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A SIMPLIFIED SOLUTION OF MODE SUPERPOSITION METHOD FOR SUBSTRUCTURE DYNAMIC RESPONSE CALCULATION

YE Zuying

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Abstract

Under the conditions that the lowest frequency of the substructural fixed interface boundary is higher than the fundamental frequency of the complete structure, the simplified solution of superelement method of modal synthesis for substructure dynamic characteristics calculation is extended to computaion of the substructure dynamic response, and the fixed interface Ritz Vectors are substituted for the fixed interface modes of substructure. A comparison of the numerical results indicates that the method used in this paper is effective and reasonably accurate.

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What this paper is about

Under the conditions that the lowest frequency of the substructural fixed interface boundary is higher than the fundamental frequency of the complete structure, the simplified solution of superelement method of modal synthesis for substructure dynamic characteristics calculation is extended to computaion of the substructure dynamic response, and the fixed interface Ritz Vectors are substituted for the fixed interface modes of substructure. A comparison of the numerical results indicates that the method used in this paper is effective and reasonably accurate.

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Available abstract

Under the conditions that the lowest frequency of the substructural fixed interface boundary is higher than the fundamental frequency of the complete structure, the simplified solution of superelement method of modal synthesis for substructure dynamic characteristics calculation is extended to computaion of the substructure dynamic response, and the fixed interface Ritz Vectors are substituted for the fixed interface modes of substructure. A comparison of the numerical results indicates that the method used in this paper is effective and reasonably accurate.

Key concepts: Substructure, Mathematics, Interface (matter), Modal, Mode (computer interface), Mathematical analysis, FETI, Modal analysis

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A SIMPLIFIED SOLUTION OF MODE SUPERPOSITION METHOD FOR SUBSTRUCTURE DYNAMIC RESPONSE CALCULATION — Research Paper | ScholarLens