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http://dx.doi.org/10.3795/KSME-A.2014.38.5.475

Inducement of Design Parameters for Reliability Improvement of Servo Actuator for Hydraulic Valve Operation  

Sung, Baek Ju (Korea Institute of Machinery & Materials)
Kim, Do Sik (Korea Institute of Machinery & Materials)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.38, no.5, 2014 , pp. 475-482 More about this Journal
Abstract
The precision hydraulic valve is widely used in various industrial field like aircraft, automobile, and general machinery. Servo actuator is the most important device for driving the precise hydraulic valve. The reliable operation of servo actuator effects on the overall hydraulic system. The performance of servo actuator relies on frequency response and step response according to arbitrary input signal. In this paper, we performed the analysis for the components of servo actuator to satisfy the reliable operation and response characteristics through the reliability analysis, and also induced the design parameters to realize the reliable operation and fast response characteristics of servo actuator for hydraulic valve operation through the empirical knowledge of experts and electromagnetic theories. We suggested the design equations to determine the values of design parameters of servo actuator as like bobbin size, length of yoke and plunger and turn number of coil, and verified the achieved design values through FEM analysis and performance tests using some prototypes of servo actuators adapted in hydraulic valve.
Keywords
Servo Actuator; Response Characteristic; Design Parameter; FEM Analysis; Performance Test;
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