Parametric optimization of anisogrid shells of irregular structure

Abstract

The paper focuses on an approach to solving the problem of parametric optimization of anisogrid mesh shells with an irregular structure. Mesh structures are widely used in building and engineering. This study deals with the optimal design of such structures used in aerospace industry. The problem of optimal design of mesh structures is relevant, as it makes it possible to increase the efficiency of their use, minimizing the weight, provided the strength and stability conditions are met. In our work we formulate the problem of optimal design of mesh structures in general form, and introduce an optimization algorithm based on the simplex search method in which we use a partial predicate of a feasible region to describe the non-convex smooth areas of boundaries. The results of solving the optimization problem for a particular structure with a violation of the regularity of the rib structure are given. Findings of research show that the considered algorithm can be used for optimal design of both regular and non-regular mesh structures.

Design of a structurally optimized bioinspired structural arrangement of carbon composite fuselage of unmanned aerial vehicle based on parametric modeling

“…These anisogrid structures have been successfully used in rocket technology for a long time, and now they are beginning to be mastered in aircraft construction. Algorithms for calculating and optimizing the finned structure of irregular [12] and regular [13] configurations are being developed. The number, shape, geometric parameters of elements are determined.…”