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北京A380机库温度场分布研究
裴永忠1,沈金龙1,朱丹1,石永久2,白音2
摘 要

(1 中国航空规划建设发展有限公司,北京 100120; 2 清华大学土木工程系,北京 100084)
[摘要]大型维修机库跨度巨大,使用过程中室内温度场的变化较大,产生的温度应力对屋盖结构受力情况会产生很大的影响。采用数值模拟的方法,对北京A380大跨度机库工程建立有限元模型,考虑气象条件、太阳辐射、对流换热等条件的综合影响,系统分析了屋顶网架上、下弦平面的温度分布情况以及随时间变化的规律,为A380机库结构的温度作用分析提供了较为可靠的依据。
[关键词]机库;温度场;数值模拟;对流换热系数;温度作用
Analysis on temperature field distribution of Beijing A380 Aircraft Hangar
Pei Yongzhong1, Shen Jinlong1, Zhu Dan1, Shi Yongjiu2, Bai Yin2(1 China Aviation Planning and Construction Development Co., Ltd., Beijing 100120, China; 2 Tsinghua University, Beijing 100084, China)
Abstract:Long-span roof structure often used in large aircraft hangar will be influenced by temperature stress caused by variation of temperature field inside during employment. However, relative researches are rare. By numerical simulation method, a FEA model of long-span hangar has been established for Beijing A380 Aircraft Hangar to analyze the temperature distribution and variation of upper and lower chord in grid structural roof taking account of meteorological condition, solar radiation and heat convection etc. It offers reliable basis for calculation of temperature stress of A380 hangar.
Keywords:aircraft hangar; temperature field; numerical simulation; heat convection factor; temperature action
作者简介:裴永忠(1968-),男,博士,研究员级高级工程师,院副总结构师,Email:pyz200801@126.com。
参考文献
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