可変構造パラメータを有する適応構造システムにおける自己同定可能性指標(機械力学,計測,自動制御)

概要

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The purpose of this study is to propose a criterion for evaluating a capability of variable structural parameters in adaptive structure systems to implement the self-identification with the variable matrices method. The criterion is derived by analyzing a set of the Modal Assurance Criterion corresponding to two independent mode shapes, which are changed by the variable structural parameters. To demonstrate the use of the criterion, we conduct parameter identification experiments with a cantilevered beam structure with a variable stiffness system. In the experiments, an extended form of the variable matrices method is used to identify unknown bending stiffness and mass per unit length of the beam. The results show clear relation between the identification accuracy and the proposed criterion, and therefore the criterion is useful for evaluating the capability of the variable parameters to change the modal properties effectively.
一般社団法人日本機械学会の論文
2007-11-25