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답면 브레이크 슈의 마찰계수와 제동성능향상을 위한 평가기술
최경진(Choi Kyung-Jin),이동형(Lee Dong-Hyung),이회성(Lee hisung),송문석(Song Mun-Suk),신유정(Shin You-Jung) 한국철도학회 2003 한국철도학회 학술발표대회논문집 Vol.- No.-
In tread braking of freight cars, braking force is produced by the friction between the wheel and the braking shoe. Friction coefficients such as the brake power, weight variation and brake shoe types should be sensitively treated as the design parameters. The conditions of the car, empty and weighted, should also be taken into consideration in brake force design and the control of brake force has some limitations in terms of the brake system design so that the brake materials selection should be considered as important measures to solve that difficulties. Friction characteristics of brake materials should remain within the range of maximum and minimum value and the friction performance should remain stable regardless of braking time and temperature. This study presented an experimental evaluation method to secure optimum braking performance by keeping safe braking effect and braking distance by the friction coefficient of the brake shoe of the freight cars.