Formany years the transmission industry has had a major impact on the design of mechanical parts. In addition to geometric quality of the forging process, netshaped bevel gears ofer new ways to decrease cots and to increase mechanical properties. This paper deals with the dificulty in applying classical quality inspection to forged bevel gears. We developed a new approach based on entities and ...

As the main mechanical transmission parts, gears are usually exposed to wear, corrosion, and fatigue; their failure in a poor working environment may cause huge economic loss waste of resources. Laser cladding (LC) has been proven quickly repair parts at good metallurgical bonding performance flexible scanning strategies wide material selection. Therefore, LC technology can be considered an ide...

According to the theory of gearing, mathematical model a recess action (RA) worm gear with double-depth teeth has been developed in previous study. In this study, tooth undercutting aforementioned is investigated by applying surface equations and computer simulation programs. Limit curves can thus be plotted, minimum integer numbers for non-undercutting full RA, semi RA standard proportional ge...

The object of the research is a wave gear with cam generator. One requirements for gears to increase wear resistance teeth flanks. A mathematical model that makes it possible assess influence geometrical parameters on proposed in this work. To specified effect, maximum and average coefficients are introduced. calculate these coefficients, spatial used, taking into account volumetric contact def...

Search for an improved gear tooth flank shape arose from heavy industry problems rolling mills. Original involute gears suffered severe damages. So, better teeth flanks should improve contact circumstances, decrease the pressure, and enhance a lubrication film. This was achieved by curved, pole symmetric path of purely graphical methods. And developed gears, proven in applications, showed highl...

A new numerical method of solution has been developed for the analysis of deformation and stresses in elastic bodies subjected to mixed boundary-conditions. The program is capable of dealing with both regular and irregular shapes of boundaries appropriately. An ideal mathematical model, based on the displacement potential function, has been used in the finite difference solution. The present pa...

This paper deals with mathematical modelling of nonlinear vibration of large rotating shaft systems with gears and rollingelement bearings. Gearing and bearing couplings bring into the system nonlinear phenomena like impact motions due to the possibility of the mesh interruption. The motion of the system is influenced by the internal kinematic excitation in gearing and by the parametric excitat...