This study examined, evaluated, and displayed in three dimensions the effect of zirconium addition on the wear resistance of commercially aluminum at different loads, speeds, and times using a pin-on-disc machine. After ...

Engine cams experience the Hertz contact wear during their service, progressively altering the surface integrity aspects of roughness, hardness and residual stress, impacting the remaining life. While the fullness coefficient ...

This study investigates the effect of reinforcing a copper matrix with 8 wt% Fe and different graphite contents (2, 6, and 12 wt%) using powder metallurgy. Powders were mechanically milled, compacted, and sintered at 1000 ...

Nonlinear structural systems subjected to stochastic excitation exhibit complex probabilistic responses that cannot be predicted using deterministic formulations. Such behavior becomes particularly significant in graded ...

Functionally graded materials (FGM) have gained significant attention in recent years due to their enhanced mechanical and thermal characteristics compared to their homogeneous counterparts. Several plate theories have ...

To address the lack of quantitative analysis in the assembly process of basic components for wind turbine yaw systems, which leads to large assembly angle errors and low assembly accuracy, we propose a dynamic adjustment ...

Flywheel bearings, as core rotating components, require accurate serviceability assessment to ensure system reliability. Conventional fault monitoring often suffers high false alarm rates due to the volatility and data ...

Contact angle is determined by ball diameters, raceway curvatures and raceway diameters to affect the dynamic stiffness of ball bearings. How to combine ball diameters, raceway curvatures and raceway diameters to attain ...

Pulsatile extracorporeal membrane oxygenation (p-ECMO) reduces left ventricular afterload through counter-pulsation (CP), but stable CP requires accurate cardiac-phase detection and rapid adaptation to heart-rate changes. ...

In this work, to address safety concerns in densely populated urban areas, a human-in-loop deep deterministic policy gradient (HIL-DDPG) model is developed for collisionaware path planning in GPS-directed autonomous drones. ...