• coasting down signal analysis as a tool for detection of proximity of resonances and a case study

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 491
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     steady state vibration response of a machinery-supporting structure is strongly influenced by resonances closer to its operating speed. the coasting up/down response of the machinery and the corresponding signal may throw light on the proximity of resonances and pre-cautions can be taken to de-tune it away from the operating frequency. the paper presents the theoretical and experimental background of coasting down response characterized by continuous variation of frequencies. a case study is shown for illustration of the phenomenon and how a large vibration problem in a beam supporting the bearing of a turbo-generator is effectively solved using information obtained from the coasting down signals.

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