中厚铝合金板焊接区变形预补偿数据集

受焊接过程高温与大载荷的影响，贮箱筒段在焊缝区域产生局部凹陷，导致焊后筒段呈现凹凸相间的“梅花瓣”形貌，难以满足环缝焊接的错缝精度指标。针对贮箱筒段焊装变形超差问题，提出大型中厚铝合金壁板焊装变形的精确预测与弹性预补偿方法。提出大型中厚壁板焊装变形的预补偿工艺策略，并开展实验验证。将上述方法应用于重型火箭燃料贮箱环段计算分析，提出大型环段结构焊装变形的精确预测方法与预补偿工艺策略，为重型火箭燃料贮箱的高效与高精度近圆制造提供了技术支撑。本数据集由上海交通大学于2020-2025年研究产生，其中包括大型中厚壁板立式装配焊接变形高效高精度计算数据、大型中厚壁板焊前预补偿实验数据和重型火箭贮箱焊前预变形补偿量计算数据。该数据集包含了中厚板焊接变形精确计算理论模型、有限元软件仿真模型、以及实验验证的测试数据，为重型火箭中厚壁板贮箱近圆制造提供数据支撑。Affected by the high temperature and large loads during the welding process, local depressions occur in the weld zone of the tank cylinder section, resulting in an intermittent convex-concave "plum blossom petal" morphology of the post-welding cylinder section, which makes it difficult to meet the staggered seam accuracy index for girth welding. Aiming at the problem of welding and assembly deformation out of tolerance in the tank cylinder section, an accurate prediction and elastic pre-compensation method for the welding and assembly deformation of large-scale medium-thick aluminum alloy panels is proposed. A pre-compensation process strategy for the welding and assembly deformation of large-scale medium-thick panels is proposed, and experimental verification is carried out. The above methods are applied to the calculation and analysis of the ring section of the heavy-lift rocket fuel tank, and an accurate prediction method and pre-compensation process strategy for the welding and assembly deformation of large-scale ring section structures are proposed, providing technical support for the efficient and high-precision near-circular manufacturing of heavy-lift rocket fuel tanks. This dataset was generated by Shanghai Jiao Tong University during the research from 2020 to 2025, which includes efficient and high-precision calculation data of vertical assembly and welding deformation of large-scale medium-thick panels, pre-compensation experimental data of large-scale medium-thick panels before welding, and calculation data of pre-deformation compensation amount of heavy-lift rocket fuel tanks before welding. This dataset includes the theoretical model for accurate calculation of medium-thick plate welding deformation, finite element software simulation models, and test data verified by experiments, providing data support for the near-circular manufacturing of heavy-lift rocket medium-thick panel fuel tanks.

搜集汇总

背景与挑战

背景概述

该数据集针对中厚铝合金板焊接变形问题，提出了预测与弹性预补偿方法，以解决重型火箭燃料贮箱制造中的精度控制难题。数据集由上海交通大学在2020-2025年研究产生，包含理论模型、仿真数据和实验验证数据，为贮箱近圆制造提供技术支撑。