An explicit optimization model for integrated layout design of planar multi-component systems using moving morphable bars

2018 ◽  
Vol 342 ◽  
pp. 46-70 ◽  
Author(s):  
Xuan Wang ◽  
Kai Long ◽  
Van-Nam Hoang ◽  
Ping Hu
Keyword(s):  
Optimization Model ◽  
Layout Design ◽  
Component Systems ◽  
Integrated Layout Design

Assignment and layout integration optimization for simplified satellite re-entry module component layout

2017 ◽  
Vol 233 (12) ◽  
pp. 4287-4301 ◽  
Author(s):  
Zhi-Zheng Xu ◽  
Chong-Quan Zhong ◽  
Hong-Fei Teng
Keyword(s):  
Evolutionary Algorithm ◽  
Optimization Model ◽  
Optimization Problem ◽  
Optimization Method ◽  
Layout Design ◽  
Layout Optimization ◽  
Optimization Process ◽  
Supporting Surface ◽  
Computational Performance ◽  
Component Layout

Previous studies of satellite module component (equipment) layout optimization usually initialized a component assignment in the initialization stage, which kept constant in following optimization process. The invariable component assignment will restrict the further improvement in layout optimization. To overcome this deficiency, an assignment and layout integration optimization method is presented for multi-module or supporting surface satellite module component layout design. The assignment and layout integration optimization model and the component reassignment model are built. The component reassignment model is solved by algorithms with new heuristic rule, and the integration optimization model itself is solved by evolutionary algorithm. The purpose of this article is to improve the computational performance of algorithms for multi-module or supporting surface satellite module component layout optimization. The proposed method is applied to a simplified satellite re-entry module component layout optimization problem to illustrate its effectiveness.

Some Recent Advances in the Integrated Layout Design of Multicomponent Systems

2011 ◽  
Vol 133 (10) ◽  
Author(s):  
Weihong Zhang ◽  
Liang Xia ◽  
Jihong Zhu ◽  
Qiao Zhang
Keyword(s):  
Volume Fraction ◽  
Polynomial Interpolation ◽  
Circle Method ◽  
Layout Design ◽  
Local Optimum ◽  
Multicomponent Systems ◽  
Structure Topology ◽  
Detail Design ◽  
Gradient Based ◽  
Integrated Layout Design

We provide an introduction and state of the art overview of integrated layout design of multicomponent systems. We review several packing optimization and overlap detection strategies, some tree-based methods, such as octrees and spheretrees, and a finite circle method (FCM) proposed to favor gradient-based optimization algorithms. Integrated layout design techniques for simultaneous packing and structure topology optimization of multicomponent systems are reviewed; two typical approaches for system stiffness maximization are reviewed and compared in detail. Design of multicomponent systems under inertia forces is presented using polynomial interpolation models; constraints to the centroid position, moment of inertia, and volume fraction are included. Applications to piezoelectric multi-actuated microtools and integrated layout design of bridge systems are presented. Finally, the effectiveness of the FCM, applications to 3D problems, and local optimum phenomena are discussed.

Layout Design of Naval Gun Magazine Based on Improved GA

2009 ◽  
Vol 419-420 ◽  
pp. 669-672
Author(s):  
Wei Fu ◽  
Sheng Hai Hu ◽  
Yang Ge
Keyword(s):  
Genetic Algorithm ◽  
Optimization Model ◽  
System Reliability ◽  
Layout Design ◽  
Mutation Operator ◽  
Improved Genetic Algorithm ◽  
Encoding Scheme ◽  
Performance Constraints ◽  
Naval Gun ◽  
Polygon Method

In this paper a magazine layout optimization model with performance constraints is described and the objective function and its constraints of magazine layout are established. A multiobjective optimizations layout model based on polygon method is put forward. The model deals with a series of constraints such as geometry constraints, in-and-out point position optimization, magazine capacity and system reliability and safety. An improved genetic algorithm (GA) is proposed in this paper based on the new encoding scheme and logical mutation operator. The algorithm solved the problem of multiobjective layout design with performance constraints.

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