增材制造柔性机翼模型分析

IF 3.4 4区 工程技术 Q1 ENGINEERING, MECHANICAL
Rossana Fernandes, Benyang Hu, Zhichao Wang, Zheng Zhang, Ali Y. Tamijani
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引用次数: 0

摘要

目的探讨增材制造风洞模型的可行性。利用增材制造模型验证了一个计算框架,该框架允许对五种机翼模型的性能进行评估。设计/方法/方法对优化后的战斗机机翼进行了增材制造和低速风洞试验,得到了机翼在不同速度和迎角下的气动系数和挠度。采用优化后的曲线梁肋柔性机翼模型对有限元框架进行了验证,并对五种机翼模型的气动弹性性能进行了研究。作为一种计算效率高的优化方法,本研究采用基于均质化的拓扑优化方法生成了四种不同的机翼点阵内部结构。对比了基于样条优化的肋梁模型和基于格点优化的其他四种机翼的效率。结果实验和计算得到的气动载荷和气动位移符合较好,证明了增材制造可以用于制造复杂的精确模型。研究还表明了基于均质化的拓扑优化框架在生成具有优越刚度的设计中的效率。据作者所知,这是第一次将具有曲线梁和肋骨的机翼模型作为单个部件进行增材制造并在风洞中进行测试。该研究还证明了基于同质化的拓扑优化在生成不同复杂度的增强模型方面的效率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Analysis of additively manufactured flexible wing model
Purpose This paper aims to assess the feasibility of additively manufactured wind tunnel models. The additively manufactured model was used to validate a computational framework allowing the evaluation of the performance of five wing models. Design/methodology/approach An optimized fighter wing was additively manufactured and tested in a low-speed wind tunnel to obtain the aerodynamic coefficients and deflections at different speeds and angles of attack. The flexible wing model with optimized curvilinear spars and ribs was used to validate a finite element framework that was used to study the aeroelastic performance of five wing models. As a computationally efficient optimization method, homogenization-based topology optimization was used to generate four different lattice internal structures for the wing in this study. The efficiency of the spline-based optimization used for the spar-rib model and the lattice-based optimization used for the other four wings were compared. Findings The aerodynamic loads and displacements obtained experimentally and computationally were in good agreement, proving that additive manufacture can be used to create complex accurate models. The study also shows the efficiency of the homogenization-based topology optimization framework in generating designs with superior stiffness. Originality/value To the best of the authors’ knowledge, this is the first time a wing model with curvilinear spars and ribs was additively manufactured as a single piece and tested in a wind tunnel. This research also demonstrates the efficiency of homogenization-based topology optimization in generating enhanced models of different complexity.
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来源期刊
Rapid Prototyping Journal
Rapid Prototyping Journal 工程技术-材料科学:综合
CiteScore
8.30
自引率
10.30%
发文量
137
审稿时长
4.6 months
期刊介绍: Rapid Prototyping Journal concentrates on development in a manufacturing environment but covers applications in other areas, such as medicine and construction. All papers published in this field are scattered over a wide range of international publications, none of which actually specializes in this particular discipline, this journal is a vital resource for anyone involved in additive manufacturing. It draws together important refereed papers on all aspects of AM from distinguished sources all over the world, to give a truly international perspective on this dynamic and exciting area. -Benchmarking – certification and qualification in AM- Mass customisation in AM- Design for AM- Materials aspects- Reviews of processes/applications- CAD and other software aspects- Enhancement of existing processes- Integration with design process- Management implications- New AM processes- Novel applications of AM parts- AM for tooling- Medical applications- Reverse engineering in relation to AM- Additive & Subtractive hybrid manufacturing- Industrialisation
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