Experimental study of the effect of brake drum cooling grooves on motorcycle braking performance

Abstract

Some important indicators in the braking system performance on a motorcycle are the braking temperature and stopping distance. High temperatures due to frictional heat in the drum brake can decrease the braking force and cause a slip. To improve braking performance, an effective strategy is needed to reduce the drum temperature and shorten the stopping distance. This study aims to analyze the effect of cooling grooves on the standard brake drum to decrease the drum brake temperature and the length of stopping distance. The measurements were compared to the standard drum brake as a reference, and two types of the modified ones to increase the braking performance by adding the slant-grooved and a straight grooved on brake drum. Braking is performed by providing a compressive load of two kg on the brake pedal for three cases of motorbike speed: 20, 40, and 60 km/hour. The results show that the brake drum with straight cooling grooves provides better braking performance compared to other drum brakes. For a speed of 60 km/h, the temperature of the straight grooved brake is 3.5 ºC. The stopping distance is 29.1 % shorter compared to the standard one. It shows that adding cooling grooves on drum brake can increase the effectiveness of motorcycle braking performance at various speeds. The results show that the brake drum with straight cooling grooves provides better braking performance compared to other drum brakes

Impact of Adjusting Brake Lining Gap and Brake Drum Temperature on Brake Efficiency of Motor Vehicles

“…Brakes are one of the components in motor vehicles that function to reduce speed in the presence of friction between the canvas and the drum so that the vehicle slows down (Dzikrullah, Qomaruddin, and Khabib, 2017). If the brake system cannot function optimally, it will cause danger and a high risk of accidents (Lapisa et al, 2022) Brake components that rub against each other must be made of materials that are not easy to wear, are heat resistant, and are not easily deformed at high temperatures (Sukandi, Prayoga, and Rasyid, 2020). With the higher ability of a vehicle to drive, the brake system's ability must be higher and more reliable in reducing speed or stopping speed.…”