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http://dx.doi.org/10.20910/JASE.2018.12.4.49

Performance Analysis and Test of the Small Piezoelectric-Hydraulic Pump Brake System  

Hwang, Yong-Ha (Department of Aerospace and Mechanical Engineering, Graduate school at KAU)
Hwang, Jai-Hyuk (Department of Aerospace and Mechanical Engineering, Korea Aerospace University)
Nguyen, Anh Phuc (Department of Aerospace and Mechanical Engineering, Graduate school at KAU)
Bae, Jae-Sung (Department of Aerospace and Mechanical Engineering, Korea Aerospace University)
Publication Information
Journal of Aerospace System Engineering / v.12, no.4, 2018 , pp. 49-56 More about this Journal
Abstract
In this paper, the performance analysis and the experiment of the brake system using the small piezoelectric-hydraulic pump were performed. Initially, the 3-D modeling of the brake load components was performed for the construction of the brake system. Subsequently, modeling using the commercial program AMESim was performed. A floating caliper model was used as a load for modeling the brake system. Through the AMESim simulation, load pressure, check valve displacement and flow rate under no load state were calculated, and performance analysis and changes in dynamic characteristics were confirmed by adding brake load. A jig for use in fixing the brake load during performance test was manufactured. The flow rate was assessed under no load condition and load pressure formation experiments were performed and compared with simulation results. Experimental results revealed the maximum load pressure as about 73bar at 130Hz and the maximum flow rate as about 203cc/min at 145Hz, which satisfied the requirement of small- and medium-sized UAV braking system. In addition, simulation results revealed that the load pressure and discharge flow rate were within 6% and 5%, respectively. Apparently, the modeling is expected to be effective for brake performance analysis.
Keywords
Brake System; Floating Type Caliper; Flow Rate; Load Pressure;
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Times Cited By KSCI : 2  (Citation Analysis)
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