Topology optimization of trusses with local stability constraints and multiple loading conditions?a heuristic approach

Smith, Ole P Pereira Da Silva

doi:10.1007/bf01199235

Cited by 12 publications

(2 citation statements)

References 9 publications

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“…Meanwhile, applications-focused research flourished, with optimisation early works being published in materials design [45], compliant mechanisms [46,47], electronics [48], connections positioning and design [49], buckling phenomena and truss design [50,51] [52], and alternative approaches for the ribbed plate problem [53].…”

Section: Topology Optimisation Modern Agementioning

confidence: 99%

Topology Optimisation in Structural Steel Design for Additive Manufacturing

2021

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Topology Optimisation is a broad concept deemed to encapsulate different processes for computationally determining structural materials optimal layouts. Among such techniques, Discrete Optimisation has a consistent record in Civil and Structural Engineering. In contrast, the Optimisation of Continua recently emerged as a critical asset for fostering the employment of Additive Manufacturing, as one can observe in several other industrial fields. With the purpose of filling the need for a systematic review both on the Topology Optimisation recent applications in structural steel design and on its emerging advances that can be brought from other industrial fields, this article critically analyses scientific publications from the year 2015 to 2020. Over six hundred documents, including Research, Review and Conference articles, added to Research Projects and Patents, attained from different sources were found significant after eligibility verifications and therefore, herein depicted. The discussion focused on Topology Optimisation recent approaches, methods, and fields of application and deepened the analysis of structural steel design and design for Additive Manufacturing. Significant findings can be found in summarising the state-of-the-art in profuse tables, identifying the recent developments and research trends, as well as discussing the path for disseminating Topology Optimisation in steel construction.

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Section: Topology Optimisation Modern Agementioning

confidence: 99%

Topology Optimisation in Structural Steel Design for Additive Manufacturing

2021

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“…Qin et al [15] utilized the expert evaluation method to acquire the grey interval of the operating condition weight coefficient, and then calculated the exact value of the grey interval of the operating condition weight coefficient by combining the grey theory. Other researchers [16][17][18] combined the weight coefficients by orthogonal table, and analyzed the test results by the range analysis method to obtain the optimal weight ratio coefficient. The above methods for calculating weights acquire original information from an objective environment, and there is no subjective judgment of researchers.…”

Section: Introductionmentioning

confidence: 99%

Multi-Objective Topological Optimization of an Electric Truck Frame Based on Orthogonal Design and Analytic Hierarchy Process

Qiao¹,

Xu²,

Wu³

et al. 2020

IEEE Access

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The electric truck frame as a vital load-bearing component has aroused growing attentions due to its enormous potential in lightweight. However, few systematic studies have been performed on the multi-objective topological design of the frame attributable to its complexity on loading and conflicting objectives. This paper aims to develop a multi-objective topology optimization strategy of the electric truck frame based on the hybrid decision making method combining orthogonal test design (OTD) and analytic hierarchy process (AHP). The hybrid strategy is performed to obtain a new set of weight ratio combination from objective data and subjective judgment. The topological results show that the overall performance of the optimal frame is better than any of the methods applied alone. By comparing, it is found that the strength and stiffness of the optimal frame is higher than that of the original frame from the perspective of static conditions, and the low-order natural frequency of the optimal frame is significantly improved. It demonstrates that the proposed approach could be as an effective tool for multi-objective topology optimization of the electric truck frame in seeking lightweight and comprehensive mechanical performance. The hybrid strategy might be expected to provide some guidance for more complicated engineering problems. INDEX TERMS Electric truck frame, multi-objective design, topology optimization, orthogonal test, analytic hierarchy process.

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2014

Computational Design of Lightweight Structures

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Topology optimization of trusses with local stability constraints and multiple loading conditions?a heuristic approach

Cited by 12 publications

References 9 publications

Topology Optimisation in Structural Steel Design for Additive Manufacturing

Topology Optimisation in Structural Steel Design for Additive Manufacturing

Multi-Objective Topological Optimization of an Electric Truck Frame Based on Orthogonal Design and Analytic Hierarchy Process

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