An inverse method for the assignment of vibration nodes

JE Mottershead, C Mares, MI Friswell

Research output: Contribution to journalArticle (Academic Journal)peer-review

46 Citations (Scopus)

Abstract

An inverse method for the assignment of natural frequencies and nodes of normal modes of vibration by the addition of grounded springs and conentrated masses is presented. The method relies entirely on measured receptances at the coordinates of the nodes and the modifications. Measurements at other locations are not needed, neither is there any need for an analytical model. The stiffness and mass parameters are determined by an analysis of the null space of a matrix containing the measured receptances. Example problems are used to illustrate the application of the technique.
Translated title of the contributionAn inverse method for the assignment of vibration nodes
Original languageEnglish
Pages (from-to)87 - 100
Number of pages14
JournalMechanical Systems and Signal Processing
Volume15(1)
DOIs
Publication statusPublished - Jan 2001

Bibliographical note

Publisher: Academic Press

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