Uncertainty in Cross Orthogonality Checks

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概要

• 論文の詳細を見る

• Finite element structural dynamic models are typically validated using data obtained from a modal testing. Although it is known that test variability may affect the verification, the test variability is typically ignored in the verification process. This paper describes the sensitivities of cross orthogonality check to the test variability. The cross orthogonality check is one of correlation techniques which is gaining acceptance in the structural dynamics community, because of its improved accuracy over the standard modal assurance criterion. Then an uncertainty index of the cross orthogonality check is proposed based on the fact that the sensitivities are much dependent on sensor placement. The results of some artificially generated test cases are presented to demonstrate the applicability of the proposed approach.

• 一般社団法人日本機械学会の論文
• 2003-06-15

著者

• MATSUMURA Yuichi

  Department of Mechanical Systems Engineering, The University of Shiga Prefecture

• Matsumura Yuichi

  Department Of Mechanical Systems Engineering The University Of Shiga Prefecture

関連論文

• Modal Decomposition of Operating Deflection Shapes Based on the General Definition of Projectors
• Adaptive Identification of Operating Deflection Shapes
• Uncertainty in Cross Orthogonality Checks

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