• Title/Summary/Keyword: system test

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Structural Vibration Analysis of Smart UAV 4-Degree of Freedom Ground Test System (스마트 무인기 4자유도 지상시험치구 구조진동해석)

  • Park, Kang-Kyun;Choi, Hyun-Chul;Kim, Dong-Man;Kim, Dong-Hyun;Ahn, Oh-Sung
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2009.04a
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    • pp.593-598
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    • 2009
  • In this study we present results for the design of ground test system for 4 degree of freedom(DOF) control test is one of the smart UAV ground test. This system is equipped with real smart UAV and Z direction DOF and 3 direction rotation DOF, Ensuring safe operation of the Smart UAV is a top priority. To this end, it is required to do structure analysis and test verification to confirm the design margin and safety. Based on the analysis, the ground test system has been redesigned to meet the structural conditions.

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The Cold Function Test of a Main Cooling Water System for a Nuclear Fuel Test Loop Installed in HANARO (하나로 핵연료 시험장치의 주냉각수 계통 상온기능시험)

  • Park, Young-Chul;Lee, Young-Sub;Chi, Dai-Yong
    • Proceedings of the KSME Conference
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    • 2008.11b
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    • pp.2505-2510
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    • 2008
  • A nuclear fuel test loop (after below, FTL) is installed in IR1 of an irradiation hole in HANARO for testing neutron irradiation characteristics and thermo hydraulic characteristics of a fuel loaded in a light water power reactor or a heavy water power reactor. When HANARO is normally operated, the fuel loaded in the irradiation hole has a nuclear reaction heat generated by a neutron irradiation. To remove the generated heat and to maintain an operation condition of the test fuel, a main cooling water system (MCWS) is installed in the OPS of the FTL. This paper describes the cold function test results of the MCWS. It was confirmed through the test results that the system met the design requirements under a cold operation condition.

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Design and Flight Test of Path Following System for an Unmanned Airship (무인 비행선의 자동 경로 추종 시스템 개발 및 비행시험)

  • Jung, Kyun-Myung;Sung, Jae-Min;Kim, Byoung-Soo;Je, Jeong-Hyeong;Lee, Sung-Gun
    • Journal of Institute of Control, Robotics and Systems
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    • v.16 no.5
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    • pp.498-509
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    • 2010
  • In this paper, a waypoint guidance law Line Tracking algorithm is designed for testing an Unmanned Airship. In order to verify, we develop an autonomous flight control and test system of unmanned airship. The flight test system is composed FCC (Flight Control Computer), GCS (Ground Control System), Autopilot & Guidance program, GUI (Graphic User Interface) based analysis program, and Test Log Sheet for the management of flight test data. It contains flight test results of single-path & multi-path following, one point continuation turn, LOS guidance, and safe mode for emergency.

Imprementation of Real Time HILS System for Ground Test of Underwater Vehicle (수중 운동체의 육상 모의시험을 위한 실시간 HILS 시스템 구현)

  • Park, Yeong-Il;Choi, Young-Chul;Cho, Kyu-Kab;Lee, Man-Hyung
    • Journal of Korean Institute of Industrial Engineers
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    • v.25 no.2
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    • pp.282-289
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    • 1999
  • To minimize a real world test of underwater guided vehicle, it is necessary to perform a test on ground by using closed loop test techniques. This paper describes implementation of HILS(Hardware In the Loop Simulation) system for ground test and test methodologies for performance evaluation of a guided weapon. HILS system uses a real time distributed computer and a real time processing technique. Ground test results of underwater vehicle are presented for moving and stationary targets by using HILS system.

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Radar system performance test and Ana lysisusing the Radar Simulative Test & Evaluation Laboratory (레이다 원전계/모의성능 실험실을 이용한 레이다 체계성능 시험 및 분석)

  • Kim, Woo-Sung
    • Journal of the Korea Institute of Military Science and Technology
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    • v.14 no.6
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    • pp.1138-1143
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    • 2011
  • One of the critical items in radar testing is the ability to evaluate the performance of radar systems under real operational environments. But it takes lots of time and cost to operate real targets and analyze the test results due to a large amount of data based on these complicated environments. In this paper, the Radar Simulative T&E Lab. is introduced, and the test and analysis results of the developing radar for predicting the radar system performance are described in the Radar Simulative T&E Lab. This laboratory could be used to test the far-field characteristics of antenna radiation pattern and to perform an effective radar system test and evaluation using a simulative target generator under a low cost repeating test situation.

Design of an Automatic Test System for Electronic Equipments in Vehicles (승용차용 전장시험 자동화 시스템 설계)

  • 이창훈;김유남
    • Transactions of the Korean Society of Automotive Engineers
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    • v.9 no.1
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    • pp.131-138
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    • 2001
  • The performance analysis of an electronic equipment test is very complicate due to the variety o vehicles. In this study, automatic design system for the electronic equipment test has been carried out using the standard load patterns. For the test, standard signal patterns for each item are modeled. The test items can be decided by the user by means of these patterns. Also, engineering software modules are developed and proved to be very efficient for analyzing the test results statistically. Experiments are performed for the test system in the vehicle assembly line. By analyzing the test results, it is found that bad samples can be detected without failure. Also, the engineering software modules provide an analytical tool for the automation of the test process.

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Reliability Assessment Criteria of Air Quality System (자동차용 유해가스 검출기의 신뢰성 평가기준)

  • Choi, Man-Yeop;Park, Dong-Kyu;Oh, Geun-Tae;Jeong, Hai-Sung
    • Journal of Applied Reliability
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    • v.10 no.4
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    • pp.279-297
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    • 2010
  • AQS(Air Quality Control System) is the important part of a car air conditioning system. This device intercepts automatically the influx of harmful waste gas. In this paper reliability assessment criteria for AQS are established in terms of quality certification test and lifetime test. The former quality certification test comprises general performance test and environmental test. Items which pass the test undergo lifetime test which guarantees the extent of mean lifetime with certain confidence.

Development of Proving Ground Test Mode for Durability Test of Active Suspension System (사용자 주행 환경을 고려한 능동 현가 시스템의 PG 내구 시험 모드 개발)

  • Woo, Jongwoon;Lee, Seonbong
    • Transactions of the Korean Society of Automotive Engineers
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    • v.21 no.6
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    • pp.16-23
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    • 2013
  • It is important that proving ground damage is correlated with target customer usage. This paper describes the test mode for durability test of active suspension control system for proving ground correlation and optimization. Acceleration, strain, wheel force and other types of data are collected on a vehicle as it traverses different proving ground surfaces. The primary objective of the analysis is to determine which mixture of proving ground surfaces offers the best representation of customer usage while minimizing the total test time. And durability testing offers the best way to assess the capability of a product to reach its reliability target. The test should be representative of the real environmental load and replicate the same customer usage.

Integral effect tests for intermediate and small break loss-of-coolant accidents with passive emergency core cooling system

  • Byoung-Uhn Bae;Seok Cho;Jae Bong Lee;Yu-Sun Park;Jongrok Kim;Kyoung-Ho Kang
    • Nuclear Engineering and Technology
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    • v.55 no.7
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    • pp.2438-2446
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    • 2023
  • To cool down a nuclear reactor core and prevent the fuel damage without a pump-driven active component during any anticipated accident, the passive emergency core cooling system (PECCS) was designed and adopted in an advanced light water reactor, i-POWER. In this study, for a validation of the cooling capability of PECCS, thermal-hydraulic integral effect tests were performed with the ATLAS facility by simulating intermediate and small break loss-of-coolant accidents (IBLOCA and SBLOCA). The test result showed that PECCS could effectively depressurize the reactor coolant system by supplying the safety injection water from the safety injection tanks (SITs). The result pointed out that the safety injection from IRWST should have been activated earlier to inhibit the excessive core heat-up. The sequence of the PECCS injection and the major thermal hydraulic transient during the SBLOCA transient was similar to the result of the IBLOCA test with the equivalent PECCS condition. The test data can be used to evaluate the capability of thermal hydraulic safety analysis codes in predicting IBLOCA and SBLOCA transients under an operation of passive safety system.

Development of Measurement System for the Underwater Explosion Shock Test of Naval Ships (함정의 수중폭발 충격시험을 위한 계측장비 시스템 개발)

  • 박일권;조대승;김종철
    • Journal of the Society of Naval Architects of Korea
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    • v.40 no.4
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    • pp.66-74
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    • 2003
  • In non-contact underwater explosion shock test of a real naval ship, measurement of shock loadings and responses should require onboard system to be able to safely trigger an explosive and to simultaneously and successfully measure scores of shock signals in the deteriorated environment. For this purpose, we have developed a shock-hardened measurement system resistible to 170g peak acceleration having 4 msec duration by resiliently mounting general purpose measurement instruments in racks. The system can simultaneously measure and record 200 signals to evaluate shock leadings and responses of the test ship by triggering an explosive and measurement instruments at the same time. We prove the performance of the developed system by introducing the signal acquisition results from of a real ship underwater shock test, firstly performed in Korea.