Research on compensation of curing deformation of large size composite hat truss

doi:10.19936/j.cnki.2096-8000.20230528.016

Abstract

Abstract: The springback deformation problem widely exists in complex composite parts manufactured by autoclave, taking a large size cap shaped truss structure test piece as an example, a multi section profile compensation method is used to compensate the decomposed curing deformation, and the key technical issues involved in the compensation process, such as the selection of thermal expansion compensation base point, the consistency of section measurement, the section deformation compensation method, and the axial distortion compensation, are discussed and analyzed. Finally, a curing deformation compensation method for composite parts with high precision profile requirements is proposed, which realized the high-precision control of composite parts with large aspect ratio, and the profile deviation can be controlled below ± 0.30 mm, which is of guiding significance for the research on the profile compensation of composite part.

Key words: composites, autoclave, curing deformation, compensation, hat-section

CLC Number:

TB332

LU Zhengbin, SUN Wei, LIU Lu, LÜ Xiulei, WEI Ning. Research on compensation of curing deformation of large size composite hat truss[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(5): 108-113.

References

[1] 李桂东. 复合材料构件热压罐成型工装设计关键技术研究[D]. 南京: 南京航空航天大学, 2010.
[2] 陶裕梅, 郑子君, 邵家儒, 等. 纤维增强复材C形圆台壳件固化变形的预测方法[J]. 航空材料学报, 2022, 42(3): 70-79.
[3] 李彩林, 余宁, 文友谊, 等. 复合材料L型结构固化变形的数值模拟与补偿[J]. 塑料工业, 2016, 44(7): 51-54.
[4] 唐兴龄, 宿昊, 司朝润, 等. 复合材料热压罐成型模具型面补偿设计方法研究[J]. 锻压装备与制造技术, 2017, 52(1): 88-92.
[5] 王乾, 关志东, 蒋婷, 等. 纤维体积含量和富树脂对复合材料V型结构固化变形的影响[J]. 复合材料学报, 2018, 35(3): 580-590.
[6] 邹尧, 蔡豫晋. 长桁类复材零件固化变形数值模拟与验证[J]. 航空制造技术, 2020, 63(Z2): 94-101.
[7] 陈晓静. 复合材料构件固化成型的变形预测与补偿[D]. 南京: 南京航空航天大学, 2011.
[8] 彭艳敏, 杨亮, 韩强儒, 等. 大型复杂双曲率复合材料构件固化变形关键问题分析[J]. 航空制造技术, 2019, 62(13): 87-91.
[9] 贾丽杰, 魏冉, 杨霓虹, 等. 复合材料C形结构的回弹变形研究[J]. 航空制造技术, 2018, 44(22):121-130.
[10] 韩小勇, 苏佳智, 王琳, 等. 复合材料机身Z型隔框变形控制研究[J]. 复合材料科学与工程, 2020(1): 87-91.
[11] 岳广全, 张嘉振, 张博明, 等. 模具对复合材料构件固化变形的影响分析[J]. 复合材料学报, 2013, 30(4): 206-210.
[12] 肖遥, 李东升, 吉康, 等. 大型复合材料航空件固化成型模具技术研究与应用进展[J]. 复合材料学报, 2022(3): 51-69.
[13] 王莹, 肖光明, 贺韡, 等. 大型双曲蜂窝夹层结构短舱成型工艺研究[J]. 复合材料科学与工程, 2021(7): 99-104.
[14] 王浩军, 黄雪萌, 房晓斌, 等. 复合材料C型梁类零件变形控制工艺方法的研究[J]. 橡塑技术与装备(塑料), 2013, 23(24): 34-37.
[15] 韩志仁, 杨攀, 佟刚, 等. 基于型面节点的复合材料构件模具型面修正研究[J]. 航空制造技术, 2017(4): 16-19.