超导热模组的设计和优化

Design and Optimization of Super Heat Conduction Module

为全面研究超薄扁平带作为超导热模组发热元件的特性,从物理、静力学、动力学3个方面分析了其传热、受力以及振动性能。结果表明,超薄扁平带有更大的发热面积和更低的线温,升温降温速度快;自身截面惯性矩较小,在实际使用过程中不能自支撑,必须借助辅助部件固定和张紧使用;当空气流过表面会产生绕流,并伴有旋涡脱落,导致振动和噪声。根据理论分析和实验测试可以得出,减小超薄扁平带长度方向跨度,可以避免涡激振动频率落在风机常用风速区间。

To study the characteristics of ultra-thin flat ribbon as heating element of super heat conduction module,the heat transfer,stress and vibration performance of the ribbon were analyzed from physics,statics and dynamics.The analysis results show that ultra-thin ribbon has larger heating area and lower line temperature and its heating and cooling speed is fast;the inertia moment is small,so it can be not supported itself,then it must be fixed and tensioned with the auxiliary components.When the air flows through the surface,it will generate vortex shedding causing vibration and noise.Reducing the span along the length direction can avoid the shedding frequency falling into the common wind speed range of the fan based on the theoretical analyses and experiment results.