Influence of Compressibility of Oil on the Step Response of Hydraulic Servomechanism 2nd Report The Response without Inertia Loading

概要

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Step responses of the hydraulic servomechanism under spring load, viscous load and orifice load are studied considering the influence of the compressibility of oil. Some basic characteristics of the system are analized and an exact numerical analysis is performed with various combinations of system parameters. The influence of the compressibility of oil on the output displacement under these loads is comparatively small. The calculated results reveal that the output displacement obtained under the assumption of incompressibility of oil gives fair approximation in most cases. The influence of the compressibility of oil on pressure variation in cylinder chamber, which is small under the spring load, becomes large under the viscous and the orifice load. The system is generally stable under these loadings.
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