Preforming Cell based on single fibre manipulation

基于单纤维操控的预成型单元

• 批准号: 508954384
• 金额: --
• 依托单位: Universität Stuttgart
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2022
• 资助国家: 德国
• 起止时间: 2021-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/508954384?language=en
• 关键词: Preforming; Cell; based; single; fibre

At the Institute for Aircraft Design (IFB) at the University of Stuttgart, lightweight structures and innovative manufacturing techniques in the field of high-performance fibre-reinforced composites (FRC) are researched, developed and transferred into application-oriented prototypes. For this purpose, virtual design and calculation methods are created in parallel, resource-efficient and sustainable material and product manufacturing processes are developed and validated with the help of certified testing techniques. For the research area of lightweight construction simulation and manufacturing technology of FRC, the IFB is applying for an integrative preforming cell based on single fibre manipulation in order to open up new research approaches for FRC structures in aviation in future. The integrative preforming cell based on single fibre manipulation aims to combine different processing techniques, so-called processing modules of single fibres into a rapidly configurable, interlinked, networked, self-monitoring and sensor-supported production environment for components made of FRC at laboratory level. The targeted and sensor-monitored manipulation and guidance of one or more directed reinforcement fibres during processing characterises the single-fibre manipulation in order to generate specifically adjustable fibre architectures of the load-path-compliant and near-net-shape parts. The reinforcement fibres should be able to be processed in the form of rovings, yarns, spread and bindered tapes (incl. thin-ply) and tow-pregs in order to explore future semi-finished fibre products for high-performance applications. For the production of flat, planar and near-net-shape preforms, additive single-fibre laying processes will be used, which, in addition to curved, contour-following fibre paths, can also produce straight, unidirectional paths. In another processing module, three-dimensional hollow fibre architectures are to be created using a new bobbin carrier technology in the braiding process. The freely configurable individual fibre manipulation in the radial braiding process is to be achieved through the first-time use of electronic bobbin units, which are to be developed for this cell on the basis of the institute's own preliminary work. The yarn force that can thus be variably adjusted in the process will lead to completely new load-appropriate fibre architectures in addition to a significant shift in the current process windows. Due to the variable yarn force during braiding as well as the possibility of a targeted material feed and retraction, it is thus also possible to process component geometries that were previously impossible to braid. As the basis for a software-defined manufacturing approach, the plant modules are to be digitally linked via an IoT platform. Continuous process data acquisition, storage and parallel evaluation provide a previously unavailable basis for research into future digitally supported product and process developments.

斯图加特大学飞机设计研究所（IFB）研究、开发高性能纤维增强复合材料（FRC）领域的轻质结构和创新制造技术，并将其转化为面向应用的原型。为此，我们并行创建虚拟设计和计算方法，并借助经过认证的测试技术开发和验证资源高效且可持续的材料和产品制造流程。在纤维增强混凝土结构轻量化模拟与制造技术研究领域，IFB正在申请基于单纤维操纵的一体化预成型单元，为未来航空纤维增强混凝土结构的研究开辟新的途径。基于单纤维操作的一体化预成型单元旨在将不同的加工技术（所谓的单纤维加工模块）联合收割机组合成用于在实验室水平上由FRC制成的部件的快速可配置、互连、联网、自监控和传感器支持的生产环境。在加工过程中对一个或多个定向增强纤维的有针对性的和传感器监测的操纵和引导表征了单纤维操纵，以便生成负载路径顺应性和近净形部件的特定可调节的纤维架构。增强纤维应能够以粗纱、纱线、展开和粘合带（包括纤维）的形式进行加工。薄层）和丝束预浸料，以探索未来的半成品纤维产品的高性能应用。为了生产扁平、平面和近净形预制件，将使用添加剂单纤维铺设工艺，除了弯曲的、轮廓跟随的纤维路径之外，还可以产生直的、单向的路径。在另一个加工模块中，三维中空纤维结构将在编织过程中使用新的线轴载体技术来创建。径向编织工艺中可自由配置的单根纤维操作将通过首次使用电子线轴单元来实现，该电子线轴单元将在研究所自己的初步工作基础上为该单元开发。因此，在工艺中可以快速调节的纱线力将导致全新的适合负载的纤维结构，以及当前工艺窗口的显著变化。由于编织过程中纱线力的变化以及目标材料进给和回缩的可能性，因此也可以加工以前无法编织的部件几何形状。作为软件定义制造方法的基础，工厂模块将通过物联网平台进行数字化连接。连续的过程数据采集、存储和并行评估为研究未来数字化支持的产品和过程开发提供了以前不可用的基础。