BIDIRECTIONAL EVOLUTIONARY STRUCTURAL OPTIMIZATION FOR STRUCTURES UNDER MULTIPLE DYNAMIC LOADS

2021 ◽  
Author(s):  
Giovane Puglia ◽  
Thomas S Ribeiro ◽  
Herbert Gomes
Keyword(s):  
Structural Optimization ◽  
Dynamic Loads ◽  
Evolutionary Structural Optimization

Bidirectional Evolutionary Structural Optimization with Regional Penalty Factor

2018 ◽  
Vol 30 (12) ◽  
pp. 2224
Author(s):  
Cong Wang ◽  
Changdong Zhang ◽  
Tingting Liu ◽  
Wenhe Liao
Keyword(s):  
Structural Optimization ◽  
Evolutionary Structural Optimization ◽  
Penalty Factor

scholarly journals Improved Bi-Direction Evolutionary Structural Optimization Method and Its Application

2021 ◽  
Vol 632 ◽  
pp. 042032
Author(s):  
Jialei Zhu ◽  
Xiaodong Liang ◽  
Shuai Shao ◽  
Yongdong Bi ◽  
Runze Miao
Keyword(s):  
Structural Optimization ◽  
Optimization Method ◽  
Evolutionary Structural Optimization

A New ERR and Strategy for Bi-Directional Evolutionary Structural Optimization

2012 ◽  
Vol 204-208 ◽  
pp. 4422-4428
Author(s):  
Da Ke Zhang ◽  
Wen Pan Zhang ◽  
Han He ◽  
Chong Wang
Keyword(s):  
Structural Optimization ◽  
Stress Level ◽  
Optimization Procedure ◽  
Optimal Process ◽  
Removal Ratio ◽  
Rejection Ratio ◽  
Evolutionary Structural Optimization ◽  
Rejection Criterion ◽  
Element Addition ◽  
Element Removal

The efficiency of the element removal or addition is of significance for evolutionary structural optimization (ESO) process. The key is to find an appropriate rejection criterion (RC) which allows to assess the contribution of each element to the specified behavior（stress, stiffness, displacement, etc.）of the structure, and to subsequently remove elements with least contribution. This paper proposed a varying elements removal ratio (VERR) method which uses a larger ERR (Element Rejection Ratio) value at early iterations where exist a lot of redundant material, and decreases the value of ERR in the optimal process to lessen the number of elements removed at later iterations. Meanwhile, this paper proposed a strategy for element addition based on stress level and the contribution of elements to the structure in order to decide which elements should be added to the model and the sequence of the element addition. With the proposed VERR and the strategy, the optimization procedure of the structure evolves more quickly and smoothly.

scholarly journals Evolutionary Structural Optimization of Wind Bracing Connection Plates in Steel Structures

2020 ◽  
Vol 13 (3) ◽  
pp. 333-346
Author(s):  
Reza Kasiri ◽  
Saeid Eslamian ◽  
Theodore C. Crusberg ◽  
Kaveh Ostad-Ali-Askari ◽  
Mohsen Ghane
Keyword(s):  
Structural Optimization ◽  
Steel Structures ◽  
Evolutionary Structural Optimization
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