Asbestos has been banned in many countries as a result of its negative effects on the environment and human health. As result, human-friendly friction material is required to replace asbestos brake pads. Hence, powder metallurgy technique was undertaken develop from locally sourced asbestos-free materials. Seashell used base elements with other additives. The filler considered had particulate s...

Objective: It is believed that drivers play a crucial role in accidents. Paying attention to brake lights, a driver may find out about danger and react. Rear-end collision accidents refer to the part of the accidents due to driver inattention or slow reaction. The aim of this study was to determine the effect of dynamic flashing brake lights (7 Hz) on drivers' brake reaction time using the driv...

Brake pads are an important factor in braking, so it is necessary to study the noise and acoustic characteristics of brake using simulation method obtain sound pressure level results, determine simulation, compare results with experimental testing. The simulated composite lining material uses a composition hazelnut shell, pineapple leaf fiber, aluminum, polyurethane. Researchers used simulation...

A typical air disc brake generates the braking torque by friction between rotor and pads located on both sides of rotor. Friction causes pad to wear every time brakes are applied. As a result, gap called running clearance is created Automatic adjuster compensates for keep stable. If any malfunction occurs in automatic adjuster, will not self-adjust get larger. In this study, effect clearances p...

A method for ultrasonic measurement of friction material elastic constants was evaluated through a round-robin process. The purpose of the study was two-fold: 1) to formulate and evaluate a standard test method (SAE J2725) for measuring elastic constants using ultrasound and 2) to quantify the measurement variability when the testing method is applied by multiple operators and instrumentation. ...