基于Mori-Tanaka方法的冷凝器强度研究  

Study on Condenser Strength based on Mori-Tanaka Method

作　　者：吕东阳 詹腾腾 高万博 LYU Dong-yang;ZHAN Teng-teng;GAO Wan-bo(No.703 Research Institute of CSSC,Harbin,China,150078)

机构地区：[1]中国船舶集团有限公司第七〇三研究所,黑龙江哈尔滨150078

出　　处：《热能动力工程》2023年第1期129-136,共8页Journal of Engineering for Thermal Energy and Power

摘　　要：为解决冷凝器管束众多,难以按真实情况建模的问题,基于Mori-Tanaka方法提出双尺度分析方法,根据该方法建立了等效模型并通过验证。建立了冷凝器整体计算模型,在实际工况4.1和4.8 MPa条件下针对冷凝器强度进行研究。结果表明:等效后的模型最大计算误差为5.2%,满足工程允许误差范围;冷凝器整体最大位移在进水侧管板处;内管板内部等效区应力分布均匀,最大应力位于管板边缘与法兰连接处;两种工况的最大应力均满足材料屈服强度。In order to solve the problem that it is difficult to model the real situations due to many condenser tube bundles, a two-scale analysis method based on Mori-Tanaka method is proposed.The equivalent model is estabilished according to the two-scale analysis method and verified.Through the model verification, the overall calculation model of the condenser is established, and the strength of the condenser is studied under the actual working conditions of 4.1 MPa and 4.8 MPa.The results show that the maximum calculation error of the equivalent model is 5.2%,which meets the engineering allowable error range;the overall maximum displacement of the condenser is at the tube sheet on the inlet side;the stress distribution in the equivalent area of the inner tube sheet is uniform, and the maximum stress is located at the connection of tube sheet edge and flange;the maximum stresses of both working conditions meet the material yield strength.

关 键 词：双管板 有限元分析 MORI-TANAKA方法 双尺度分析 应力分布 

分 类 号：TK221[动力工程及工程热物理—动力机械及工程]