In this paper, the influence of rolling parameters on generation wear particles is studied experimentally using a pilot scale mill. Further, multi-scale model proposed to predict amount generated in cold processes operating under boundary lubrication. Rolling experiments revealed that thickness reduction and roll roughness are two dominant process control processes. Analysis size distribution s...

Gear wear is a common fault that occurs in gear transmission system degrades the operating efficiency and may cause other catastrophic failures such as tooth breakage fatigue. The progressive of helical its influences on vibration responses are rarely investigated due to combined effects complicated lubrication state time-varying characteristic. To fill this gap, numerical study was put forward...

Hot ring rolling is a highly nonlinear, unsteady-state and asymmetry process which is affected by many parameters. The friction coefficient between the ring ,the driver roll and the idle roll is one of the problems, which has significant effect on the quality of final product. In this study, the effect of these two parameters on hot ring rolling was investigated based on a 3D coupled-thermo mec...

Abstract This paper proposes an active monitoring strategy to control aircraft trailing-edge high-lift devices (flaps) asymmetry. A variety of system failures can cause asymmetry in the surfaces, including transmission torsion bar break down and surface actuator wear tear. The authors’ novel approach detects identifies flaps position Once failure side has been identified, activates wingtip brak...

We report on the manufacture of a first batch of approximately 2,000 Gas Electron Multipliers (GEMs) using 3M’s fully automated roll to roll flexible circuit production line. This process allows low-cost, reproducible fabrication of a high volume of GEMs of dimensions up to 30×30 cm. First tests indicate that the resulting GEMs have optimal properties as radiation detectors. Production techniqu...

in this paper, the effects of roll center height of mcpherson suspension mechanism on dynamic behaviour of a vehicle is studied first and then the optimum location of roll center of this suspension system is determined for a conceptual class a vehicle. adams/car software was used for analysis of vehicle dynamic behaviour in different positions of suspension roll center, then optimization proces...