A Study of different physical shape of motorcycle brake disc effecting on braking performance
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Date
2020-03-04Author
Suwantaroj, Kullayot
กุลยศ สุวันทโรจน์
Lakkam, Supachai
ศุภชัย หลักคำ
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Nowadays, a disc brake is one of important auto parts for motorbike cycle industry which effected directly to life safety. As the result, this project aims to test the performance of the disc brake in order to study the physical disc brake that effects to braking distance and to be an alternative for testing the brake disc. Therefore, the braking performance tester was designed and created in the single dynamometer which was not over 9.70•kgm2 as the moments of inertia of motorcycles. Regarding JASO T204:2001, this test was focused on the 3 different types of brake discs (i.e. normal type, grooving type, and perforated type). The tested
temperature was at normal state of the brake disc temperature (60°C - 80 °C) and at high state (more than 100 °C). The braking force from 9.81N to 34.33N at master cylinder was tested. The result revealed that at normal temperature, the braking performance of the three disc brakes (normal type, grooving type, and perforated type) was at 7.29, 9.10 และ 9.50 m/sec2 per 1m2 of contact surface areas respectively. However, the brake performance at high temperature was at 7.21, 9.03 และ 9.46 m/sec2 per 1m2 of contact surface areas respectively. This result reveals that the most efficient disc brake at normal temperature was perforated type of disc brake which was 30.32% different from normal type of disc brake. Likewise; the perforated type of disc brake was the most performance disc brake at high temperature which was different from normal type of disc brake at 31.21%
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