| 摘要: |
| 贮箱壁板是运载火箭箭体的主承力构件，在其制造过程中难以避免产生不期望变形，后期必须对壁板进行校正。本文针对目前贮箱壁板采用人工锤敲校形存在的校形质量不稳定、噪音大、劳动强度大等问题，以航天典型交叉筋条结构铝合金高筋壁板为研究对象，引入机械化方法对壁板进行校形。首先设计了机械校形装置及校形方案，之后利用有限元仿真软件ABAQUS模拟分析了不同误差壁板变形校正所需校形力的变化规律，拟合出校形力大小与校形量之间的函数关系，在此基础上开展了壁板校形试验。试验结果显示，经过机械校形得到的壁板表面质量好，外形精度高，符合生产制造要求。研究表明，机械校形方案用于铝合金贮箱壁板的校形工作行之有效，有助于应对未来壁板型号种类增多带来的高质量、高效率制造要求。 |
| 关键词: 壁板 机械校形 装置设计 有限元模拟 校形规律分析 |
| 基金项目:上海市青年科技启明星项目（21Q****4500） |
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| Research on Mechanical Calibration Technology of Aluminum Alloy Tank Panel |
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Xu Chen Xu Lang Meng Jiajie Feng Sule He Dongqing Gu Guorong
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Shanghai Spaceflight Precision Machinery Institute, Shanghai 201600
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| Abstract: |
| The tank panel is the main load-bearing component of the rocket body. It is difficult to avoid unexpected deformation in the manufacturing process, and the panel must be corrected in the later stage. In order to solve the problems such as unstable quality, loud noise and high labor intensity in the manual hammering of the tank panel, this paper takes the aluminum alloy high-reinforced panel of the typical aerospace cross-reinforced structure as the research object, and introduces a mechanized method to calibrate the panel. Firstly, the mechanical calibration device and the calibration scheme are designed, and then the finite element software ABAQUS is used to simulate and analyze the variation law of the calibration force required for the deformation correction of the wall panels with different errors, and the functional relation between the calibration force and the calibration quantity was fitted out. On this basis, the calibration is good, the contour accuracy is high, and it meets the requirements of manufacturing. The research shows that the mechanical calibration scheme is effective for the calibration work of aluminum alloy tank panels, which is helpful to meet the requirements of high quality and high efficiency manufacturing brought by the increase of types of panels in the future. |
| Key words: panel mechanical calibration device design finite element simulation analysis of calibration law |
