油圧用ポペット弁の横振動に関する研究〔流体工学, 流体機械〕

概要

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In the present study, the lateral position of a poppet in a valve for oil hydraulics is expected by measuring the clearances between the poppet and the valve body from two directions perpendicular to the poppet axis under oscillation. The clearances can be measured by measuring quantity of light of the lazer beams, which go through the clearances. Flow near the orifice of the valve is visualized using industrial fiberscopes to observe cavitation. On the other hand, the velocity distributions in the valve, the pressure distributions on the poppet, and the axial and lateral fluctuations of the positions of the poppet are obtained by solving the flow in the valve numerically using two dimensional vortex method. The calculated results are compared with the experimental ones in order to expect the positions of the poppet in both lateral and axial directions and explain the experimental results of the lateral oscillation.
一般社団法人日本機械学会の論文
1998-04-25