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MIL-STD-810G w/Change 1 강우 시험 운용 방법 및 시험 조건 검증
양청광(Cheong-Kwang Yang),최병오(Byung-Oh Choi),백동천(Dong-Cheon Baek),박태국(Tae-Kook Park),송태진(Tae-Jin Song),엄학용(Hak-Yong Eom) 대한기계학회 2016 대한기계학회 춘추학술대회 Vol.2016 No.12
Rainfall environmental test is necessary for military equipment, power equipment, equipment, rainfall. leakage prevention equipment and so on. This test has to comply with the MIL-STD-810G standards. It has recently been amended to MIL-STD-810G w / Change 1 In accordance with the reinforced test conditions, the rainfall environmental test equipment was improved than the previous one. Finally, the equipment was improved and evaluated well through rainfall test.
박태국(Tae-Kook Park),성백주(Baek-Ju Sung),양청광(Cheong-Kwang Yang),박형준(Hyung-Jun Park) 대한기계학회 2014 대한기계학회 춘추학술대회 Vol.2014 No.5
Air conditioning energy consumption in data center accounted for 40% of energy. The local cooling system compared to the conventional cooling method may be 35% energy savings. A deterioration of IT equipment directly connected to the calorific value for effective management of a data center, the lifetime can be extended further than ever. So the use of the local cooling system will be expanded extensively. In this paper, the reliability evaluation of the local cooling system for failure analysis and test methods(total performance test and environmental test, safety test, life test) are presented. And the results of reliability evaluation of are presented.
박태국(Tae-Kook Park),최병오(Byung-Oh Choi),송태진(Tae-Jin Song),장영규(Young-Gyu Chang),양청광(Cheong-Kwang Yang) 대한기계학회 2015 대한기계학회 춘추학술대회 Vol.2015 No.11
Temperature (high, low, cycle, change) and humidity test has been performed in the basic test of environmental testing. And temperature and humidity test is performed in the temperature and humidity environmental chamber. The reliability has recently been important in the industry. Environmental testing is a branch of the reliability test. So temperature and humidity test has been extensively increased in the industry. In this paper, Temperature in the temperature and humidity environmental chamber is measured during temperature test. The uncertainty of the measured temperature is calculated. So the estimation of uncertainty of the measured temperature is described. The expanded uncertainty (ĸ = 2) of the temperature test is 0.32 ℃