…If the cant is too large, there is a possibility that the train will overturn on the inside of the curve, so the amount of cant is determined according to the radius of the curve and the speed of the train. In addition, since at least two axles of a vehicle are fixed to the same frame, the gauge must be wider than in the straight section in order for the vehicle to pass smoothly through the curve without squeaking, and this expansion is called slack. When a vehicle moves from a straight section to a curved section, the radius of the curve suddenly changes from infinity to a fixed value, and as mentioned above, the curved section is subjected to large shocks and vibrations due to the cant and slack. … *Some of the terminology that mentions "slack" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…カントが大きすぎると逆に曲線の内側に転覆する可能性が生じてしまうため,カント量は曲線半径および列車の通過速度に応じて決定されている。また車両の車軸は少なくとも2軸が同じ台枠に固定されているため,曲線部において車両がきしまず円滑に通過するためには直線部分より軌間を広げる必要があり,その拡大寸法をスラックslackと呼んでいる。車両が直線区間から曲線区間に入るときには曲線半径が無限大から一定の値に急変し,さらに前述のように曲線部においてはカント,スラックが付してあるため大きな衝撃や動揺を受ける。… ※「slack」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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