首页|Fracture characteristics of asymmetric high contact ratio spur gear based on strain energy release rate
Fracture characteristics of asymmetric high contact ratio spur gear based on strain energy release rate
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NSTL
Elsevier
Variations in design parameters and methodology have a significant effect on the fracture char-acteristics of spur gear. Furthermore, the geometry and load acting on the spur gear affect the propagation of fractures and the bending fatigue life. In comparison with conventional gear design, the direct design strategy is a highly efficient method for improving fracture resistance. This study attempts to investigate the fracture properties of a direct designed asymmetric high contact ratio (AHCR-DD) spur gear subjected to the mix-mode of crack failures. The stress in-tensity factor (SIF) and the shape factor are compared to conventional normal and high contact ratio spur gears. In addition, the fracture properties of conventional design symmetric HCR (SHCR-CD), direct design symmetric HCR (SHCR-DD), and AHCR-DD spur gears are compared. When compared to other gears, the AHCR-DD spur gear has a higher fracture resistance. A parametric study of the fracture properties of the AHCR-DD spur gear is also carried out to provide useful information for designing such gears. Variations in the contact ratio, rim thickness, number of teeth, and addendum pressure angle are used to assess fracture performance. It is observed that using a direct design technique significantly reduces the SIF. This investigative study provides valuable guidelines in the future for developing non-standard spur gears such as AHCR-DD.
Strain energy release rateStress intensity factorDirect designHigh contact ratio spur gearShape factorCRACK-PROPAGATIONFATIGUE-CRACKTOOTHSIMULATIONDESIGNCAPACITYDRIVESLIFE
NSTL
Elsevier
