Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Evolutionary structural optimization for natural frequency maximization of structures with cyclic periodicity
Submission Author:
Antonio Vinicius Garcia Campos , PI
Co-Authors:
Antonio Vinicius Garcia Campos, Renato Pavanello, William Vicente
Presenter: Antonio Vinicius Garcia Campos
doi://10.26678/ABCM.COBEM2017.COB17-2901
Abstract
In this work, the Bi-directional Evolutionary Structural Optimization (BESO) method is extends to dynamic problems of circular periodic structures. The maximization of the natural frequency of a structure could be interpreted as the minimization of the dynamic compliance of the structure for a certain frequency. It can be of great importance in many fields of engineering project such as the automotive industry, aerospace, among others. A methodology is proposed to maximize the natural frequency of circular structures with cyclic periodicity. It is considered that the periodic structures have equal sectors forming the system. A sensitivity analysis is developed considering periodic dynamic problems and composite materials in the context of the BESO method. In order to show the efficiency of the proposed formulation, several cyclic systems has been investigated and different configurations of periodic cells are presented.
Keywords
Topology optimization, BESO method, natural frequency, Cyclic Periodic Structures
