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Testing the Friction Characteristics of Industrial Drum Brake Linings

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In the present study a new brake setup was developed to test drum brake linings on an industrial brake with drum diameter of 30′′. During the tests performed on the setup, the brake undergoes a series of cycles in which the drum is slowed down from service speed to standstill. In each cycle the same amount of energy is dissipated as during a realistic safety stop. This was obtained by adding a flywheel in the setup so that the system's kinetic energy at service speed matches the energy of the hoisting system dissipated during an emergency stop. Two different brake lining materials were characterized. Both materials were subjected to two test series to study the changes in coefficient of friction over a number of cycles. It was observed that the coefficient of friction of both linings was dependent on the drum temperature. The coefficient of friction of the first material decreased with increasing drum temperature, while the latter had the opposite behaviour.
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Document Type: Research Article

Affiliations: Department of Mechanical Construction and Production at Ghent University, Ghent, Belgium

Publication date: 01 January 2012

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