通风失效后民用飞机EE舱温度计算研究  

Temperature Calculation of Civil Aircraft EE Bay After Ventilation Failed

作　　者：袁建新[1] 刘牧[1] 

机构地区：[1]上海飞机设计研究院,上海201210

出　　处：《民用飞机设计与研究》2015年第2期60-62,92,共4页Civil Aircraft Design & Research

摘　　要：建立了EE舱通风失效状态下温度计算模型,计算了热天巡航状态下通风失效后EE舱空气温度变化。针对通风失效后一段时间内EE舱空气超温的情况,提出了通风失效后可关断部分不影响飞行安全的电子设备以降低进入EE舱的热流、利用飞机内外压差产生的排气冷却备份、降低绝热层热阻等设计和操作措施的建议。The temperature calculation model of civil Aircraft EE bay under the ventilation failure is established in this paper. The temperature transformation of EE bay after ventilation failure at the ISA＋25 ℃ cruise condition is present. For air temperature of EE bay exceeding the limit, three proposals of design or operation are provided as follow ： shut off the avionics that have no impact on the flight safety, make use of the pressure difference to extract the hot air overboard providing backup ventilation, or reduce the conduction thermal resistance of the insulation of EE bay.

关 键 词：EE舱 温度计算 通风失效 民用飞机 

分 类 号：V245.3[航空宇航科学与技术—飞行器设计]