Numerical Investigation into Spindle System Stiffness of High-Speed Grinder
This study was focused on the theoretical modeling and numerical investigation about the dynamic and static stiffness of spindle system of high speed grinder. The moment balance and the transition matrix, the state vector, field matrix of spindle system of high speed grinder were analyzed and deduced. The theoretical models about dynamic and static stiffness were established using the transfer matrix method. The numerical results showed that increas of the preload could result in the improvement of static stiffness of spindle end within the range of its working speed; the reduction of front overhang length would improve the stiffness of spindle end, as well as the dynamic stiffness of spindle at the working speed; the stiffness of spindle end decreased with the increase of speed with different bearing spans within the range of working speed of spindle.
Feng Zhu, Xipeng Xu and Renke Kang
C. H. Li et al., "Numerical Investigation into Spindle System Stiffness of High-Speed Grinder", Key Engineering Materials, Vol. 487, pp. 490-494, 2011