摘要
介绍了机载LRM模块液冷测试设备的结构设计和热设计,叙述了内部液冷循环和外部液冷循环的设计细节,通过工作模式切换,满足小型化和高散热要求。结构方面以机载LRM模块液冷测试设备为例介绍了机载液冷设备模块化设计、结构刚强度、防水密封性和表面防护的设计要点,并设计了一种液体与外界完全隔离的金属波纹管膨胀罐,满足-55~85℃温度范围内液体的热胀冷缩需求,让液冷系统在重力方向不固定的振动、冲击环境下正常工作。热设计方面分别对内部液冷循环和外部液冷循环进行了计算和仿真,介绍了一种采用6SigmaET进行风、液双流体综合仿真的方法,并对测试设备实物的散热效果进行了实际测量。测量结果表明,该测试设备的设计可以满足机载LRM模块生产调试、环境试验和可靠性试验时的散热要求。该测试设备已经进行了实际应用,在应用中满足设计要求。
This paper presents the structural and thermal design of a liquid cooling test equipment for airborne LRM modules.It elaborates on the design details of the internal and external liquid cooling circulation systems,which meet the requirements of miniaturization and high heat dissipation through operational mode switching.In terms of structural design,the paper discusses key considerations for modular design,structural rigidity,waterproof sealing,and surface protection of airborne liquid-cooling equipment,using the LRM module test equipment as an example.A metal bellows expansion tank is designed to fully isolate the liquid from the external environment,accommodating thermal expansion and contraction within a temperature range of-55 to 85℃,and ensuring stable operation under vibration and shock conditions with unfixed gravitational orientation.For thermal design,calculations and simulations are conducted for both internal and external liquid cooling cycles.A dual-fluid(air/liquid)co-simulation method using 6SigmaET is introduced.Experimental measurements confirm the effectiveness of heat dissipation,validating its suitability for production debugging,environmental testing,and reliability testing of airborne LRM modules.The test equipment has been successfully deployed in practical applications, meeting all design requirements.
作者
刘小伟
李恒
蒋金辰
LIU Xiaowei;LI Heng;JIANG Jinchen(The 30th Research Institute of CETC,Chengdu 610041,China)
出处
《机械》
2025年第8期74-80,共7页
Machinery
