SonicFibre – Experimental and numerical multiscale analysis of temporary friction reduction during textile production by means of plate vibration excitation

纺织材料如非织造物和纱线可以被制造成表现出广泛的性质，包括轻质和阻尼性质、高拉伸强度、耐火性、防水性、透气性和成本效率。因此，它们可用于无数工业应用，包括汽车、航空航天、医疗应用（如口罩、过滤、农业、家具、建筑和包装）。这种制造材料的结构和强度的特征在于各个纤维的力配合和形状配合连接。虽然纤维间摩擦在保持最终产品的形状和强度方面起着至关重要的作用，但它对制造过程提出了严峻的挑战。例如，较高的摩擦力会导致机器部件的损坏和磨损、较高的能耗和较短的维护周期。因此，技术，如振动刺激的纺织材料和润滑可以用来暂时减少纤维间的摩擦在纺织production.The本研究项目的目的是开发一个多学科的实验和数值多尺度分析的纺织生产中使用板振动激励在很宽的频率范围内的暂时减少摩擦。 为了开展这一研究项目并涵盖各个方面，纺织技术研究所（ITA），机械理论，机器动力学和机器人研究所（IGMR）和普通力学研究所（IAM）之间的联合专业知识和合作是必要的。所涉及的主题包括研究非织造布作为多相多孔材料的多尺度力学响应，分析和测量由大面积板-多孔层组成的振动系统，实验校准和验证数值结果，以及使用获得的数据优化纺织生产过程。由于所研究材料的广泛应用，该研究项目的目标是优化生产过程，降低能耗，减少机器零件的损坏和磨损，将带来显著的经济和社会效益，特别是在能源和环境领域。

Textile materials such as nonwovens and yarns can be manufactured to exhibit a wide range of properties, including lightweight and damping properties, high tensile strength, fire resistance, water resistance, breathability and cost efficiency. As such, they can be used in countless industrial applications, including automotive, aerospace, medical applications such as face masks, filtration, agriculture, furniture, construction, and packaging. The structure and strength of such manufactured materials are characterised by a force-fit and form-fit connection of the individual fibres. Although interfibre friction plays a crucial role in maintaining the shape and strength of the final product, it poses a serious challenge in the manufacturing process. For example, higher friction forces lead to damage and wear of machine parts, higher energy consumption and shorter maintenance cycles. Therefore, techniques such as vibration stimulation of textile materials and lubrication can be used to temporarily reduce the interfibre friction during textile production.The aim of this research project is to develop a multidisciplinary experimental and numerical multiscale analysis of temporary friction reduction in textile production using plate vibration excitation in a wide range of frequencies. To carry out this research project and cover the various aspects, the combined expertise and cooperation among the Institute of Textile Technology (ITA), the Institute of Mechanism Theory, Machine Dynamics and Robotics (IGMR) and the Institute of General Mechanics (IAM) is necessary. The topics to be covered include studying the multiscale mechanical response of nonwovens as multiphase porous materials, the analysis and measurement of the vibrating system consisting of a large area plate-porous layer, the experimental calibration and validation of the numerical results, and the use of the obtained data for the optimisation of the textile production process.Due to the wide range of applications for the studied materials, the proposed research project, with its goals of optimising the production process, reducing energy consumption, and decreasing damage and wear on machine parts, will bring significant economical, and societal benefits, especially in the areas of energy and the environment.