The Effect of Flow Force on Frequency Characteristics of Hydraulic Motor Driven by Spool Valve

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概要

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• Effect of flow force in a spool valve on frequency characteristics of a hydraulic system was investigated, both theoretically and experimentally, in a fundamental hydraulic circuit composed of a spool valve and hydraulic motor, which are affected by the hydraulic loss at a cylindrical damping choke in a pilot line. The result indicated that with an increasing g' (=flow force/spring force of the spool valve) the damping coefficient decreased and the resonance frequency of the spool valve became different from that of the motor, but at g' smaller than a certain value the amplitude of angular velocity of the hydraulic motor decreased even if the spool valve was resonating.

• 一般社団法人日本機械学会の論文

著者

• Miyakawa Shimpei

  Researcher Ebara Corporation Central Research Institute

関連論文

• The Effect of Flow Force on Frequency Characteristics of Hydraulic Motor Driven by Spool Valve
• Stability of a Hydraulic Circuit with a Counter-balance Valve

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