A resultant mechanical model for the forming process of cone boss;

By analyzing cone bosses forming mechanism in different bulk formations,the forming process of cone bosses was divided into two characteristic time-intervals based on modular design method,one being extrusion processing,and the other being the process of the die corner overflowed by deformable body.

As a rapid calculation of radioactive shield attenuation in truncated cone, the cross points penetrated through the truncated right angle cone shielded region from source points to the detector point have been studied via numerical analysis.

Stressing influences such as the train longitudinal force and lateral force (that is temperature load) on shear cam are taken into account and calculation formulas of shear cam force caused by these factors are deduced.