Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
Topology Optimization of Structures Subjected to Dynamic Loads Using Equivalent Static Loads
Submission Author:
Barbara Valeria de Abreu Lavor , RJ , Brazil
Co-Authors:
Barbara Valeria de Abreu Lavor, Anderson Pereira
Presenter: Barbara Valeria de Abreu Lavor
doi://10.26678/ABCM.COBEM2019.COB2019-2306
Abstract
Topology optimization in the time domain of structures subjected to time-dependent loads is usually computationally expensive, starting with the large number of time-dependent analyses that are required. Furthermore, the computational cost to evaluate the gradients of the response is significantly high and requires a large storage space. In this paper, instead of solving the original problem directly, we solve a sequence of static response optimization problems with many load cases. This approach, called the Equivalent Static Loads Method (ESLM), generates static loads that produces a similar response in comparison to the same response that the dynamic analysis does. The optimization of two cantilever beam models under dynamic forces is presented as a validation of the ESL implementation.
Keywords
structural optimization, equivalent static loads, multiple loading condition, Topology optimization
