Given the boundary condition of four point supporting or multi point supporting, it is structurally transformable and not workable.

The simulation of axial distortion of four-fulcrum thrust ball bearing pack of turbodrill;

Analysis of vibration performance of single-layered cylindrical lattice shells reducted-system supported at four sides;

This paper analyses several factors influencing loading properties of glass monolayer plate, such as connection manners,connection shapes,describes problems of concentrated stress of hole s edge of point support glass in glass buildings,especially the influence of concentrated stress of hole s edge and distance from center .

Effection of support point on grinding quality of outer raceway of double row angular contact ball bearing;