earticle

영어

This study investigated the root causes of wheel hub assembly looseness and abnormal brake pad wear observed during a 32,000 km durability driving test of a military medium truck. Structural analysis and component-level durability tests were conducted to identify the failure mechanisms and evaluate improvement measures. Test conditions were established based on relevant regulations and previous studies, and braking force and braking torque equations were derived through mathematical modeling. The results showed that the spacer used to fix the brake disc in the original design did not satisfy the required safety factor greater than 1.0. Furthemore, a wheel hub assembly torque durability test under more severe conditions than the original test was performed, and the results demonstrated a significant improvement in durability perfomance.