Testing of a multi-stage low-frequency isolator using Euler spring and self-damped pendulums

Jean-Charles Dumas, Kah Lee, John Winterflood, Li Ju, David Blair, J.S. Jacob, Carlo Bradaschia (Editor)

    Research output: Contribution to journalArticle

    11 Citations (Scopus)

    Abstract

    We present performance measurements of a three-stage low-frequency vibration isolation chain which will form the low-frequency isolation part of an advanced isolator design developed for the Australian International Gravitational Observatory (AIGO). Each stage is a combination of a vertical Euler-spring stage and a self-damped pendulum. Experimental results demonstrate all horizontal normal modes including the fundamental pendulum mode to be strongly damped. Measurements below 10 Hz show vertical and horizontal performance close to theoretical expectations without extraneous normal mode peaks.
    Original languageEnglish
    Pages (from-to)S965-S971
    JournalClassical and Quantum Gravity
    Volume21
    DOIs
    Publication statusPublished - 2004

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