【摘要】 针对自行开发的核压力容器三维密封分析程序存在的计算规模较小、计算效率不高的问题,从程序结构和功能上提出了改进办法。同时分析了有限元刚度矩阵的一维变带宽存储和二维等带宽存储的优缺点,给出了基于动态存储技术的二维变带宽存储法的原理和程序代码,并利用改进后的程序对电站核容器进行了瞬态密封分析。为大型结构有限元分析程序的开发提供了高效的存储和简捷的计算方法。更多还原

【Abstract】 Since there are problems of small solving scale and low calculating efficiency in the selfdeveloped program for 3D sealing analysis for nuclear pressure vessel, the improving method on structure and function of the program are presented. Comparing the one dimension variable bandwidth storage method and the two dimension same bandwidth storage method for the stiffness matrix, the theory and program code of the two dimension variable bandwidth storage method is proposed on the basis of the dynamic memory technique. With the improved program, the sealing analysis results of pressure vessel in nuclear power station are presented. The high efficiency storage and short-cut calculating method for the development of the largescale FEM analysis program is also provided.更多还原