Pressure pulsations in a drum excited by a centrifugal compressor connected to a piping system

Itsuro Hayashi*, Shigehiko Kaneko

*この研究の対応する著者

研究成果

抄録

The characteristics of the pressure pulsations in a drum connected to a piping system excited by a centrifugal compressor or a blower operated at blade-passing frequencies were investigated. In this study, the equivalent resistance of a compressor and that of a piping system were introduced and linked to the three dimensional calculation model, so that the non-linear damping proportional to velocity squared in the system is properly incorporated. The experiment was performed in order to validate the proposed simulation model. As a result, the three dimensional pressure response in the drum as well as the pipe can be well evaluated by this model. Furthermore, the effect of the acoustic dynamic absorber on the pressure pulsations in the pipe and drum is evaluated. When the resonant frequency of the pipe coincides with that of the drum, two peaks appear in the frequency response curve around the resonant frequency of the pipe, because the drum acts as an acoustic dynamic absorber. It is shown that the maximum pressure amplitude in the drum is obtained when the resonant frequency of the pipe is slightly shifted from the resonant frequency of the drum under the small damping conditions. The effect of the damping in the drum and the mode shape of the drum on the maximum pressure amplitude in the drum is discussed in detail.

本文言語English
ホスト出版物のタイトルASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels, FEDSM2010
ページ757-766
ページ数10
PARTS A AND B
DOI
出版ステータスPublished - 2010 12 1
外部発表はい
イベントASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, FEDSM 2010 - ASME 2010 7th International Symposium on Fluid-Structure Interactions, Flow-Sound Interactions, and Flow-Induced Vibration and Noise, FSI2 and FIV+N - Montreal, QC, Canada
継続期間: 2010 8 12010 8 5

出版物シリーズ

名前American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM
番号PARTS A AND B
3
ISSN(印刷版)0888-8116

Conference

ConferenceASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, FEDSM 2010 - ASME 2010 7th International Symposium on Fluid-Structure Interactions, Flow-Sound Interactions, and Flow-Induced Vibration and Noise, FSI2 and FIV+N
国/地域Canada
CityMontreal, QC
Period10/8/110/8/5

ASJC Scopus subject areas

  • 機械工学

フィンガープリント

「Pressure pulsations in a drum excited by a centrifugal compressor connected to a piping system」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル