油圧管路の動特性実験による高周波用瞬時流量測定法の検討

概要

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Concerning the dynamic characteristics of oil hydraulic pipe lines, experimental research from the view point of focusing on the unsteady flow rate through a pipe is insufficient because of the lack of adequate flowmeters. The authors develop a new system to measure the unsteady flow rate of oil through a circular pipe. The sampling frequency of the measurement is 1.28 kHz. The frequency responses and the transient responses of the oil hydraulic pipe lines are obtained by measuring the flow rate through a certain cross-section of the pipe and the pressure at the section simultaneously. The experimental results are compared with the theoretical results, which are calculated by making use of the so-called frequency dependent friction model. As a result, it is verified for the first time that the theory predicts the rate of the instantaneous flow rate measuring system is sufficient for the general dynamic test of oil hydraulic circuits and equipment.
社団法人日本機械学会の論文
1986-01-25