A combination of instrumented wheelset measurements and numerical simulations axle bending stresses is used to investigate the consequences evolving rolling contact fatigue (RCF) damage on a passenger train wheelset. In field test campaign, have been monitored using with four strain gauges mounted axle, while evolution wheel tread (out-of-roundness) has measured regular occasions. The signals a...

car body acceleration is an important factor affecting track safety and ride comfort, which are two primary aspects of railway systems. though track level is an important source of wagon body acceleration, no quantitative relation between them is available and the aim of this paper is to propose a method to address this issue. to do so, car body acceleration is determined using a 10 dof simulat...

Abstract The faster and heavier trains in modern railway traffic are getting popularity the public transportation authorities of many countries. Such cause higher stresses excessive deformations ballasted track substructure under train dynamic loadings, which raises risk damage derailment. It is thus essential to investigate impact different influencing factors on response track–ground systems....

Abstract Continuous welded rail (CWR) track has great advantages of low-cost maintenance, environmental influence, and ride comfort. However, the CWR is subjected to longitudinal stresses in rails due temperature influence as well inhomogeneous stress accumulation train loadings. The cause accelerated lateral irregularity that without timely maintenance can buckling. present paper a method stab...

Stress magnitude and distribution of both conventional polyethylene versus a crosslinked polyethylene in the liner of a total hip replacement (THR) were examined using finite element analysis and pressure sensitive film. Both types of polyethylene were assessed against head sizes of 22 and 28 mm with 5-mm thick polyethylene liners and head sizes of 28, 38, and 46 mm with 3-mm thick polyethylene...

The article considers the main disadvantages of existing method examining lashes a jointless path, in which pedestrian bypass sections canvas and their visual control is performed. A system for monitoring temperature stresses rail laid path proposed, allows longitudinal displacement track throughout entire life cycle: from moment rails are welded into long-length lashes, including laying, furth...