TY - GEN
T1 - Thermal analysis method for avionic device with abnormal geometry under complex air flow field
AU - Zhang, Wenjun
AU - Li, Nan
AU - Gu, Hantian
AU - Fu, Guicui
AU - Liu, Yanchao
PY - 2011
Y1 - 2011
N2 - To save the weight and volume of the bracket, the avionic devices are sometimes fixed onto the airframe from outside directly in the design of air craft with small dimension, which will always lead to an abnormal geometry of the avionic device's case and rearranging of the circuit board assemblies (CBAs), to achieve the aerodynamics goal. However, the inner environment and the air flow outside the craft, which can affect the temperature distribution over the CBAs prominently, have to be considered during thermal analysis at the same time. This paper recommends and presents a method of avionic device thermal simulation and analysis, which can solve the problems caused by the abnormal geometry of the case and the air flow condition. Thermal model should be amended and verified by physical test, and the thermal design of the device can be improved on the basis of thermal simulation. Appropriate baffle and fixed flow also should be added to simulate the real air flow condition in the case.
AB - To save the weight and volume of the bracket, the avionic devices are sometimes fixed onto the airframe from outside directly in the design of air craft with small dimension, which will always lead to an abnormal geometry of the avionic device's case and rearranging of the circuit board assemblies (CBAs), to achieve the aerodynamics goal. However, the inner environment and the air flow outside the craft, which can affect the temperature distribution over the CBAs prominently, have to be considered during thermal analysis at the same time. This paper recommends and presents a method of avionic device thermal simulation and analysis, which can solve the problems caused by the abnormal geometry of the case and the air flow condition. Thermal model should be amended and verified by physical test, and the thermal design of the device can be improved on the basis of thermal simulation. Appropriate baffle and fixed flow also should be added to simulate the real air flow condition in the case.
KW - air flow field
KW - avionic device
KW - thermal analysis
UR - https://www.scopus.com/pages/publications/80052443642
U2 - 10.1109/ICRMS.2011.5979473
DO - 10.1109/ICRMS.2011.5979473
M3 - 会议稿件
AN - SCOPUS:80052443642
SN - 9781612846644
T3 - ICRMS'2011 - Safety First, Reliability Primary: Proceedings of 2011 9th International Conference on Reliability, Maintainability and Safety
SP - 1314
EP - 1318
BT - ICRMS'2011 - Safety First, Reliability Primary
T2 - 2011 9th International Conference on Reliability, Maintainability and Safety: Safety First, Reliability Primary, ICRMS'2011
Y2 - 12 June 2011 through 15 June 2011
ER -