Structural and Multidisciplinary Optimization

Beam features of variable cross-sections are developed in this paper for topology optimization based on feature-driven method. As beam structures are extensively used and mostly hold standard cross-sections in engineering practice, this work is ...

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 fluid. The algorithm considers a ...

This paper introduces a new hybrid friction energy-absorbing structures (HFEAS), which is consisting of a bearing bush, an anti-creeper device, a pretension bolt, a friction plate, and friction metal/CFRP tubes have been designed in the paper. The ...

The mesoscopic pores of double-porosity media are usually designed to enhance the pressure diffusion effect to improve sound absorption. In this paper, a topology optimization model with a parametric level set method for double-porosity structures ...

The application of Topology Optimisation (TO) to help in the manufacture of metallic components in highly technological industries has increased recently. To equally benefit from TO, the construction industry must address its specific issues, such ...

This paper presents a non-uniform curved grid-stiffened shell design method aiming to enhance structural performance using various stiffener patterns, allowing simultaneous optimization of stiffener thickness and stiffener layout. Firstly, the ...

This paper presents a shape optimization for the three-dimensional cooling channel with high Reynolds number flow and strong convection heat transfer based on isogeometric analysis (IGA). Meanwhile, the applicability conditions of Darcy’s ...

The automotive S-rail plays a crucial role in frontal car crashes, aiming to absorb impact energy and reduce passenger injury. This paper innovatively presents an optimization approach to determine the optimal configuration of an S-rail featuring ...

This paper proposes a novel improved prairie dog optimization algorithm integrated with a convergence curve monitoring frame (M-IPDO) for truss optimization. Three measures are used to improve the prairie dog optimization (PDO): Firstly, the ...

The high-speed railway (HSR) in China has entered the stage of large-scale operation, and there is an urgent need for the intelligent and refined management of track structures. However, due to operating requirements and railroad clearance of HSR, ...

An efficient, robust, and versatile optimization method (DSM-MCC-HA) is proposed for transcendental eigenvalue problems by combing the advantages of the dynamic stiffness method (DSM), mode count constraint (MCC), and heuristic algorithm (HA). The ...

Simultaneous topology and build orientation optimization approaches aim to reduce the cost of additive manufacturing components by minimizing or eliminating overhanging surfaces and support structure volume. However, current methods do not ...

To achieve lightweight of automobile body side structure, a body optimization framework is established. The optimization framework includes numerical simulation, wall thickness, and material set parameterization, design of experiment, surrogate ...

When solving the physical-control collaborative optimization problem, referred to as control co-design (CCD) problem, in dynamic system, it is inevitable to encounter the simulation model with computationally expensive state equation, leading to ...

This paper investigates the topology optimization design of viscoelastic planar shell structures to minimize the random vibration intensity under non-stationary random excitation. The excitation is is modeled as uniformly modulated evolutionary ...

In this study, an efficient algorithm for non-probabilistic reliability-based design optimization (NRBDO) is presented. To improve the convergence rate, the sequential Kriging model is applied to the inner-layer optimization of the double-nested ...${\mathrm{}}^{\mathrm{}}$

The Blended-Wing-Body (BWB) layout represents an innovative subsonic transport aircraft design. Drawing inspiration from the Pultruded Rod Stitched Efficient Unitized Structure (PRSEUS) proposed by National Aeronautics and Space Administration (...

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 a neural network surrogate model for ...

Traditional structural design involves drawing recognition, repeated modeling, parameter tuning, and numerous mechanical analyses by skilled designers, which is time-consuming and inefficient. To address those problems, a two-stage automatic ...

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 diminish the carbon footprint of the ...