Die-Rolled Noncircular Gears : Part 1, on Elliptic Gears of Aluminium

Study on the generalized mathematical model of noncircular gears

978 - 0 - 521 - 76170 - 3 - Noncircular Gears : Design and Generation

Designers have tried for many years to apply noncircular gears in automatic machines and instruments. The obstacle was the lack of effective methods of generation of noncircular gears similar to those applied for the generation of circular gears. However, researchers have continued the investigation of application of noncircular gears – see the earlier works by Burmester (Burmester, 1888), Golb...

Optimal Shapes for Gears

| Gear theory is reexamined and we nd optimal shapes for gears. As optimality criteria, we allow: (1) minimal frictional losses (highest eeciency) assuming linear law of friction or (2) uniform maximum stress (it will wear out slowly and last the longest) assuming Hertzian contacts or (3) uniform maximal temperature, assuming we are in a high power limit in which all heat is removed by the lubr...

Condition Indicators for Gears

Diagnostics of faults in gears requires development of reliable condition indicators. A large number of condition indicators, which are based on statistical moments of the synchronous average and its derivatives (difference and residual signals) were previously suggested. This study evaluates the efficiency of different gear condition indicators that are based on statistical moments and compare...

On the synthesis of spatial cycloidal gears

The subject of this paper is the synthesis of spatial cycloidal gears, based on Disteli’s work, which was published at the turn of the 20th century. In particular, the properties of the Plücker conoid or the cylindroid for the relative motion between a pair of skew gears are analyzed in order to extend Camus’ Theorem from the planar and spherical cases to the spatial case with the aim of synthe...