The slant conical shell of fixed tube-sheet reboiler is simplified for stress analysis with finite element method.

Based on the equivalence of tension and bending stiffness,the tube bundle in the fixed tube- sheet kettle-type re-boiler with slant conical shell was considered as an equivalent cylinder.

With the aid of software ANSYS, the 3D FEA (Finite Element Analysis) model of kettle-type reboiler with fixed-tubesheet and slant conical shell is constructed.

One of the shells is the diagonal square pyramid reticulated shallow shell, whose its upper and lower faces bear most of the load but its core is comparatively flexible.

Through the analysis of material layout and lofting process for conical shell,the relevant equations were derived.

Natural frequencies and damping ratios of a conical shell with honeycomb construction are identified by modal experiment.

This paper is concerned with the free vibration analysis of conical shell on the two-parameter elastic foundation.

Before the experiments to the transient responses of conical shells under impulsive loading, the effect of many factors on the experimental results should be considered, while the pulse shape on the conical shells is one of the important factors.