干燥盘电阻焊结构有限元分析及设计

发布时间：2018-06-20 20:48

本文选题：干燥盘 + 电阻焊　；参考：《天津大学学报(自然科学与工程技术版)》2017年10期

【摘要】：干燥盘为具有多焊缝、大尺寸和大变形等特点的薄壁压力容器,采用电阻焊焊接时焊点数量直接影响干燥盘的承载能力、变形情况和焊接工作量.基于ANSYS模拟软件建立电阻焊干燥盘模型,研究不同工作温度和压力下干燥盘的变形和应力分布,从而设计满足工艺要求的焊点数量.模拟结果表明,干燥盘薄弱环节一般出现在板的内孔和外沿冲窝分布不均匀处.在极限工作条件300,℃、0.4,MPa下,当焊点等效直径为17,mm,即每个冲窝内采用5个焊点焊接时,干燥盘的最大变形为0.577,mm,最大应力为174,MPa,满足工艺变形和强度要求.根据上述结构设计生产出干燥盘并进行水压试验,结果表明水压试验合格,模拟得到的干燥盘结构设计是可行的.
[Abstract]:The dry disk is a thin-walled pressure vessel with the characteristics of multi-weld, large size and large deformation. The number of solder joints directly affects the bearing capacity, deformation and welding workload of the dry disk when welding with resistance welding. Based on ANSYS simulation software, the resistance welding drying plate model was established to study the deformation and stress distribution of the plate under different working temperature and pressure, so as to design the number of solder joints to meet the requirements of the process. The simulation results show that the weak points of the drying plate usually occur in the uneven distribution of the inner hole and the outer flushing hole of the plate. When the equivalent diameter of solder joint is 17mm, that is, when the solder joint is welded by five solder joints in each impact nest, the maximum deformation and stress of the dry disk are 0.577mm and 174mPa respectively, which meet the requirements of process deformation and strength. According to the above structure design, the drying disc is produced and the water pressure test is carried out. The results show that the water pressure test is qualified, and the structural design of the simulated drying disc is feasible.
【作者单位】：天津大学材料科学与工程学院;天津市现代连接技术重点实验室;石家庄铁道大学材料科学与工程学院;
【基金】：国家自然科学基金资助项目(51475325) 国家科技支撑计划资助项目(2014BAF12B05) 河北省科技支撑计划资助项目(13211903D)~~
【分类号】：TG453.9

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