Semi-analytical dynamic modeling and analysis of cylindrical shell structures with arbitrary variable path curve stiffeners

The semi-analytical dynamic modeling method of cylindrical shell with arbitrary variable path curved stiffeners (CS-AVPCS) is studied in this study. Specifically, the arbitrary variable path curve stiffener is described by curve fitting technique or self-setting function. According to the functions of curve stiffeners, its mechanical properties are equivalent to the shell surface at the junction of the stiffener and the skin, so as to realize the introduction of the mechanical properties of the curve stiffener. Furthermore, the semi-analytical dynamic model of CS-AVPCS is established, the calculation efficiency is compared and its rationality is verified. The influence of parameters is analyzed.