凝汽器管板强度的矩阵位移分析法  

Matrix Displacement Method for Calculating the Strength of Tubesheets in a Condenser

作　　者：周翔[1] 赖喜德[1] 陈小明[1] 雷明川[1] 

机构地区：[1]西华大学能源与环境学院,四川成都610039

出　　处：《热能动力工程》2015年第1期72-77,164-165,共6页Journal of Engineering for Thermal Energy and Power

基　　金：国家自然科学基金资助项目(51379179);西华大学研究生创新基金资助项目(ycjj2014182)

摘　　要：采用力学中的矩阵位移法,将HEI标准中所提出的管板梁条力学模型进行了单元离散分析和整体解析,以矩阵位移法为内核算法,在VS2010环境中使用VB.NET语言编写了专用计算软件,并对HEI中的实例进行计算。计算表明:软件计算输出的最大弯矩、最大应力及最大挠度数据与HEI算例中给出的结果相比,相对误差在1%以内;与采用ANSYS-APDL计算的弯矩值相比,自编软件计算的弯矩结果误差在1%以内;在凝汽器管板强度分析计算中采用矩阵位移法对管板梁条力学模型进行求解是可行的。By using the matrix displacement method in mechanics,a unit discrete and overall analysis of the tubesheet beam mechanic model proposed in HEI standard were conducted and with the matrix displacement method serving as the core algorithm,the VB. NET language in the environment of VS2010 was used to prepare a special-purpose software and calculate the cases provided in the HEI standard. The calculation results show that compared with the results given in the calculation examples in the HEI standard,the maximum bending moment,stress and defection have a relative error within 1%. Compared with the bending moment value calculated by using the software Anasys-Apdl,that calculated by using self-prepared software has an error within 1%. In the strength analysis and calculation oftubesheets of a condenser,it is reasonable and feasible to use the matrix displacement method to seek solutions tothe mechanical model for tubesheets and beams.

关 键 词：凝汽器 管板 梁条 矩阵位移法 

分 类 号：O347[理学—固体力学]