| Summary: | 碩士 === 大同工學院 === 機械工程研究所 === 81 === There are many distinct advantages of a hydraulic control
system, such as a higher speed of response with fast motions, a
higher torque stiffness, and a higher output power per unit
weight. The hydraulic control system becomes the most common
form of precise manipulation system. However, some nonlinear
phenomena, such as the relationship between input current and
output flow, the fluid compressibility, and the deadband due to
internal leakage and hysteresis, make the control of hydraulic
system difficult. This paper is divided into two part: Part 1
:The trajectory tracking of electrodraulic servomechanism via a
sliding mode controller. Part 2 :The position control of
electrohydraulic servomechanism via a variable structure
control with a second-order sliding condition.
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