Length scale control schemes for bi‐directional evolutionary structural optimization method

2021 ◽  
Author(s):  
Wenke Qiu ◽  
Shaomeng Jin ◽  
Liang Xia ◽  
Tielin Shi
Keyword(s):  
Structural Optimization ◽  
Optimization Method ◽  
Length Scale ◽  
Evolutionary Structural Optimization ◽  
Control Schemes ◽  
Scale Control ◽  
Length Scale Control

Truss Optimization Based on the Evolutionary Structural Optimization

2014 ◽  
Vol 915-916 ◽  
pp. 281-284
Author(s):  
Xing Guo Hu ◽  
He Ming Cheng
Keyword(s):  
Structural Optimization ◽  
Stress Ratio ◽  
Optimization Method ◽  
Truss Optimization ◽  
Ratio Method ◽  
Engineering Optimization ◽  
Structural Topology ◽  
Evolutionary Structural Optimization ◽  
Optimization Principle ◽  
Topology Optimization Method

The Evolutionary Structural Optimization (ESO) as an important structural topology optimization method has been widely used in many fields of engineering optimization. However, due to some technical constraints, the use of ESO for the truss optimization is relatively less. A method for truss optimization that combines the ESO method and the Stress Ratio method is proposed in this paper. This method solves the problems of ESO for truss optimization that the sectional area of bars cannot be changed and the speed of optimization cannot be easily controlled. It can be widely used in truss optimization and can get the same good result as other methods (such as GA and SA, etc.). Furthermore, the method proposed in this paper has the advantage that it can be easily programmed in the commercial software (such as Ansys and Abaqus, etc.) owing to its relatively simple optimization principle.

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