Thermal-electric coupling systems analysis of electronic cabinets with consideration of numerical noises
ZHANG Zhuo 1 YU Fei 2 Wang Qiuying 3 Du Shipeng 1
1. College of Automation,Harbin Engineering University,Harbin 150001,China；
2. College of Science, Harbin Engineering University, Harbin 150001, China;
3.College of Information And Communication Engineering, Harbin Engineering University 150001, China
Abstract：One of the difficulties in multidisciplinary design optimization for electronic cabinets is that the design functions are often not smooth or even discontinuous due to numerical noises. In order to tackle this problem, a global optimization strategy for multidisciplinary systems is developed. Firstly, the system analysis problem is transformed into an optimization problem according to the idea of SAND（Simultaneous Analysis and Design）. Kriging models are introduced as surrogate models for the output variables of each subsystem in order to filter the numerical noises. The initial Kriging models are built by using sparse sample points. The location of next samples is determined by an “infill sampling criterion” which is derived by the maximum likelihood estimation. When the simulation tools exhibit large numerical noises, this method can greatly reduce the number of subsystem simulations needed in system analysis compared with other methods such as the fixed point iteration method. Lastly, a typical thermal-electric coupling problem is taken as an example for demonstration of the effectiveness of the proposed method.
收稿日期: 2016-04-07
出版日期: 2017-06-28
引用本文:
张卓 1,于飞 2，王秋滢 3，杜石鹏 1. 考虑数值噪声的热-电耦合系统分析[J]. 振动与冲击, 2017, 36(13): 214-222.
ZHANG Zhuo 1 YU Fei 2 Wang Qiuying 3 Du Shipeng 1. Thermal-electric coupling systems analysis of electronic cabinets with consideration of numerical noises. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(13): 214-222.
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