ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Parametric geometric modeling of dome⁃shaped multi⁃layer interlock woven preform
Received date: 2023-09-08
Revised date: 2023-10-08
Accepted date: 2023-12-18
Online published: 2023-12-21
Supported by
National Science and Technology Major Project （2017-Ⅶ-0011-0177）
Dome-shaped Multi-layer Interlock Woven Preform （DIWP） prepared by integrated copying weaving technology has the characteristics of good design， stable structure and strong bearing capacity. Therefore， it is crucial to investigate the microstructure of DIWP and construct its parametric geometric model for predicting the mechanical properties of DIWP and guiding its process design. The construction method of DIWP parametric model is comprehensively studied based on the preform macro-structure characteristics and weaving process parameters， and the solid geometric model is established by using SolidWorks software. The results show that the relationship between the spatial coordinates and the motion path of DIWP yarn can be described by introducing the weft inclination. The assumption of parabolic convex lens yarn section in the form of quadratic function with one variable is applicable to DIWP. Three kinds of DIWP parametric models with different meso-structures are discussed， and subsequently， the theory of DIWP parametric model construction with systematic， reliable and universal research value is further obtained. The analytical formulas of the model are entirely derived by MATLAB software， and they are solvable and unique. The parametric model can effectively characterize the spatial topology relationship of DIWP and calculate the fiber volume content. Compared with the measured values， the error is -3.43%. The results provided a theoretical basis for the simulation of DIWP and had guiding significance for the design of the actual preparation process.
Changlong ZHANG , Li CHEN , Jing WANG , Wanli YUE , Xiaoping SHI . Parametric geometric modeling of dome⁃shaped multi⁃layer interlock woven preform[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2024 , 45(16) : 429556 -429556 . DOI: 10.7527/S1000-6893.2023.29556
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