Ömer Bayraktar

Temperature–Load‐Dependent Wear Transitions of PH 15–5 Stainless Steel Under Dry Sliding

The dry sliding behavior of PH 15–5 precipitation‐hardened stainless steel was investigated at room temperature and −40 °C under 10 and 20 N using reciprocating ball‐on‐disc tests. A 6 mm WC–Co ball was used at 34 mm s −1 for 30 min, corresponding to 61.2 m sliding distance. Fric...

Modeling of a dual-axis tilt-rotor mechanism for a high-performance quadrotor

Purpose This study aims to investigate the flight stability, control robustness and trajectory tracking performance of a quadrotor unmanned aerial vehicle (UAV) equipped with a dual-axis tilt-rotor mechanism, and compares its performance against conventional quadrotor designs. De...