MEASUREMENT OF THE MODAL SHAPES OF INHOMOGENEOUS CANTILEVERS USING OPTICAL BEAM DEFLECTION

DFL JENKINS, MJ CUNNINGHAM, WW CLEGG, MM BAKUSH

Research output: Contribution to journalArticlepeer-review

Abstract


The study of free vibrations of systems such as simple cantilevers has been mainly concerned with the determination of the eigenvalues (frequencies) and eigenfunctions (modal shapes). A technique has been developed, using optical beam deflection, to measure the modal shape of a cantilever non-invasively at each modal frequency. A knowledge of the modal shapes of very small cantilevers incorporating suitable actuators is important in the application of active vibration control to micromechanical structures.
Original languageEnglish
Pages (from-to)160-166
JournalMeasurement Science and Technology
Volume6
Issue number2
DOIs
Publication statusPublished - 1995

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