斜板式油圧ピストンポンプの吐出配管系圧力脈動の動応答解析とポンプ全体系動応答への影響解析

概要

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Hydrostatic transmission technologies applied to a variety of modern power control systems such as in industrial and marine machinery and mobiles should not be aimed at productivity only but increased human and environmental friendliness also. Vibration of hydraulic piston pumps excited by delivery pressure pulsation has raised acute noise problems. For clarification of mechanism of pulsation generation, the delivery flow fluctuation of a pump combined with the dynamic response of a delivery circuit consisting of arbitrary elements including pipes and chokes is analyzed in this work. The motion equations expressing the pump-and fluid-structure systems are formulated. The results of numerical dynamic response analyses performed using the Newmark-β method agree satisfactorily with the experimental results. Moreover, the influence of a filtering circuit on the reduction of the delivery flow fluctuation is clarified. It is confirmed that the circuit markedly reduces the dynamic response of the pump.
一般社団法人日本機械学会の論文
1998-03-25