Topological control for 2D minimum compliance topology optimization using SIMP method

2022 ◽  
Vol 65 (1) ◽  
Author(s):  
Qianglong Wang ◽  
Haitao Han ◽  
Chong Wang ◽  
Zhenyu Liu
Keyword(s):  
Topology Optimization ◽  
Simp Method ◽  
Minimum Compliance

Topology Optimization of Electric Vehicle Body in White Based on SIMP Method

2011 ◽  
Vol 308-310 ◽  
pp. 606-609 ◽  
Author(s):  
Shu Yang ◽  
Chang Qi ◽  
Ping Hu ◽  
Zhi Yong Wei ◽  
Ying Li Wang
Keyword(s):  
Topology Optimization ◽  
Geometric Constraints ◽  
Vehicle Body ◽  
Numerical Instability ◽  
Static Loads ◽  
Simp Method ◽  
Proposed Model ◽  
Body In White ◽  
Braking Process ◽  
Moment Load

Based on Solid Isotropic Microstructure with Penalization (SIMP) method, a mathematical model for topology optimization of EV is proposed, which has design objective as minimizing compliance, with volumetric and geometric constraints. To make results more engineering value, the BIW optimization of EV takes into account not only the static loads, but also the torsion load in turning and moment load in braking process of EV. A number of implementation aspects in solving the numerical instability problem generated in optimization process are discussed, including checkboard patterns and mesh-dependency. Topology optimization of EV body in white with geometry and volumetric constraints is conducted, showing effectiveness of the proposed model.

An Improved Alternating Active-Phase Algorithm for Multi-Material Topology Optimization Problems

2014 ◽  
Vol 635-637 ◽  
pp. 105-111 ◽  
Author(s):  
Ming Tao Cui ◽  
Hong Fang Chen
Keyword(s):  
Topology Optimization ◽  
Optimization Problems ◽  
Active Phase ◽  
Optimality Criteria ◽  
Numerical Examples ◽  
Original Algorithm ◽  
Minimum Compliance ◽  
Object Based ◽  
The Mathematical Model ◽  
Improved Algorithm

For the multi-material topology optimization problems which take structural minimum compliance as the object, based on the weight function and optimality criteria, an improvement to the original alternating active-phase algorithm is achieved in establishing and calculating the mathematical model of multi-material topology optimization problems. Simulations of numerical examples are implemented respectively by the improved alternating active-phase algorithm and the original algorithm. It can be found that the minimum compliance obtained by the improved algorithm is generally lower than that obtained by the original algorithm in each numerical example, whereupon the feasibility and efficiency of the improved algorithm are manifested.

Topology Optimization Using the SIMP Method for Multiobjective Conductive Problems

2012 ◽  
Vol 61 (6) ◽  
pp. 439-470 ◽  
Author(s):  
Gilles Marck ◽  
Maroun Nemer ◽  
Jean-Luc Harion ◽  
Serge Russeil ◽  
Daniel Bougeard
Keyword(s):  
Topology Optimization ◽  
Simp Method

Topology Optimization for Work Flat of Tower-Belt under Multi-Loading Cases

2012 ◽  
Vol 197 ◽  
pp. 614-618
Author(s):  
Yi Xian Du ◽  
Jin Run Hu ◽  
Zi Fan Fang ◽  
Qi Hua Tian
Keyword(s):  
Topology Optimization ◽  
Static Analysis ◽  
Geometric Model ◽  
Mathematical Optimization ◽  
Structural Models ◽  
Optimal Topology ◽  
Multiple Objective ◽  
Objective Functions ◽  
Minimum Compliance ◽  
Mathematical Optimization Model

Taking minimum compliance of the whole structure as the objective, the mathematical optimization model of multi-loading cases topology optimization is constructed by using the weight compromise programming method to coordinate the multiple objective functions. The optimal topology of the work flat is obtained using Hyperworks/Optistruct software and geometric model is reconstructed. The static analysis of original and reconstructed structural models of the work flat show that the optimized structure can not only decrease the weight, but also improve the stiffness and reduce the stress. The work flat will be more safe and reliable than before.

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