This paper presents the state-of-the-art technologies and development trends of wind
turbine drivetrains–the system that converts kinetic energy of the wind to electrical energy–in …

Gear transmissions have always been a subject of study for many different reasons which
change due to the constant evolution of technology. Consequently, new topics must be …

The main purpose of condition monitoring in gear systems is to facilitate condition-based
maintenance (CBM) by detecting the degradation of components, eg gear teeth, before the …

As an important part of reducers, herringbone planetary gear train (HPGT) has the
advantages of small size, small mass, large transmission ratio, compact structure and strong …

The misalignment and lead crown relief make the tooth partial contact along the tooth width
direction, which greatly affects the mesh characteristics. In this paper, a mesh stiffness model …

For the simulation of the tooth contact of helical gears, a precise determination of the length
of the line of contact is required, which is variable throughout the meshing cycle. This …

A gear is the key component of a high-efficiency mechanical transmission. Gear modification
can effectively improve the dynamic characteristics of the gear transmission system and …

The meshing stiffness, load sharing ratio, and quasi-static transmission error of spur gear
pairs are related to each other and are dependent on tooth geometry. In addition, profile …

Spline couplings are commonly applied in transmission systems for their high torque
capability and efficiency. However, misalignment between the splines can lead to clearance …

Based on the thin slice assumption, a revised time-varying mesh stiffness (TVMS) model of
spur gear pairs with tooth modifications is developed. The spur gear is divided into many …