한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)
- 한국소음진동공학회 2005년도 추계학술대회논문집
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- Pages.844-848
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- 2005
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- 1598-2548(pISSN)
변위응답의 측정으로부터 변형률응답을 예측하는 방법의 특성
Characteristics of the Method to Predict Strain Responses from the Measurements of Displacement Responses
- 발행 : 2005.11.01
초록
A method to predict the strain responses from the measurements of displacement responses is considered. The method uses a transformation matrix which is composed of a displacement modal matrix and a strain modal matrix. The method can predict strains at points where displacements are not measured as well as at displacement measuring points. One of the drawbacks of the strain prediction method is that the displacement responses must be measured at many points on a structure simultaneously. This difficulty can be overcome by measuring the FRFs between displacements at a reference point and other point in sequence with a two channel measuring equipment This procedure is based on the assumption that the characteristics of excitation applied to the structure do not vary with time.