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�������պ����ѧѧ�� 2009, Vol. 35 Issue (7) :899-903    DOI:
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�����, ������, �� ΰ, �ջ���*
�������պ����ѧ ��е���̼��Զ���ѧԺ, ���� 100191
Technology of light-weight design for wire-winding prestressed cylinder structure
Li Huili, Lang Lihui, Jiao Wei, Su Huaizhong*
School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract�� Based on the iso-shear stress theory a light-weight wire-winding prestressed working cylinder for isostatic pressing equipment was designed through application of the multi-island genetic algorithm. A light-weight design model was defined. The maximum inner pressure in the cylinder was 300��MPa and the minimum inner diameter was 500��mm. Within these specifications the weight of the design was minimized. The weight of the conventional design is 9.03 tons, and the weight of the optimized design is 8.53 tons, corresponding to a ��5.5%�� reduction. It was verified by an expert system and CAE software that the optimized cylinder has the necessary strength, rigidity and stability and that the inner diameter is greater than 500��mm after prestressed. As it was proved, the design is reasonable and the muti-island genetic algorithm is an structural optimization method which gives a fast convergence. This method can also solve the weight-optimization problems of isostatic pressing equipment for extra-high pressure.
Keywords�� genetic algorithms   structural design   hot isostatic pressing   light weight structures   optimization   expert systems   simulation     
Received 2008-06-19;
Fund:

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About author: �����(1979-),Ů,����������,��ʿ��,xuchanglhl@tom.com.
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�����, ������, �� ΰ, �ջ���.ԤӦ����˿���Ƹ���ṹ�������ؼ�����[J]  �������պ����ѧѧ��, 2009,V35(7): 899-903
Li Huili, Lang Lihui, Jiao Wei, Su Huaizhong.Technology of light-weight design for wire-winding prestressed cylinder structure[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2009,V35(7): 899-903
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