Outil prédictif pour la conception et la fabrication de préformes textiles pour composites appliqués à l'aérospatiale

预测复合材料贴花和航空空间纺织品预成型的概念和制造

• 批准号: 524328-2018
• 负责人: Robitaille, Francois
• 金额: $ 8.51万
• 依托单位: University of Ottawa
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=693027
• 关键词: Outil; pr; dictif; pour; la

The project focuses on the design of multilayer textile preforms used in the manufacture of non-structural aeronautical composite parts by liquid-phase molding (LCM). Specifically, the project focuses on the design of industrial methods of manufacturing these preforms ('preforming'). The goal is to develop a digital tool that allows the industrial partner to quickly establish the design, manufacturing steps and textile reinforcement used for the preform of a given geometry. The tool will guide these choices among many scenarios, and identify the best option. The digital tool must 1) establish a preform design that will simplify and speed up manufacturing; 2) identify the manufacturing steps and their sequence, the patterns, the position of the anchors, and communicate everything to the technicians clearly via a 'plybook'; 3) choose the fabric best suited to the specific challenges posed by the geometry of the piece; and 4) propose a scenario that ensures high quality and low variability of preforms in a shorter time - quality will be assessed by inspecting the preforms while dry before the resin is infused to create a composite material. Any complex part geometry can be reduced to a set of simple, parametric basic geometries such as planes, single and double curvature surfaces, and torsion surfaces. The central element of the proposed strategy for this project is to move draping simulations and tissue characterization upstream of the industrial partner's receipt of a given complex geometry, through the construction of two databases independent of the complex geometry to analyze. The central point of the strategy is to do most of the simulation and characterization work before receiving a geometry to be analyzed - and not after; the data is previously stored in two databases, in a form that allows them to be used quickly for any piece of geometry to be analyzed, provided by a client. The partner works in a very competitive international context: the design time, the manufacturing time and the quality of the preforms are critical, as is the time required to create a quote. So, the digital tool must be fast and easy to use.

该项目的重点是设计多层纺织预成型件，用于通过液相成型（LCM）制造非结构航空复合材料部件。具体而言，该项目侧重于设计制造这些预制件（“预成型”）的工业方法。我们的目标是开发一种数字化工具，使工业合作伙伴能够快速建立用于给定几何形状的预成型件的设计、制造步骤和纺织增强。该工具将在许多情况下指导这些选择，并确定最佳选项。数字化工具必须1）建立一个预成型设计，这将简化和加速制造; 2）确定制造步骤及其顺序、图案、锚定件的位置，并通过"手册“将所有内容清楚地传达给技术人员; 3）选择最适合工件几何形状所带来的特定挑战的织物;以及4）提出一种方案，其确保在较短时间内预成型件的高质量和低可变性-质量将通过在树脂被注入以产生复合材料之前在预成型件干燥时检查预成型件来评估。任何复杂的零件几何都可以简化为一组简单的参数化基本几何，如平面、单曲率曲面和双曲率曲面以及扭转曲面。该项目的拟议战略的核心要素是通过构建两个独立于复杂几何形状的数据库进行分析，将覆盖模拟和组织表征移动到工业合作伙伴收到给定复杂几何形状的上游。该策略的中心点是在接收要分析的几何体之前而不是之后完成大部分模拟和表征工作;数据预先存储在两个数据库中，其形式允许它们快速用于客户端提供的任何要分析的几何体。合作伙伴在竞争激烈的国际环境中工作：设计时间、制造时间和瓶坯质量至关重要，创建报价所需的时间也至关重要。因此，数字工具必须快速且易于使用。