A Model-Less Method for Added Mass Identification

Grzegorz Suwała; Łukasz Jankowski

doi:10.4028/www.scientific.net/SSP.147-149.570

Paper Titles

Methodological Aspects of Evaluating Tribological Properties of Ball Bearings
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Research of Tribological Properties of Mineral Motor Oil with Cholesteryl Stearate Additive
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Selective Transfer Phenomenon in Copper-Steel Tribological Systems
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A Comparative Study of Different Neighborhood Topologies in WTM Kohonen Self-Organizing Maps
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A Model-Less Method for Added Mass Identification
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Analysis of Dynamic Method of Line Scales Detection
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Application of Optical Flow and Methods of Group Lee Representation in Problems of Detecting of Movements and Pattern Detection on the Images
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Data Mining in Analysis of Biomechanical Signals
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Decomposition of Non-Stationary Signals Based on the Cochlea Function Principle
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HomeSolid State PhenomenaSolid State Phenomena Vols. 147-149A Model-Less Method for Added Mass Identification

A Model-Less Method for Added Mass Identification

Abstract:

This paper present and validates experimentally a model-less methodology for off-line identification of modifications of nodal masses. The proposed approach is entirely based on experimentally measured data; hence no numerical modeling and tedious fine-tuning of the model are necessary. The influence of the added mass is modeled using virtual distortion forces and experimentally obtained system transfer matrices. The identification amounts to solving an optimization problem of minimizing the mean square distance between measured and modeled structural responses, the latter is based on previously recorded responses of the unaffected structure.