-
Article
Deep learning-driven topology optimization for heat dissipation of integrated electrical components using dual temperature gradient learning and MMC method
Highly integrated electrical components produce intensive heat while in use, which will seriously impact their performance if not properly designed. In this study, an end-to-end heat dissipation structure topo...
-
Article
A cascadic multilevel optimization framework for the concurrent design of the fiber-reinforced composite structure through the NURBS surface
This paper proposes a novel cascadic multilevel optimization framework for the fiber-reinforced composite structure, inspired by the character of the non-uniform rational basis spline (NURBS) surface, to contr...
-
Article
Structural topology optimization considering both manufacturability and manufacturing uncertainties
This work proposes a robust and efficient approach to structural topology optimization considering both manufacturable connectivity and manufacturing uncertainties. It can be seen as an extension of the three-...
-
Article
Optimal design of laminated plate for minimizing frequency response based on discrete material model and mode reduction method
This paper builds an integrated optimization model for the laminated plate to suppress the structural frequency response in a given frequency band, where the objective is to minimize the dynamic compliance of ...
-
Article
Stress-based topology optimization of continuum structures for the elastic contact problems with friction
Structural problems have various nonlinearities in the real world and these nonlinearities should be accommodated in structural topology optimization. This work proposes a topology optimization method for mini...
-
Article
Controlling the maximum stress in structural stiffness topology optimization of geometrical and material nonlinear structures
Structural topology optimization for nonlinear structures and stress-based design problems have been well developed and extensively studied. However, topology optimization of Simultaneous Geometrical and Mater...
-
Article
A new method for concurrent multi-scale design optimization of fiber-reinforced composite frames with fundamental frequency constraints
This paper proposes an efficient methodology for concurrent multi-scale design optimization of composite frames considering specific design constraints to obtain the minimum structure cost when the fundamental...
-
Article
A multi-scale discrete material optimization model for optimization of structural topology and material orientations to minimize dynamic compliance
For fiber-reinforced composites, the combination of structural topology optimization and fiber angle design is an excellent way to suppress structural vibration more efficiently and acquire a lighter structure...
-
Article
Structural topology optimization considering both performance and manufacturability: strength, stiffness, and connectivity
Structural topology optimization considering both performance and manufacturability is very attractive in engineering applications. This work proposes a formulation for structural topology optimization to achi...
-
Article
Clustering-based multiscale topology optimization of thermo-elastic lattice structures
A multiscale clustering-based topology optimization for thermo-elastic lattice structures is studied based on the extended multiscale finite element method (EMsFEM). The strain energy of thermo-elastic lattice...
-
Article
Reliability-based multi-scale design optimization of composite frames considering structural compliance and manufacturing constraints
The paper proposes an efficient methodology for concurrent reliability-based multi-scale design optimization (RBMDO) of composite frames to minimize structural cost subjecting to compliance constraint. Two typ...
-
Article
Determination of sample size for input variables in RBDO through bi-objective confidence-based design optimization under input model uncertainty
Reliability analysis accounting for only randomness of input variables often shows a significant error due to the lack of knowledge and insufficient data in the real world. Confidence of reliability indicates ...
-
Article
Discrete material selection and structural topology optimization of composite frames for maximum fundamental frequency with manufacturing constraints
This paper proposes a methodology for simultaneous optimization of composite frame topology and its material design considering specific manufacturing constraints for the maximum fundamental frequency with a b...
-
Article
A two-step optimization scheme based on equivalent stiffness parameters for forcing convexity of fiber winding angle in composite frames
For stiffness design optimization of composite frame structures, one of the major problems when using fiber winding angles as design variables directly is the lack of convexity of the objective function, which...
-
Article
Integrated design optimization of composite frames and materials for maximum fundamental frequency with continuous fiber winding angles
Fiber reinforced composite frame structure is an ideal lightweight and large-span structure in the fields of aerospace, satellite and wind turbine. Natural fundamental frequency is one of key indicators in the...
-
Article
Concurrent multi-scale design optimization of composite frames with manufacturing constraints
This paper presents a gradient based concurrent multi-scale design optimization method for composite frames considering specific manufacturing constraints raised from the aerospace industrial requirements. Geo...
-
Article
Concurrent multi-scale design optimization of composite frame structures using the Heaviside penalization of discrete material model
This paper deals with the concurrent multi-scale optimization design of frame structure composed of glass or carbon fiber reinforced polymer laminates. In the composite frame structure, the fiber winding angle...
-
Article
Integrated optimization of the material and structure of composites based on the Heaviside penalization of discrete material model
Based on discrete material optimization and topology optimization technologies, this paper discusses the problem of integrated optimization design of the material and structure of fiber-reinforced composites b...
