Morphogenesis of free-form surface structures based on geometrically nonlinear isogeometric analysis

被引：0
|
作者：
Yang, Feifei [1 ]
Yu, Tiantang [1 ]
Hirshikesh [2 ]
Bui, Tinh Quoc [3 ,4 ]
机构：
[1] Hohai Univ, Dept Engn Mech, Nanjing 211100, Peoples R China
[2] Indian Inst Technol Jodhpur, Dept Mech Engn, Jodhpur 342037, India
[3] Duy Tan Univ, Duy Tan Res Inst Computat Engn DTRICE, 6 Tran Nhat Duat,Dist 1, Ho Chi Minh City 700000, Vietnam
[4] Duy Tan Univ, Fac Civil Engn, Da Nang 550000, Vietnam
来源：
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS | 2024年 / 164卷
基金：
中国国家自然科学基金;
关键词：
Shell structure; Free-form surfaces; Geometric nonlinearity; Isogeometric analysis; Particle swarm optimization; Shape optimization; NURBS; FRAME ROOF STRUCTURES; SHAPE OPTIMIZATION; TOPOLOGY OPTIMIZATION; CONVERGENCE ANALYSIS; GENETIC ALGORITHM; SHELL; DESIGN; SENSITIVITY; NURBS;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Free -form surface structures have taken the forefront in space structure research owing to their free and flexible expressiveness and aesthetic visual effects. Yet, their irregular shapes and large span of the initial structure often lead to the problem of large displacement, necessitating the incorporation of geometric nonlinearity in the analysis. In this paper, we employ structural optimization design principles to investigate the morphogenesis of free -form surface structures while considering their geometric nonlinearity. Particularly, we explore both single -objective and double -objective shape optimization of free -form surface structures by employing structural strain energy and the first natural frequency as optimization indexes and the vertical coordinates of control points as optimization variables. The effectiveness of the proposed method is finally verified by several examples.
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页数：12
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