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�������պ����ѧѧ�� 2006, Vol. 32 Issue (07) :833-837    DOI:
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����1, ������1, ������2*
1. �������պ����ѧ ��е���̼��Զ���ѧԺ, ���� 100083;
2. �й����ػ�������о�Ժ,���� 100076
Numerical simulation of laser welding in combustion chamber case shell on aeroengine
Wang Su1, Wang Chunxia1, Guo Jungang2*
1. School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;
2. China Academy of Launch Vehicle Technology, Beijing 100076,China

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ժҪ ��Ժ��շ������Ĺؼ�����֮һ——ȼ���ұ��ڻ�ϻ�����˼��⺸�ӵ���ֵ����ģ��.����SYSWELD����ĺ��ӷ�������,��������Ԫ���������о���ȼ���ұ��ڻ�ϻ���캸��ʱ����ĺ��ӱ���,ģ���˱��ڻ�ϻ���⺸��ʱ���¶ȳ���Ӧ�����Լ��������,ͬʱ�Ժ���ģ���е���Դ�������ѧ�Ͻ����˷�����̽��.�ڴ˻����Ͻ���������ڻ�ϻ��ʵ�ʹ���״����ģ���������˶��Է���,��֤�˷��������Ŀ�����,Ϊʵ�ʱ��ڻ�ϻ�����ṩ����������,�����ڱ��ڻ�ϻ���ӹ��շ����ĸĽ�.�÷��������Ժ���������������Ĵ���Ҳ�н������.
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Abstract�� A numerical analysis modeling was created about the case shell on aeroengine combustion chamber, which is one of the crucial parts of the aeroengine, during the process of laser welding. Welding deformation due to circumferential welds at the joint between the two cylindrical shells was studied using the finite element analysis method based SYSWELD. Temperature field, welded joint stress field and deformation in laser welding at case shell were simulated. Heat resource problems during welding were analyzed and discussed from the point of mathematics, based on which the analysis result was qualitatively discussed combined with the factual conditions of the whole case shell for validating the feasibility of the method. The analysis will provide a theoretic reference for factual case shell welded, and is helpful to the improvement of the case shell welding craft methods. The method is also a reference to settle similar problems in welding fields.
Keywords�� finite element analysis   case shell   laser welding   temperature field   stress field   deformation     
Received 2005-07-12;
About author: �� ��(1959-),��,������,����, wangsu@buaa.edu.cn.
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����, ������, ������.���շ��������ڻ�ϻ���⺸������Ԫ��ֵģ��[J]  �������պ����ѧѧ��, 2006,V32(07): 833-837
Wang Su, Wang Chunxia, Guo Jungang.Numerical simulation of laser welding in combustion chamber case shell on aeroengine[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2006,V32(07): 833-837
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http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2006/V32/I07/833
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