ワイヤロープに生ずる断線についての基礎的研究 (第1報)
1959 年 75 巻 849 号 p. 156-160
詳細
1959 年 75 巻 849 号 p. 156-160
Wire breaking occurred in the main rope of the aerial rope way, and some tests on wire breaking were tried, and results obtained are as follows.
1. Wire breaking appeared more quickly when hardness of one pulley was more higher than the others.
2. Wire breaking was retarded when sagging of main rope was small.
3. There were 2 sort of wire breaking viz., crack occurred first only in the upper side of wire and then breaking happened, and crack occurred both in the upper and lower sides of wire.
4. When material of pulley was made of soft metal, cracks occuring in the main rope wire were very few, so, breaking of wire was delayed and then increasing speed in the breakings of wire in a main rope was retarded.
5. Scanty strain was generated in the wire when soft roller was used, and when the hardness of roller was higher than that of the former larger strain was generated.
These results were obtained with pilot apparatus of aerial rope way 1st, 2nd and 4th nucha. 5th cervix was, obtained by wire testing machine which was designed by our college, and the 3rd cervix was obtained through these two testings.
