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Erschienen in:
Optimal Inequalities to Bound a Performance Probability Kapitel lesen Erstes Kapitel lesen

2013 | OriginalPaper | Buchkapitel

13. Orthogonality for Modal Vector Correlation: The Effects of Removing Degrees-of-Freedom

verfasst von : Michael L. Mains

Erschienen in: Topics in Model Validation and Uncertainty Quantification, Volume 5

Verlag: Springer New York

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Abstract

This paper reviews the weighted orthogonality property of modal vectors, the many Test-Analysis Model (TAM) transforms that have been developed to reduce Finite Element Model (FEM) based mass matrices and the Modal Assurance Criterion (MAC). These associated technologies have all been developed to try and correlate the FEM and experimentally obtained mode shapes. A case study is presented where the Effective Independence method for Degree-of-Freedom (DOF) selection was used to systematically reduce the DOF’s of the FEM and understand the effects of DOF reduction on MAC, the Guyan TAM and the System Equivalent Reduction/Expansion Process (SEREP) TAM.

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Vorheriges Kapitel Defining Coverage of a Domain Using a Modified Nearest-Neighbor Metric
Nächstes Kapitel CAE Model Correlation Metrics for Automotive Noise and Vibration Analysis
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Metadaten
Titel
Orthogonality for Modal Vector Correlation: The Effects of Removing Degrees-of-Freedom
verfasst von
Michael L. Mains
Copyright-Jahr
2013
Verlag
Springer New York
Buch
Topics in Model Validation and Uncertainty Quantification, Volume 5

Print ISBN: 978-1-4614-6563-8

Electronic ISBN: 978-1-4614-6564-5

Copyright-Jahr: 2013

DOI
https://doi.org/10.1007/978-1-4614-6564-5_13

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