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http://dx.doi.org/10.5139/JKSAS.2015.43.9.822

On the Performance Test of the Piezoelectric-Hydraulic Pump  

Joo, Yong-Hwi (Department of Aerospace and Mechanical Engineering, Graduate School at KAU)
Hwang, Jai-Hyuk (Department of Aerospace and Mechanical Engineering, Korea Aerospace University)
Yang, Ji-Youn (Department of Aerospace and Mechanical Engineering, Graduate School at KAU)
Bae, Jae-Sung (Department of Aerospace and Mechanical Engineering, Korea Aerospace University)
Lee, Jong-Hoon (The 7th Research and Development Institute, Agency for Defense Development)
Kwon, Jun-Yong (The 7th Research and Development Institute, Agency for Defense Development)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.43, no.9, 2015 , pp. 822-829 More about this Journal
Abstract
In this paper, the piezoelectric-hydraulic pump with a piezostack actuator as a driving source has been designed, fabricated, and evaluated for its application to UAV's brake system. The performance requirements of the piezoelectric-hydraulic pump were decided based on the requirements analysis of the target aircraft brake system. The geometric design of the piezoelectric-hydraulic pump to meet the performance requirements of the pump was conducted, and all components of the pump including the spring sheet type check valves were machined with close tolerance. By constructing a test apparatus for the performance check of the piezoelectric-hydraulic pump, the performance characteristics of the pump, such as the outlet flow rate for load-free condition and the outlet oil pressure for closed loop condition, have been evaluated. It has been found by the performance test result that the developed piezoelectric-hydraulic pump satisfies the design requirements effectively.
Keywords
Piezoelectric-Hydraulic Pump; Piezoelectric Actuator; Check Valve; UAV Brake System;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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