Gear transmission systems are widely used in various fields. The occurrence of gear cracks, tooth pitting, and other faults will lead to the dynamic characteristics deterioration system. In order calculate meshing stiffness faulty pairs more effectively precisely, this article improves loaded contact analysis (LTCA) method by analyzing influence different fault types on deformation, including b...

Tooth surface cracks are considered as the early stage of development tooth spalling failure. Understanding excitation mechanism has a great significance in diagnosis faults. However, there few studies on dynamic modelling cracks, and influence cracking characteristics gear system is also not yet clear during its propagation process. Thus, an analytical calculation model meshing stiffness with ...

Internal radial clearance is a key factor influencing bearing fatigue life. Moreover, bearings inevitably suffer from various wears and tears, which result in gradual increase of shorten Monitoring changes using vibration can effectively indicate the wear provide good leading time to perform maintenances. Previous studies show that at ball pass frequency on outer race (BPFO) be based for monito...

The influence of the dynamic wear model considering tooth contact flash temperature on characteristics a gear-bearing system is studied. Firstly, meshing stiffness model, based theory, established. Then, changing surface and in process gear analyzed. Next, initial calculated Archard Finally, effects wear, friction factors, damping ratio response are results show that with increase fractal dimen...

Timothy J. Baker, Philippe P. Pébay, Jérôme Pousin