针对弹载有源相控阵导引头的散热需求,结合其环境温度高、结构重量受限、热流密度高、热耗高的特点,研究了弹载飞行阶段的结构件热容消耗式冷却、相变材料潜热消耗式冷却和自循环液冷冷却三种方式以及地面调试阶段的风冷、液冷方式。结果表明,弹载飞行阶段按工作时长,1 min左右宜采用结构件热容消耗式冷却,5 min左右宜采用相变材料潜热消耗式冷却,10 min或者更长工作时间宜采用自循环液冷冷却;地面调试阶段则统一采用液冷或风冷方式,优选液冷。

According to the requirements of heat dissipation for missile-borne active phased array radar seeker, and the characteristics of high ambient temperature, limited structure and weight, high heat flux, high heat consumption, three cooling methods are studied in missile flight stage, including sensible heat consumption of structural parts, latent heat consumption of phase change materials, and self-circulation liquid cooling, and also, air cooling and liquid cooling are studied in ground debugging stage. The results show that the cooling method of the seeker in missile flight stage is about its working duration, which is sensible heat consumption of structural parts for about 1 minute, latent heat consumption of phase change materials for about 5 minutes, self-circulation liquid cooling for 10 or more minutes, and in ground long time debugging stage is air cooling or liquid cooling. Three cooling methods have significant effects on the missile-borne platform, and provide a reasonable reference.

TN957. 8