遠心圧縮機による配管内圧力脈動に関する研究 : 第1報,評価モデルと共振時の脈動特性に関する検討(機械力学,計測,自動制御)

概要

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Pressure pulsations in piping systems excited by a centrifugal compressor or fan at blade passing frequency were investigated by experiment and numerical simulation. A one-dimensional pressure excitation source model for a compressor was proposed based on the equation of motion, to establish the practical evaluation method for pressure pulsations in piping systems. As a result of experiment, the maximum pressure amplitude in a piping system increased as the location of a compressor was close to the node of the pressure distribution of the resonant mode. This relation between the maximum pressure amplitude in piping systems and the location of an excitation source under resonant conditions can be evaluated by introducing the equivalent resistance of a compressor and that of piping systems. The role of the system resistance to the response of pressure pulsations was discussed in detail.
社団法人日本機械学会の論文
2007-08-25