Real-Time Identification of Impact Force on Plates Using Experimental Transfer Matrices
Bibliographic Information
- Other Title
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- 実験的変換行列を用いた平板の実時間衝撃荷重同定
- ジッケンテキ ヘンカン ギョウレツ オ モチイタ ヘイバン ノ ジツ ジカン ショウゲキ カジュウ ドウ テイ
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Abstract
This paper proposes a method for identifying the location and force history of an impact force acting on plate structures. The identification method is an experimental one so it does not require any analytical model of the structure. The impact location is identified using arrival times of the flexural wave to the PZT sensors. In order to determine the arrival times accurately and rapidly, an analog band-pass filter is used to obtain the wave with a specified frequency. Experimental transfer matrices, which relate the impact force and the sensor responses, are used to identify the force history. Here, the transfer matrices are preconstructed from the measured data obtained by impact tests conducted with an impulse hammer. The force history is identified by minimizing the deviation between the measured sensor responses and the responses estimated from the experimental transfer matrices. In order to verify the validity of the proposed method, impact force identification of aluminum plates and CFRP laminated plates are performed experimentally. The results reveal that the location and force history of the impact force can be identified accurately in real time using the proposed method.
Journal
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- JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES
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JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 60 (1), 48-55, 2012
THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES
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Keywords
Details 詳細情報について
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- CRID
- 1390001204469458944
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- NII Article ID
- 10030642003
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- NII Book ID
- AA11307372
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- ISSN
- 24323691
- 13446460
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- NDL BIB ID
- 023457892
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed