scholarly journals Fatigue Topology Optimization Design Based on Distortion Energy Theory and Independent Continuous Mapping Method

2021 ◽  
Vol 128 (1) ◽  
pp. 297-314
Author(s):  
Hongling Ye ◽  
Zonghan Li ◽  
Nan Wei ◽  
Pengfei Su ◽  
Yunkang Sui
Keyword(s):  
Topology Optimization ◽  
Optimization Design ◽  
Continuous Mapping ◽  
Mapping Method ◽  
Distortion Energy ◽  
Energy Theory

Application of the Structural Topological Optimization in the Column Stability Design

2010 ◽  
Vol 37-38 ◽  
pp. 190-193
Author(s):  
Bing Chuan Bian ◽  
Guan Ming Peng ◽  
Yun Kang Sui
Keyword(s):  
Topology Optimization ◽  
Objective Function ◽  
Optimization Model ◽  
Continuous Mapping ◽  
Rayleigh Quotient ◽  
Mapping Method ◽  
Topological Optimization ◽  
Topological Structures ◽  
Topology Optimization Problem ◽  
Dual Programming

In this paper, according to the ICM (Independent Continuous Mapping) method, the topology optimization problem of continuum structures is solved. The topology optimization model for the continuum structure is constructed, which minimized weight as the objective function and was subjected to the buckling constraints. Based on the Taylor expansion, the filtering function and the Rayleigh quotient, the objective function and the buckling constraint are approximately expressed as the explicit function. The optimization model is translated into a dual programming and solved by the sequence second-order programming. Finally, the compressed bar examples are presented. They verified the length coefficient which is converted into stability bar hinged at both ends, identified the location of bottlenecks in topological structures. According to the results, more reasonable topological structures were given.

Structural Topology Optimization with Dynamic Response Based on Independent Continuous Mapping Method

2013 ◽  
Vol 765-767 ◽  
pp. 1658-1661
Author(s):  
Hong Ling Ye ◽  
Yao Ming Li ◽  
Yan Ming Zhang ◽  
Yun Kang Sui
Keyword(s):  
Topology Optimization ◽  
Optimization Problem ◽  
Continuous Mapping ◽  
Harmonic Excitation ◽  
Mapping Method ◽  
Multiple Response ◽  
Structural Topology Optimization ◽  
Structural Topology ◽  
Topology Optimization Problem ◽  
Dual Sequence

This paper refer to weight as objective and subject to multiple response amplitude of the harmonic excitation. The ICM method is employed for solving the topology optimization problem and dual sequence quadratic programming (DSQP) is effective to solve the algorithm. A numerical example was presented and demonstrated the validity and effectiveness of the ICM method.

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