### Abstract

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.

Original language | English |
---|---|

Pages (from-to) | 2703-2709 |

Number of pages | 7 |

Journal | Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C |

Volume | 73 |

Issue number | 10 |

Publication status | Published - 2007 Oct 1 |

### Fingerprint

### Keywords

- Cluster filter
- Filter
- Measurement
- Modal analysis
- Modal filter

### ASJC Scopus subject areas

- Mechanics of Materials
- Mechanical Engineering
- Industrial and Manufacturing Engineering