Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
권호 표지

Sound Design System for Knitted Fabrics Using Sound Properties and Physiological Responses(I) -Sound Characteristics and Mechanical Properties of Weft Knitted Fabrics-

소리특성과 생리적 반응을 이용한 편성물의 소리디자인 시스템(I) -위편성물의 소리특성과 역학적 특성-

  • Cho, Gil-Soo (Department of Clothing and Textiles, Yonsei University) ;
  • Kim, Chung-Jeong (Research Institute of Clothing & Textile Sciences, Yonsei University)
  • 조길수 (연세대학교 의류환경학과) ;
  • 김춘정 (연세대학교 의류과학연구소)
  • Published : 2006.10.31
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Abstract

This research aimed to analyze the mechanical properties and sound characteristics of weft knitted fabrics for establishing database of sound design system for knitted fabrics. The specimens consisted of 27 weft knitted fabrics. Mechanical properties of the knitted fabrics were measured with Kawabata evaluation system (KES). The frictional sounds of specimens were recorded by a sound generator and transformed into sound spectrum by FFT. The level pressure of total sound (LPT), level range ($\Delta$f), and frequency difference ($\Delta$f) were calculated from the sound spectra obtained in the FFT analysis. Zwicker's psychoacoustic parameters such as loudness(Z), sharpness(Z), roughness(Z), and fluctuation strength(Z) were calculated. The weft knitted fabrics have similar values of roughness(Z) and fluctuation strength(Z). Polyester fabrics with low elongation at maximum load (EM) and high coefficient of friction(MIU) showed the loudest and the sharpest frictional sound. The lyocell fabrics with low bending properties (B, 2HB) and thickness showed the most quiet and softest frictional sounds. Bending properties, surface properties, thickness and weight in weft knitted fabrics showed high relationship with the physical and psychoacoustic properties of frictional sound.

Keywords

References

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