Turnouts are the weak spot in high-speed rail systems, and it is simple for phenomenon of wheel–rail force carbody lateral acceleration over-limit to arise when train passes through, which affects service life running stability train. In this paper, turnout with selected analysis, profiles wheel monitored. Then, vehicle–turnout coupled multi-body dynamics model simulated. Additionally, portable...

In the grinding process, friction energy generated by grains and workpiece in zone will affect service life of wheel. Ultrasonic-vibration-assisted (UVAG) can reduce force generation during grinding. this work, wear mechanism wheels UVAG is discussed detail from perspective grain trajectory tribology. The results show that has a smaller than conventional (CG). Furthermore, when initial included...

Rail corrugation is a common railway defect that involves diverse and complex factors. grinding also the most commonly used method to address corrugations. Through numerous irregularity tests one-third octave frequency spectrum analyses, this study determined characteristics development process for rail on high-speed tracks. The vibration transmission properties of train were tested using force...

The applicationof electroplated diamond in ultrasonic vibration-assisted grinding can be a candidate to replace the manual mirror finishing of stainless-steel surface and ability characterize tool work surfaces is important for understanding tool-work interaction during process. In this study, an on stainless steel using performed diagnostic. experiment used constant machining parameters, leavi...

The grinding force is a key parameter in the grinding process, which is closely associated with the grinding mechanism of engineering ceramics, microstructure and properties of ceramic materials, and the selection of grinding parameters. Meanwhile, it is also a key indicator to assess the grindability of a material. The grinding force is a crucial parameter to reflect the grinding process, whic...