
OVERVIEW OF THE KNITTED MATERIALS WITH VIBRATIONS DAMPING CAPACITY
Author(s) -
Cristina Grosu,
Mirela Blaga
Publication year - 2021
Publication title -
tex teh
Language(s) - English
Resource type - Journals
ISSN - 2068-9101
DOI - 10.35530/tt.2021.54
Subject(s) - vibration , transmissibility (structural dynamics) , field (mathematics) , textile , structural engineering , excitation , phase (matter) , materials science , stress (linguistics) , acoustics , mechanical engineering , engineering , composite material , physics , vibration isolation , mathematics , linguistics , philosophy , electrical engineering , quantum mechanics , pure mathematics
Textile materials are often subjected to different stresses, acting on them in two phases: during theknitting phase, when the yarns and the obtained structure are subjected to cyclic stress, but also during the usephase, when the knitted structures are subjected to various stresses. The dynamic behaviour of knitted fabricsin a vibrating environment is usually evaluated by standardized methods, such as the method using vibrationexciters (e.g., ISO 10819:2013). However, in recent years, the authors' collective has carried out research tocharacterize the behaviour of knitted structures in a vibrating environment, using a well-known method forgenerating vibrations by impact excitation, which is specific to the mechanical field but also has a highpotential for application in the textile field. This method refers to the determination of the free vibrations of anelastic system. Its measurement in the design phase of the system is considered a crucial step, since byknowing the frequency range of the system, the resonance phenomenon in the operational phase can beavoided. Similar results obtained by applying standardized methods for measuring vibration transmissibilityand the currently adapted method from the field of mechanics to the field of textiles, represent a validation forthis type of investigation process and also show the high potential of knitwear to be used in the vibrationenvironment.