天津工业大学学报2026，Vol.45Issue(2)：31-38,8.DOI:10.3969/j.issn.1671-024x.2026.02.005
基于声音激励的涤纶纱线固有频率分析
Analysis of natural frequency of polyester yarn under sound excitation
摘要
Abstract
In order to study the natural frequency of yarn,a vibration detection device for yarn was built using a spectaome-ter and sound sources.Through the non-contact acoustic excitation of yarn vibration,the resonance phenomenoa of polyester yarns with three different Young's moduli were analyzed under various yarn lengths and tensile forces when excited by sound.The fast Fourier transform(FFT)method was used to obtain the natural frequency of the yarns.The results show that there is a significant effect of yarn length,tensile force and Young's modulus on the natural frequency of the yarns.The longer the yarn is,the lower the natural frequency will be.The greater the tensile force of the yarn is,the higher the natural frequency will be.The greater the modulus of the yarn is,the higher the natural frequency will be.Under the experimental conditions in this paper,the natural frequency of the polyester yarn with a Young's modulus of 2.3 GPa reaches its maximum value of 135 Hz at a length of 30 cm and a tension of 9.8 cN.关键词
声音激励/涤纶纱线/共振/固有频率/杨氏模量Key words
sound excitation/polyester yarn/resonance/natural frequency/Young's modulus分类
轻工纺织引用本文复制引用
张美玲,吴培铭,陶落雁,刘霖轩,叶健青,杨耀林..基于声音激励的涤纶纱线固有频率分析[J].天津工业大学学报,2026,45(2):31-38,8.基金项目
技术创新引导专项资助项目(20YDTPJC01380) （20YDTPJC01380）
