SHEN Xiu-li, QI Xiao-dong, WANG Rong-qiao, et al. Research on the dentiform basic parameters of aero-engine turbine joint structure[J]. 2011, 26(4).DOI:
The impacts on joint structure strength of the dentiform basic parameters
such as wedge angle
blade root neck width
disc groove height
top flank angle
bottom flank angle and skew angle
were studied by lots of finite element and optimization design numerical methods.Based on the calculated results
a new model was established and verified experimentally
indicating that the maximum stress has been reduced.Results show that two-dimensional finite element analysis can be used to study the influence of dentiform basic parameters on the joint structure stress distribution
but this does not reflect changes of the stress in the axial direction.