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�������պ����ѧѧ�� 2009, Vol. 35 Issue (1) :70-73    DOI:
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�Ӻ�ΰ, ���ܺ�, �� ��*
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Numerical calculation and experimental verification of stress at joint between two pipes of thermal shrouds
Pang Hewei, Meng Xianhong, Zhang Xing,*
School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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ժҪ ���ڴ��Ϳռ价�����ȳ��豸KM6���������Ե�Ӧ��,ʹ�ռ�ʵ���ҽṹ���ڰ�ȫ����,���ѡ��T�͡�L����������ȳ�����,���ô��ͼ������PATRAN,NASTRAN�Թ�����ѹ�������¶��׹�ͬ��������½���Ӧ������,�õ��ؼ���λ��Ӧ��.����ʵ�鷽��ȷ�����ȳ������Ӳ�λ��Ӧ��,��������Ԫ��������ʵ�������бȽ�.�������:����Ԫ����Ľ����ʵ������������һ��,�Ӷ����Բ��ü��㷽��ȷ���ռ�ʵ���ҵĹ���Ӧ��,������ṹ�İ�ȫ��Ԥ��.
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Abstract�� The large special environmental equipment KM6 is subjected to repetitive stress. In order to assure the safely of space laboratories, two kinds types of thermal shroud structures with T and L shape were chosen and the stress analysis was carried out by use of PATRAN & NASTRAN software under stress and temperature spectrums. The stress of critical part was determined. After that, the stress of the same parts was also obtained from experiments, and the results obtained by theoretical calculations and experiments were compared. The results obtained by the finite element method are approximately accordant to that obtained by experiment, and thus the work stress considering the effect of temperature can be determined by numerical method and then the safety of the thermal shroud structures can be predicted accordingly.
Keywords�� space laboratory   shroud   stress     
Received 2008-02-20;
About author: �Ӻ�ΰ(1961-),��,������Դ��,��ʿ��,panghewei@cast.cn.
�Ӻ�ΰ, ���ܺ�, �� ��.�ȳ��ṹ�ܽ�ͷ��Ӧ��������ʵ����֤[J]  �������պ����ѧѧ��, 2009,V35(1): 70-73
Pang Hewei, Meng Xianhong, Zhang Xing, .Numerical calculation and experimental verification of stress at joint between two pipes of thermal shrouds[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2009,V35(1): 70-73
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