355 Result(s)
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Open AccessMulti-material and thickness optimization of a wind turbine blade root section
Structural optimization has been shown to be an invaluable tool for solving large-scale challenging design problems, and this work concerns such optimization of a state-of-the-art laminated composite wind turb...
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Open AccessMesh-based topology, shape and sizing optimization of ribbed plates
In this paper, we present a new parameterization and optimization procedure for minimizing the weight of ribbed plates. The primary goal is to reduce embodied CO2 in concrete floors as part of the effort to dimin...
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Open AccessStress-constrained optimization of multiscale structures with parameterized microarchitectures using machine learning
A multiscale topology optimization framework for stress-constrained design is presented. Spatially varying microstructures are distributed in the macroscale where their material properties are estimated using ...
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Open AccessTopology optimization of incompressible structures subject to fluid–structure interaction
In this work, an algorithm for topology optimization of incompressible structures is proposed, in both small and finite strain assumptions and in which the loads come from the interaction with a surrounding fl...
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Open AccessMulti-objective branch-and-bound for the design-for-control of water distribution networks with global bounds
This study investigates a design-for-control (DfC) problem formulation for the joint minimization of pressure-induced leakage, maximization of resilience, and minimization of cost in water distribution network...
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Open AccessLightworks, a scientific research framework for the design of stiffened composite-panel structures using gradient-based optimization
Efficient structural optimization remains integral in advancing lightweight structures, particularly concerning the mitigation of environmental impact in air transportation systems. Varying levels of detail pr...
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Open AccessTopology optimization of broadband acoustic transition section: a comparison between deterministic and stochastic approaches
This paper focuses on the topology optimization of a broadband acoustic transition section that connects two cylindrical waveguides with different radii. The primary objective is to design a transition section...
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Open AccessIsogeometric topology optimization of structures using the overweight approach
In this paper, a 2D isogeometric formulation of the material distribution for structural topology optimization considering minimum weight and local stress constraints using the overweight approach is proposed....
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Open AccessDesign of metamaterial-based heat manipulators using isogeometric level-set topology optimization
We exploit level-set topology optimization to find the optimal material distribution for metamaterial-based heat manipulators. The level-set function, geometry, and solution field are parameterized using the N...
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Open AccessTransient topology optimization for efficient design of actively cooled microvascular materials
Microvascular materials containing internal microchannels are able to achieve multi-functionality by flowing different fluids through vasculature. Active cooling is one application to protect structural compon...
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Open AccessInverse design of periodic microstructures with targeted nonlinear mechanical behaviour
This paper introduces an inverse design framework for the precise tailoring of desired nonlinear mechanical responses in periodic microstructures, with particular focus on prescribed nonlinear stress–strain re...
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Open AccessRobust contact-constrained topology optimization considering uncertainty at the contact support
In this paper, the general framework for contact-constrained topology optimization of Strömberg and Klarbring (2010) is extended to robust topology optimization. In doing so, a linear elastic design domain is con...
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Open AccessTopography optimisation using a reduced-dimensional model for transient conjugate heat transfer between fluid channels and solid plates with volumetric heat source
Consideration of transient effects is important for industrial applications of heat transfer structure optimisation studies; however, the huge computational cost associated with transient problems is a pressin...
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Open AccessA novel multi-fidelity cokriging model assisted by multiple non-hierarchical low-fidelity datasets
Multi-fidelity (MF) surrogate models for incorporating multiple non-hierarchical low-fidelity (LF) datasets, whose rank of fidelity level is unknown, have attracted much attention in engineering problems. Howe...
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Open AccessParametric generation of optimal structures through discrete exponential functions: unveiling connections between structural optimality and discrete isothermicity
This study discusses an equilibrium state of structures endowed with integrability and relates the structural optimality for Michell’s classic problem and the isothermicity in discrete differential geometry. T...
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Open AccessOne-shot procedures for efficient minimum compliance topology optimization
In this paper, a one-shot approach for minimum compliance topology optimization is investigated. In the convex case of variable thickness sheet optimization, an optimality criteria scheme with a single step of...
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Open AccessA simple QP modification of the OC update to permit treatment of the topology design problem of self-weight
This note communicates a simple modification of the optimality criteria (OC) design update—as found in well-known Matlab implementations of the classical topology design problem—to an update based on a quadrat...
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Open AccessTowards advanced piezoelectric metamaterial design via combined topology and shape optimization
Metamaterials open up a spectrum of artificially engineered properties otherwise unreachable in conventional bulk materials. For electromechanical energy conversion systems, lightweight materials with high hyd...
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Open AccessTopology and orientation optimization of multi-material hinge-free composite compliant mechanisms under multiple design-dependent loadings
Compliant mechanisms with multiple input loads and output ports are commonly applied in micro-electromechanical systems (MEMS), while compliant mechanisms under design-dependent pressure loadings (such as pneu...
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Open AccessTopology optimization of multi-material active structures to reduce energy consumption and carbon footprint
A multi-material active structure is a mechanical system made of passive and active materials with the ability to alter its configuration, form, or properties in response to changes in the environment. Active ...
