New Topology Optimization Method for Wing Leading-Edge Ribs

Abstract

For searching the stiffness structure under the constraints of givenmaterial volume fraction, the subset simulationbased topology optimization method is established on the combination of the advanced sensitivity filtering technique with the subset simulation, an efficient reliability analysis method. The subset simulation-based topology optimization is convergent, checkerboard free, and mesh independent. After one example is used to testify these advantages of the establishedmethod, the optimal design of the leading-edge rib of an aircraft wing is searched by the subset simulation-based topology optimizationmethod, and the results demonstrate that the establishedmethod is an effective and rational tool for the topology optimization of the continuum structure.