Method for optimizing layering sequence of composite material pressure vessel

The invention belongs to the technical field of composite material pressure vessel simulation, and relates to a composite material pressure vessel layering sequence optimization method. Comprising the following steps: determining a design variable according to a design target of a to-be-optimized composite material pressure vessel; the design targets comprise the lining size and the working pressure of the composite material pressure vessel, and the design variables comprise the fiber winding angle, the winding layer thickness and the winding layer number; establishing a finite element model according to the layering information and boundary conditions of the composite material pressure vessel to be optimized, wherein the layering information is the design variable; the lining of the pressure vessel is modeled by adopting an entity unit, and the composite material layer of the pressure vessel is modeled by adopting a continuous shell unit; obtaining a required optimization target according to the established