Multi-GPU acceleration of large-scale density-based topology optimization

Herrero-Pérez, David; Castejón, Pedro J. Martínez

doi:10.1016/j.advengsoft.2021.103006

Cited by 17 publications

(10 citation statements)

References 43 publications

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“…The basis of approximation reanalysis is repeating the Cholesky factorization (Liu et al. , 2014) in a series of subsequent iterations (direct solution) usually dependent on predetermined error criterion; Krylov subdomain technique (Herrero-Pérez and Martínez Castejón, 2021) for iterative solutions. Their performance is influenced by the quality that was used, i.e.…”

Section: Innovation In Optimization Phenomenonmentioning

confidence: 99%

A review on developing optimization techniques in civil engineering

Zaheer

Manzoor²,

Ahamad³

2023

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PurposeThe purpose of this article is to analyze the optimization process in depth, elaborating on the components of the entire process and the techniques used. Researchers have been drawn to the expanding trend of optimization since the turn of the century. The rate of research can be used to measure the progress and increase of this optimization procedure. This study is phenomenal to understand the optimization process and different algorithms in addition to their application by keeping in mind the current computational power that has increased the implementation for several engineering applications.Design/methodology/approachTwo-dimensional analysis has been carried out for the optimization process and its approaches to addressing optimization problems, i.e. computational power has increased the implementation. The first section focuses on a thorough examination of the optimization process, its objectives and the development of processes. Second, techniques of the optimization process have been evaluated, as well as some new ones that have emerged to overcome the above-mentioned problems.FindingsThis paper provided detailed knowledge of optimization, several approaches and their applications in civil engineering, i.e. structural, geotechnical, hydraulic, transportation and many more. This research provided tremendous emerging techniques, where the lack of exploratory studies is to be approached soon.Originality/valueOptimization processes have been studied for a very long time, in engineering, but the current computational power has increased the implementation for several engineering applications. Besides that, different techniques and their prediction modes often require high computational strength, such parameters can be mitigated with the use of different techniques to reduce computational cost and increase accuracy.

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Section: Innovation In Optimization Phenomenonmentioning

confidence: 99%

A review on developing optimization techniques in civil engineering

Zaheer

Manzoor²,

Ahamad³

2023

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“…OpenSCAD software uses the Constructive Solid Geometry (CSG) technique for solid modeling using Boolean operators to combine simpler primitives to define complex models. We need the FreeCAD software to export the CSG model to the STEP format, which can be parsed by our custom-developed software [33] for finite element analysis using distributed computing. We reduce the computational burden and memory requirements of non-linear finite element analysis using Domain Decomposition Methods (DDMs).…”

Section: Actuator Designmentioning

confidence: 99%

Soft Gripper Design and Fabrication for Underwater Grasping

Herrero-Pérez

Barberá

2022

Applied Sciences

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Underwater manipulation with current robotics technology is a challenging task with significant limits in versatility and robustness terms. Such functionality has tremendous potential covering a broad spectrum of applications, mainly replacing divers performing hazardous jobs. Soft robotics provides an efficient solution for operating in these scenarios and adapting to uncertain environmental conditions. This paper presents the design and fabrication of a simple, low-cost, and easily deployable soft gripper for underwater manipulation. We use modelling and simulation techniques for designing the soft fluidic elastomer actuators that compose the soft gripper and additive manufacturing techniques for rapid test cycles and validation. These techniques allow for a fast redesign depending on the application requirements. The proposal combines materials and fabrication techniques to take advantage of their strengths. We validate the feasibility and ability of the proposed soft gripper in a challenging underwater scenario using a subaquatic vehicle.

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“…In 2020, Aranda et al [10] introduced Toptimiz3D, a topology optimization software based on unstructured meshes which solves the compliance problem, the volume problem, compliant mechanism design and the stress constrained problem by means of the density method. Afterwards, Li et al [11] and Lin et al [12] studied topology optimization problems based on unstructured meshes using the level set approach, David Herrero-P´erez et al [13] conducted large-scale topology optimization research using Multi-GPU acceleration.…”

Section: Introductionmentioning

confidence: 99%

A parallel topology optimization framework based on unstructured 3D FEA using PETSc and Eigen

Wang,

Li,

Wang

2023

Preprint

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This paper presents a framework based on unstructured meshes for three-dimensional large-scale parallel topology optimization using PETSc and Eigen, which is easy to use and expand. The framework solves the minimum compliance problem using diagonally numbered eight-node hexahedral elements. The method of moving asymptotes (MMA) is chosen as the optimization solver. The validity of the framework is demonstrated by a classical cantilever beam problem and two more examples of wheel rim and rotator illustrate the expansibility of the framework. The code can be found from https://github.com/aiwanzhe/Unstructured-FEA-based-Topology-Optimization-in-PETSc-and-Eigen.

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Multi-GPU acceleration of large-scale density-based topology optimization

Cited by 17 publications

References 43 publications

A review on developing optimization techniques in civil engineering

A review on developing optimization techniques in civil engineering

Soft Gripper Design and Fabrication for Underwater Grasping

A parallel topology optimization framework based on unstructured 3D FEA using PETSc and Eigen

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