TY - JOUR
T1 - Study on unlocking process and estimate model for joining and separating device using magnesium alloy band
AU - Fu, De Bin
AU - Yu, Yong
AU - Yu, Dian Jun
AU - Zhang, Zhi Yong
PY - 2012/10
Y1 - 2012/10
N2 - The joining and separating device using magnesium alloy band has simple structure and unlocks reliably, and is widely used in the space launching fields. To study the unlocking process of this device affected by the flow of rocket exhaust, the exhausted flow and heat transfer are simulated by using the numerical method firstly. Secondly, considering the material attributes, the load force and temperature, the factors influencing magnesium alloy band breaking are analyzed. It is shown that the load fore and temperature are the main factors of magnesium alloy band breaking and the device unlocking. Thirdly, the conclusion is certified by some experiments. Furthermore, an estimate model is built to forecast the unlocking time of this device, according to one dimensional gas flow model and one dimensional heat transfer model.
AB - The joining and separating device using magnesium alloy band has simple structure and unlocks reliably, and is widely used in the space launching fields. To study the unlocking process of this device affected by the flow of rocket exhaust, the exhausted flow and heat transfer are simulated by using the numerical method firstly. Secondly, considering the material attributes, the load force and temperature, the factors influencing magnesium alloy band breaking are analyzed. It is shown that the load fore and temperature are the main factors of magnesium alloy band breaking and the device unlocking. Thirdly, the conclusion is certified by some experiments. Furthermore, an estimate model is built to forecast the unlocking time of this device, according to one dimensional gas flow model and one dimensional heat transfer model.
KW - Estimate model for unlocking time
KW - Flow and heat transfer
KW - The device for joining and separating
KW - Unlocking process
UR - http://www.scopus.com/inward/record.url?scp=84869845195&partnerID=8YFLogxK
U2 - 10.3873/j.issn.1000-1328.2012.10.004
DO - 10.3873/j.issn.1000-1328.2012.10.004
M3 - Article
AN - SCOPUS:84869845195
SN - 1000-1328
VL - 33
SP - 1384
EP - 1390
JO - Yuhang Xuebao/Journal of Astronautics
JF - Yuhang Xuebao/Journal of Astronautics
IS - 10
ER -