a practical application of the spherical involute surface to the forged straight bevel gears is provided and demonstrated in this work. conjugate (pure involute) theoretical surfaces are developed from the input design parameters. the surfaces are modified to suit the actual application (automotive differential). the unloaded (or low load) tooth contact analysis of modified surfaces is performe...

Typical man-made locomotive devices use reversible gears, as cranks, for transforming reciprocating motion into directed one. Such gears are holo-nomic and have the transduction efficiency of unity. On the other hand, a typical gear of molecular motors is a ratchet rectifier, which is irreversible. We discuss what properties of rectifier mostly influence the transduction efficiency and show tha...

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 ...

We are presenting a digital engineering library – the Digital Mechanism and Gear Library (DMG-Lib). The existing worldwide knowledge in form of books, drawings, physical models etc. is mostly scattered, difficult to access and does not comply with today’s requirements concerning a rapid information retrieval. Therefore the development of a digital, internet-based library for mechanisms and gear...

Optimization of the volume/weight in the gear train is of great importance for industries and researchers. In this paper, using the particle swarm optimization algorithm, a general gear train is optimized. The main idea is to optimize the volume/weight of the gearbox in 3 directions. To this end, the optimization process based on the PSO algorithm occurs along the height, length, and width of t...