| Autor: |
Takuya, CHINEN, Akio, SAKAGUCHI, Hirokazu, KIMURA, Yo-ichi, MATSUMOTO, Hideo, MOROOKA, Harumi, MOROOKA |
| Zdroj: |
Journal of Textile Engineering; Jul/Aug2011, Vol. 57 Issue 4, p69-74, 6p |
| Abstrakt: |
So (Koto) is a traditional Japanese horizontal harp; in order to establish a measuring system for quantitatively evaluating the durability of So-strings using So-nails (Koto-zume), the authors developed a measuring apparatus. The durability of three kinds of So-string (silk, multi-polyester, mono-polyester) were determined. The apparatus used a simulated standard So-nail playing method. A So-nail was attached to the shaft of a motor and rotated at a constant speed. The So-nail played the string until it was broken. The authors defined the number of times the string broke as an indicator of the durability of the So-string and developed standard experimental conditions to compare the durability of different strings. The length, tension and play speed were 20 cm, 147 N, and 180 rpm respectively. The silk, multi-polyester and mono-polyester strings broke at the times of 3267, 7450 and 11428 times, respectively. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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