보조 동력 장치 성능시험기 개발 및 측정 시스템 분석

Abstract

Purpose: In this study, an automatic performance tester (APT) was developed for an auxiliary power unit (APU) applied to self-propelled artillery, and the precision and stability of the APT were evaluated using measurement system analysis (MSA). Methods: The APT was developed as a package system comprising indicators, control devices, and a remote-control panel. Gage R&R analysis was conducted on the measurements of the rated voltage, output current, engine revolutions, and recovery time. In addition, to calibrate the APT, the data from the APT were compared with those from general-purpose measurement devices. Results: The percentage R&R values of the rated voltage, engine speed, and recovery time were less than 10 (i.e., acceptable) and that of the output current was 14.34 (i.e., conditionally acceptable). The differences in the measured values between the APT and general-purpose measurement devices were within 10% of the tolerance, so the APT calibration was considered to be acceptable. Conclusion: The results of this study are expected to provide some preliminary data for the development of APT measurement standards for self-propelled artillery APUs with defensequality standards.