Calculation of the inherent characteristics and optimal design of the cone-column composite shell structure

Abstract

To quickly calculate and optimally design the inherent characteristics of cone-column composite shell structures, the transfer matrix derivation process of cylindrical and conical shell structures based on the Donnell shell model is simplified by the improved state vector method. The transfer relationship of the cone-column composite shell structure is established under force and displacement matching conditions, and the inherent vibration characteristics of it can be calculated. The calculation results are in good agreement with the finite element method. The cone-column composite shell structure is calculated. In addition, the optimization design method of the cone-column composite shell structure based on the genetic algorithm is adopted, which lays a theoretical and methodological foundation for more complex dynamic analysis and optimization design of composite shell structures. Practice shows that the introduction of improved state vector and transformater matrix can simplify the vibration calculetion transfer matrix derivatior process of cylindrical shell and conical shell.