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机构地区:[1]Key Laboratory of Structural Engineering and Vibration of the Ministry of Education, Department of Civil Engineering, Tsinghua University [2]China Aeronautical Project and Design Institute, Beijing 100011, China [3]China Aeronautical Project and Design Institute
出 处:《Tsinghua Science and Technology》2008年第2期184-190,共7页清华大学学报(自然科学版(英文版)
基 金:the Key Grant Project of Science and Technology Innovation of MOE, P. R. C. (No. 704003)
摘 要:Long-span aircraft hangars have features which differ from other large structural systems. The temperature stresses due to temperature variations often greatly impact the mechanical performance of the structure. The paper presents an analysis of the heat transfer processes and factors which influence the temperature distribution. The AMECO-A380 aircraft hangar at the Beijing Capital International Airport was selected as a practical example to illustrate the use of finite volume analysis to calculate the temperature field taking into account meteorological conditions, solar radiation, heat convection, etc. The temperature distribution and the variation of the length of the upper and lower chords of the grid structure roof were analyzed to develop guidelines for the temperature distributions in very large aircraft hangars. The results show that the temperature effect will be large for long-span hangars, and the temperature stresses due to nonuniform temperatures should be analyzed to guarantee the structural safety of large aircraft hangars.Long-span aircraft hangars have features which differ from other large structural systems. The temperature stresses due to temperature variations often greatly impact the mechanical performance of the structure. The paper presents an analysis of the heat transfer processes and factors which influence the temperature distribution. The AMECO-A380 aircraft hangar at the Beijing Capital International Airport was selected as a practical example to illustrate the use of finite volume analysis to calculate the temperature field taking into account meteorological conditions, solar radiation, heat convection, etc. The temperature distribution and the variation of the length of the upper and lower chords of the grid structure roof were analyzed to develop guidelines for the temperature distributions in very large aircraft hangars. The results show that the temperature effect will be large for long-span hangars, and the temperature stresses due to nonuniform temperatures should be analyzed to guarantee the structural safety of large aircraft hangars.
关 键 词:aircraft hangar temperature field numerical simulation solar radiation energy temperature stress
分 类 号:V267[航空宇航科学与技术—航空宇航制造工程]
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