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�������պ����ѧѧ�� 2005, Vol. 31 Issue (02) :255-260    DOI:
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����ӡ1, ������1, ��ȫ��2, ���1*
1. �������պ����ѧ ��Դ�붯������ѧԺ, ���� 100083;
2. ����������е�о���, ���� 710000
Finite element analysis of O-ring seal structure
Hu Dianyin1, Wang Rongqiao1, Ren Quanbin2, Hong Jie1*
1. School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;
2. Shanxi Power Machinery Institute, Xi’an 710000, China

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Abstract�� Applying the theory of nonlinear finite element analysis, the stresses and strain of the elastomeric O-ring seals at storage and working process were analyzed. The factors influencing sealing performance were considered, such as gap between upper and nether flange, initial compressibility, groove width, sealing materials, O-ring section diameter and the work temperature. Results show that the gap breadth, initial compressibility and seals material do great contributions to the maximum contact normal stress, and the groove notch and bottom fillets act upon the maximum shear stress obviously. The analysis lays the foundation of the optimum design of sealing structure. Based on the stresses distribution and the brittle position, the failure mode & criteria were discussed and established.
Keywords�� stresses   strain   sealing   O-ring seals     
Received 2004-06-20;
About author: ����ӡ(1980-),Ů,����������,��ʿ��, hdyscbd@sina.com.
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����ӡ, ������, ��ȫ��, ���.��O��Ȧ�ܷ�ṹ������Ԫ����[J]  �������պ����ѧѧ��, 2005,V31(02): 255-260
Hu Dianyin, Wang Rongqiao, Ren Quanbin, Hong Jie.Finite element analysis of O-ring seal structure[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2005,V31(02): 255-260
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