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http://dx.doi.org/10.5139/JKSAS.2018.46.2.167

Investigation of Structural Reliability on Solder Joint According to Heater Set-point of the Lunar Lander  

Jeon, Young-Hyeon (Department of Aerospace Engineering, Chosun University)
Park, Tae-Yong (Department of Aerospace Engineering, Chosun University)
Lee, Jang-Joon (Korea Aerospace Research Institute (KARI))
Kim, Jung-Hoon (Korea Aerospace Research Institute (KARI))
Oh, Hyun-Ung (Department of Aerospace Engineering, Chosun University)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.46, no.2, 2018 , pp. 167-174 More about this Journal
Abstract
The heater is applied to the lunar lander for securing its survivability under severe lunar thermal environment during 14 days of night time. For this, the heater on/off set-points shall be determined to minimize the power consumption due to the limited power generation of lunar lander during night time. In addition, the temperature changes of the lander according to the heater set-point is also an important factor because it is related to thermo-mechanical reliability on solder joint of on-board electronics. In this study, we investigated thermo-mechanical reliability on solder joint according to the heater set-point by using commercial reliability and a life prediction tool of Sherlock based on the thermal analysis results of lunar lander that is a year of the mission lifetime.
Keywords
Lunar Lander; Heater Set-point; Solder Joint; Heater Power; Reliability;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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