Journal ArticleDOI
A feature-driven robust topology optimization strategy considering movable non-design domain and complex uncertainty
Zeshang Li,Lei Wang,Zhenxian Luo +2 more
TLDR
Wang et al. as mentioned in this paper proposed a feature-driven robust topology optimization strategy considering movable non-design domain and complex uncertainty, and the sensitivity of the robust optimization model is derived based on the shape derivative principle, which provides the basis for the implementation of gradient based optimization algorithm.About:
This article is published in Computer Methods in Applied Mechanics and Engineering.The article was published on 2022-11-01. It has received 17 citations till now. The article focuses on the topics: Topology optimization & Discontinuity (linguistics).read more
Citations
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Journal ArticleDOI
A level set driven concurrent reliability-based topology optimization (LS-CRBTO) strategy considering hybrid uncertainty inputs and damage defects updating
Zeshang Li,Lei Wang,Tangqi Lv +2 more
TL;DR: In this paper , the influence of multi-source hybrid uncertainties and defect damage in the design process and propose a concurrent reliability-based topology optimization design method based on the collocation method.
Journal ArticleDOI
Additive Manufacturing-Oriented Concurrent Robust Topology Optimization Considering Size Control
Zeshang Li,Lei Wang,Tangqi Lv +2 more
TL;DR: In this paper , a concurrent robust topology optimization method considering manufacturing factors and hybrid uncertainties is proposed, where the minimum size is controlled based on the boundary gradient under the level set frame and the influence of random defects on the mechanical property is analyzed via the homogenization method.
Journal ArticleDOI
Bonobo optimizer algorithm for optimum design of truss structures with static constraints
TL;DR: In this paper , a very recently developed intelligent algorithm called Bonobo Optimizer (BO) algorithm is implemented for the sizing optimization of the truss structures with discrete and continuous variables.
Journal ArticleDOI
Multiobjective-clustering-based Optimal Heterogeneous Sensor Placement Method for Thermo-mechanical Load Identification
TL;DR: In this article , an optimal heterogeneous sensor placement framework for multi-case mechanical load identification is proposed, based on the modal superposition theory, for static and dynamic cases, in which the optimization objective integrates the global performance and local evaluation of interested modal loads.
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A robust-based configuration design method of piezoelectric materials for mechanical load identification considering structural vibration suppression
TL;DR: In this article , a robust-based configuration design method for piezoelectric materials under the assumption of identical configurations for actuator and sensor layers is investigated, in which the desired structural vibration suppression can be achieved and the robustness of system performance index representing actuating energies may be guaranteed once uncertainties are involved.
References
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Journal ArticleDOI
Generating optimal topologies in structural design using a homogenization method
Martin P. Bendsøe,Noboru Kikuchi +1 more
TL;DR: In this article, the authors present a methodology for optimal shape design based on homogenization, which is related to modern production techniques and consists of computing the optimal distribution in space of an anisotropic material that is constructed by introducing an infimum of periodically distributed small holes in a given homogeneous, i.i.
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A simple evolutionary procedure for structural optimization
Yi Min Xie,Grant P. Steven +1 more
TL;DR: In this paper, a simple evolutionary procedure is proposed for shape and layout optimization of structures, where low stressed material is progressively eliminated from the structure during the evolution process, and various examples are presented to illustrate the optimum structural shapes and layouts achieved by this procedure.
Journal ArticleDOI
Topology Optimization in Aircraft and Aerospace Structures Design
TL;DR: In this article, a survey of recent advances of topology optimization techniques applied in aircraft and aerospace structures design is presented, including standard material layout for airframe structures, layout design of stiffener ribs for aircraft panels, multi-component layout design for aerospace structural systems, and multi-fasteners design for assembled aircraft structures.
Journal ArticleDOI
Level set methods for optimization problems involving geometry and constraints I. Frequencies of a two-density inhomogeneous drum
Stanley Osher,Fadil Santosa +1 more
TL;DR: This paper uses the level set method, the variational level set calculus, and the projected gradient method to construct a simple numerical approach for problems of this type involving a vibrating system whose resonant frequency or whose spectral gap is to be optimized subject to constraints on geometry.
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Computational methods in optimization considering uncertainties – An overview
TL;DR: In this article, the authors present a brief survey on some of the most relevant developments in the field of optimization under uncertainty, including reliability-based optimization, robust design optimization and model updating.
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