was shown that the real-time filtering of the desired modal cluster can be successfully realized with low computational cost and without time delay.

本文言語English
ページ(範囲)2703-2709
ページ数7
ジャーナルNihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
73
10
DOI
出版ステータスPublished - 2007 10月
外部発表はい

ASJC Scopus subject areas

  • 材料力学
  • 機械工学
  • 産業および生産工学

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