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

非织造布和纱线等纺织材料可以生产出多种性能，包括轻质和减震性能、高拉伸强度、耐火性、耐水性、透气性和成本效益。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是单个纤维的力配合和形式配合连接。尽管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，但它在制造过程中构成了严重的挑战。例如，较高的摩擦力会导致机器零部件的损坏和磨损，更高的能源消耗和更短的维护周期。因此，可以利用纺织材料的振动激励和润滑等技术来暂时减少纺织生产中的纤维间摩擦。本研究项目的目的是在广泛的频率范围内利用平板振动激励进行纺织生产中暂时减摩的多学科实验和数值多尺度分析。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、机械动力学和机器人研究所(IGMR)和通用机械研究所(IAM)之间的专业知识和合作是必要的。所涉及的课题包括研究作为多相多孔材料的非织造布的多尺度力学响应、由大面积平板-多孔层组成的振动系统的分析和测量、数值结果的实验校准和验证，以及利用所获得的数据来优化纺织生产过程。由于所研究的材料的广泛应用，拟议的研究项目的目标是优化生产过程，降低能源消耗，减少机械部件的损坏和磨损，将带来显著的经济、社会效益和社会效益，特别是在能源和环境方面。

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.