基于平铺刚度法的弧形加筋板的轻量化设计.

Stiffened plates are common bearing components in aerospace structure design, which can bring great economic benefits and reduce the structure weight based on the insurance of the plate performance. Therefore, the lightweight design of stiffened plate structures is a research focus in the aerospace field. Based on the concept of synchronous failure, a new type of arc rib stiffened plate was proposed to sufficiently make use of the axial bearing capacity of ribs. Then, the critical buckling load of the arc rib stiffened plate was accurately predicted based on the smeared stiffener method. The lightweight design of arc rib stiffened plates was carried out by means of the particle swarm optimization algorithm. The results show that, the arc rib stiffened plate has excellent bearing capacity, significant lightweight design effects, and promising optimization results. [ABSTRACT FROM AUTHOR]