The forming process of stainless steel pot-lid die is analyzed, and the procedures are determined to use one pair of compound die to perform blanking material, positive drawing of shallow globe-shaped and negative drawing of low taper, piercing and trimming.

Dynamic analysis of transversely isotropic shallow spherical shells of Winkler foundation subjected to impact force;

Based on the nonlinear theory of shallow shells and the elastic contact mechanics, a set of nonlinear equations of motion for transversely isotropic shallow spherical shells subjected to a central concentrated load are established.

The influences of damage and damage evolution on the nonlinear dynamic response and dynamic buckling for thin shallow spherical shells with circular hole are investigated.

Combined with the engineering example, the article analyzes and calculates the finite element space internal force of the internal condition under the internal water pressure of the tank wall of the round shallow tank constructed with the complete joints.

Firstly using the experiment data of underwater circular shoal to test the model,then the model was applied to predict steady wind waves and "9711" typhoon waves in the Rudong sea area in Jiangsu Province.