Xuesong Jin

TL;DR: In this paper, an adhesion test under the conditions of different wheel/rail contacts, such as various speeds, axle-loads, contamination situation, was carried out, where the rollers of the test rig were excited with hydraulic system in the test.

TL;DR: In this article, a finite element code ANSYS/LS-DYNA is used to simulate the wheel/rail contact-impact behavior at rail joint region, and the implicit and explicit finite element methods have been couple to analyze wheel and rail impact process.

TL;DR: In this article, a detailed investigation conducted into the mechanism of the polygonal wear of metro train wheels through extensive experiments conducted at the sites is presented, including model tests of a vehicle and its parts and the tracks, the dynamic behaviour test of the vehicle in operation and the observation test of polygonale wear development of the wheels.

TL;DR: In this article, the effect of rail corrugation with different depths and wavelengths on the dynamical behavior of a passenger car and a curved track is investigated, and the evolution of initial corrugations with different wavelengths is investigated.

TL;DR: The characteristics, effects, causes, and solutions of wheel polygonisation in metro vehicles, locomotives, and high-speed trains in China are summarized and guidance is provided on further understanding the formation mechanisms, monitoring technology, and maintenance criterion of wheel Polygonisation.