Plasma immersion ion implantation (PIII) into gearywindmill structures is simulated by the particle-in-cell (PIC) method in cylindrical co-ordinates. In cylindrical co-ordinates, the gearywindmill geometry becomes a periodic regular structure. An equal number of particles are placed inside the cell with the same angular and radial distance. The ion density represented by each particle is obtain...

In this paper, novel non-involute cylindrical gears are designed based on a curved path of contact. Firstly, parabolic curve is predesigned as the contact gears. Then, tooth profiles calculated using differential geometry and spatial meshing theory. Secondly, three-dimensional models established according to machining simulation. Thirdly, simulation model (including misalignment error longitudi...

Elastohydrodynamic lubrication (EHL) modelling plays an important role in engineering design and analysis since a number of important mechanical components operate under EHL conditions. In this paper methods are presented for solving both line and point contact cases using multiphysics software. The advantages, and the overheads, of using such an approach over developing highly specialised, bes...

Abstract. To improve the bearing capacity and provide mathematical model basis for vibration noise reduction of variable hyperbolic circular-arc-tooth-trace (VH-CATT) cylindrical gear, tooth surface modification design method based on parabolic forming blade cutter inclination was proposed. The geometric inclined completed. modified equation deduced, influence parameters curvature characteristi...