Investigation of Structural Design Optimization of Loaded Cable-Supported Pipe Systems Using Response Surface Method

IF 1.1 Q3 ENGINEERING, CIVIL

Journal of the International Association for Shell and Spatial Structures Pub Date : 2022-01-01 DOI:10.20898/j.iass.2022.002

M. Agwoko, Chen Zhi Hua, Liu Hong Bo

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引用次数: 0

Abstract

A Cable-supported pipe system (CSPS) is a composite system of structure involving truss modules and cable to support a pipeline over a large space. The structure is crucial in the transportation of fluid. This paper proposes structural design optimization method using response surface method (RSM) and investigates the results of Multi-Objective Genetic Algorithm and Screening design optimization of the structure. The RSM is implemented using deterministic inputs of the verified experimental results with the aid of genetic aggregation response surface in ANSYS Design Exploration platform. The results of performance response of the loaded CSPS structure considering the uncertainty of the design parameters, including the cross-sectional area of the cable truss, and pipe members were subsequently mined. This revealed that the cable sections and truss modules can effectively and efficiently improve the performance of the structure. The outcome also shows that performance the structure is robust. A set of “Pareto optimum solutions' ' were thus obtained based on the constraints of the design optimization, the yield stress of material properties and limit displacement of the structure. The results illustrate that the proposed optimization method provides a set of Pareto optimum solutions and guide for the robust design of the structure.

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基于响应面法的荷载索支管道系统结构优化设计研究

索支管道系统(CSPS)是一种包括桁架模块和索的组合结构系统，用于在大空间上支撑管道。结构在流体的输送中起着至关重要的作用。提出了基于响应面法(RSM)的结构设计优化方法，并对多目标遗传算法和结构筛选设计优化结果进行了研究。在ANSYS Design Exploration平台中，利用验证实验结果的确定性输入，借助于遗传聚集响应面实现RSM。考虑设计参数(包括索桁架截面积和管构件)的不确定性，计算了受载CSPS结构的性能响应结果。这表明索段和桁架模块可以有效地提高结构的性能。结果还表明，该结构具有良好的鲁棒性。基于设计优化、材料性能屈服应力和结构极限位移的约束，得到了一组“Pareto最优解”。结果表明，所提出的优化方法为结构的鲁棒性设计提供了一组Pareto最优解。

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

Journal of the International Association for Shell and Spatial Structures ENGINEERING, CIVIL-

CiteScore

1.40

自引率

0.00%

发文量

期刊介绍： The Association publishes an international journal, the Journal of the IASS, four times yearly, in print (ISSN 1028-365X) and on-line (ISSN 1996-9015). The months of publication are March, June, September and December. Occasional extra electronic-only issues are included in the on-line version. From this page you can access one or more issues -- a sample issue if you are not logged into the members-only portion of the site, or the current issue and several back issues if you are logged in as a member. For any issue that you can view, you can download articles as .pdf files.