CAJ | 학술논문

阐述当前密封圈二维与三维有限元分析存在的不足,介绍一种密封圈二维与三维耦合的分析方法.该方法通过二维与三维的迭代计算,将被密封件的变形引入密封性能的评估,并考虑制造公差、热膨胀、结构变形等因素的影响,能综合分析密封圈与被密封件的结构强度;能有效减小CAE模型的计算规模,让发动机大型密封圈的密封、强度一体化分析成为可能.结合工程开发实例,详细介绍该方法的分析流程,以实例证明被密封件的变形对密封性能的影响不可忽略,采用二维与三维耦合的分析方法能对密封性能做出更全面、更准确的评估.
천술당전밀봉권이유여삼유유한원분석존재적불족,개소일충밀봉권이유여삼유우합적분석방법.해방법통과이유여삼유적질대계산,장피밀봉건적변형인입밀봉성능적평고,병고필제조공차、열팽창、결구변형등인소적영향,능종합분석밀봉권여피밀봉건적결구강도;능유효감소CAE모형적계산규모,양발동궤대형밀봉권적밀봉、강도일체화분석성위가능.결합공정개발실례,상세개소해방법적분석류정,이실예증명피밀봉건적변형대밀봉성능적영향불가홀략,채용이유여삼유우합적분석방법능대밀봉성능주출경전면、경준학적평고.
@@@@In order to improve the respective defects of current 2D and 3D analysis of seal ring,a coupling FEA method of 2D & 3D was presented. In this method,the deflection of sealed component is taken into account for sealing evaluation, as well as the manufacturing tolerance,thermal expansion and deformation etc,so the structure strength and sealing per-formance can be analyzed as a whole through the iterative calculation with 2D & 3D. The CAE calculation scale is reduced in this method,which makes it possible for the integration analysis of sealing and strength of engine large seal ring. An en-gineering developing example was showed to describe the analysis procedure. The results indicate that this method is more exact for the comprehensive analysis of the sealing performance of seal ring.