英文标题
DYNAMIC TOLOGICAL OPTIMAL DESIGN OF THREE-DIMENSIONAL CONTINUUM STRUCTURES
英文摘要
The purpose of present work is to study structural optimal design of dynamics for three-dimensional (3D) continuum structures,and aim at constructing topological optimal formulation by using ICM method,which is considering weight as object function and fundamental eigenfrequency as constraints.An explicit expression of frequency-constraint(s) with respect to topological variables is obtained based on Rayleigh’s quotient and first-order Taylor expansion.And two types of model with filter functions including power function and exponential function and are standardized.As a result,the topology optimization problem is solved by the dual quadratic programming..Finally,several numerical examples applying different filter functions in the optimal model are analyzed and discussed to demonstrate the feasibility and efficiency of the proposed method.
翻译关键词
topology optimization
ICM method
frequencies constraint
three-dimensional continuum structure
