The progressive ply interpolation model for the optimization design of double-double laminates with gradual thickness tapering

IF 4.4 2区工程技术 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

Computers & Structures Pub Date : 2025-04-26 DOI:10.1016/j.compstruc.2025.107790

Pingchu Fang, Tong Gao, Shanyue Gao, Yongbin Huang, Weihong Zhang

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引用次数: 0

Abstract

Double–double laminates can offer a lightweight design that is easy to taper by varying the number of repeated sub-plies. In this work, an innovative gradual thickness tapering optimization design method for DD laminates has been proposed, enabling the ply-drop design of DD laminates. Specifically, the progressive ply interpolation model has been put forward, simultaneously taking into account the current element thickness and the element thickness within the local search area. This method can effectively prevent the occurrence of empty sub-plies and the simultaneous change of multiple sub-plies in the DD laminate structure, and can also control the taper size. Finally, through three examples, including the aircraft wing in an engineering project, the influencing factors of the optimization results are discussed. It is demonstrated that this method has great potential in enabling the DD laminate structure to achieve a higher stiffness-to-mass ratio.

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厚度逐渐变细的双层层合板优化设计的逐级厚度插值模型

双层层压板可以提供一种轻量级的设计，通过改变重复子层的数量，很容易逐渐变细。本文提出了一种创新的DD层压板厚度渐变优化设计方法，实现了DD层压板的铺层设计。具体而言，提出了同时考虑当前单元厚度和局部搜索区域内单元厚度的递进层插值模型。该方法可有效防止DD层压板结构中出现空子层和多子层同时变化的现象，并可控制锥度尺寸。最后，以某工程项目中的飞机机翼为例，讨论了影响优化结果的因素。结果表明，该方法在使DD层压结构获得更高的刚度质量比方面具有很大的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Computers & Structures 工程技术-工程：土木

CiteScore

8.80

自引率

6.40%

发文量

122

审稿时长

33 days

期刊介绍： Computers & Structures publishes advances in the development and use of computational methods for the solution of problems in engineering and the sciences. The range of appropriate contributions is wide, and includes papers on establishing appropriate mathematical models and their numerical solution in all areas of mechanics. The journal also includes articles that present a substantial review of a field in the topics of the journal.