Search Results

This paper presents for the first time an adaptive immersed approach for level-set topology optimization using higher-order truncated hierarchical B-spline discretizations for design and state variable fields. Boundaries and interfaces are ...

The new generation of aerospace equipment necessitates advanced design for complex load-bearing environments, which is challenging for traditional structural forms. Consequently, this paper introduces a hierarchical topology optimization method ...

The derivatives of functions of eigenvectors arise in numerous applications, including in the design of structural and thermal systems. The adjoint method can be used to compute these derivatives provided the eigenvalues are distinct. However, the ...

Joint injuries, and their long-term consequences, present a substantial global health burden. Wearable prophylactic braces are an attractive potential solution to reduce the incidence of joint injuries by limiting joint movements that are related to ...

• Rapid and automated method for the mechanical characterization of vascular stents.
• Stents assumed as hollow cylinders made of anisotropic homogenized material.
• Analytical formulations relating stent's mechanical response to ...

Vascular stents are scaffolding structures implanted in the vessels of patients with obstructive disease. Stents are typically designed as cylindrical lattice structures characterized by the periodic repetition of unit ...

• A new effective thermostress coefficient equation using energy-based homogenization.
• A novel topology optimization design of negative thermal expansion metamaterials.
• Part of original matlab codes of this paper is disclosed for ...

Since the existing topology designs of negative thermal expansion metamaterials are primarily based on the asymptotic homogenization theory, this paper conducts a topology optimization method of negative thermal expansion metamaterials based on ...

• FreeTO is an open-source code for 3D topology optimization and post-processing in Matlab.
• FreeTO is compatible with several popular Matlab codes for topology optimization.
• FreeTO employs SEMDOT and SIMP and performs better with the ...

Topology optimization has revolutionized the design of structures for various applications, particularly with the advancement of additive manufacturing. However, existing open-source codes for topology optimization have limitations, such as ...

• A novel multi-regional topology optimization method for structures is proposed.
• The design domain is pre-divided into multiple material field functions.
• Correlation lengths in material fields achieve a customized topological ...

Due to its exceptional mechanical properties, large-scale topology optimization with arbitrary design domains has become an attractive mission and facilitated the application of topology optimization methods in practical engineering applications. ...

This research develops a new topology optimization scheme for controlling the trajectory of particles considering contacts between particles and structure. Existing density-based topology optimization schemes struggle with accounting for particle-...

This paper presents a novel numerical framework for designing solid oxide fuel cell (SOFC) channel layouts using the topology optimization (TO) method. The proposed design approach combines a 2D optimization problem with a fully coupled 3D ...

Well-chosen cellular microstructures can be used to efficiently design multi-scale structures that offer strong mechanical performance and are easy to fabricate via additive manufacturing. In this paper, we consider a special class of cellular ...

This paper proposes a density-based topology optimization method for the three-dimensional design of fluid diodes considering wall-connected structures based on the fictitious physical modeling approach. The optimum design problem of fluid diodes ...

This paper presents an innovative MMC-based microstructure topology optimization framework designed to maximize the sound absorption performance of underwater anechoic layers. A semi-numerical solution, named the Homogenization and Transfer Matrix ...

In this work, we develop an approach for the level set based topology optimization of millable 3D structures. We focus on the 3-axis machining with realistic formed milling tools. The basis of the method lies in the identification of surface areas ...

A design optimization method applicable to both rarefied and continuum gas flows with good efficiency is proposed in the framework of gas-kinetic theory. The method follows the methodology of topology optimization where the areas of gas and solid ...

Cooling plate design is one of the key issues for the heat dissipation of lithium battery packs in electric vehicles by liquid cooling technology. To minimize both the volumetrically average temperature of the battery pack and the energy ...

Neural networks have recently been employed as material discretizations within adjoint optimization frameworks for inverse problems and topology optimization. While advantageous regularization effects and better optima have been found for some ...

This paper proposes a method for topology optimization of link mechanisms with multiple outputs, using a multi-material micropolar elasticity model. This approach allows for comprehensive optimization of both the arrangement and structure of the ...

In this paper, we introduce a density-based topology optimization framework to design porous electrodes for maximum energy storage. We simulate the full cell with a model that incorporates electronic potential, ionic potential, and electrolyte ...

Heat pumping through thermoelectric devices has many advantages over traditional cooling. However, their current efficiency is a limiting factor in their implementation. In this paper, we approach the non-convex topology optimization of ...${}_{}{}_{}{}_{}\mathrm{}$