基于平铺刚度法的弧形加筋板的轻量化设计

刘宸宇; 骆烜赫; 刘康翔; 孟增; 肖山

doi:10.21656/1000-0887.430342

基于平铺刚度法的弧形加筋板的轻量化设计

doi: 10.21656/1000-0887.430342

刘宸宇^1,,
骆烜赫¹,
刘康翔¹,
孟增^1, ,,
肖山²

1.
合肥工业大学土木与水利工程学院，合肥 230009
2.
中国航空工业集团有限公司沈阳飞机设计研究所，沈阳 110034

基金项目:

国家自然科学基金(面上项目) 11972143

详细信息

作者简介:
刘宸宇(2001—)，男(E-mail: 2019210816@mail.hfut.edu.cn)

通讯作者:
孟增(1987—)，男，副教授，博士，博士生导师(通讯作者. E-mail: mengz@mail.dlut.edu.cn)

中图分类号: TB114.3;O213.2
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- 文章访问数: 336
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- PDF下载量: 57
- 被引次数: 0
出版历程
- 收稿日期: 2022-10-28
- 修回日期: 2022-12-08
- 刊出日期: 2023-08-01

Lightweight Design of Arc Rib Stiffened Plates Based on the Smeared Stiffener Method

1.
College of Civil Engineering, Hefei University of Technology, Hefei 230009, P.R.China
2.
Shenyang Aircraft Design and Research Institute, Aviation Industry Corporation of China, Ltd., Shenyang 110034, P.R.China

摘要

摘要: 加筋板结构是航空航天结构设计中常见的承载部件，可以在保证加筋板性能的基础上减轻其结构质量，能够带来巨大的实际效益. 因此，加筋板结构的轻量化设计一直是航空航天领域的研究重点. 基于同步失效的概念，设计了一种新型的弧形加筋板，旨在充分利用加筋肋的轴向承载能力. 同时，基于平铺刚度法，准确预测了弧形加筋板的临界屈曲载荷. 最后采用粒子群优化算法对弧形加筋板进行了轻量化设计. 算例结果表明，弧型加筋板承载能力优异，轻量化设计效果显著，具有良好的优化效果.
- 弧形加筋板 /
- 平铺刚度法 /
- 临界屈曲荷载 /
- 轻量化
Abstract: Stiffened plates are common bearing components in aerospace structure design, which can bring great economic benefits and reduce the structure weight based on the insurance of the plate performance. Therefore, the lightweight design of stiffened plate structures is a research focus in the aerospace field. Based on the concept of synchronous failure, a new type of arc rib stiffened plate was proposed to sufficiently make use of the axial bearing capacity of ribs. Then, the critical buckling load of the arc rib stiffened plate was accurately predicted based on the smeared stiffener method. The lightweight design of arc rib stiffened plates was carried out by means of the particle swarm optimization algorithm. The results show that, the arc rib stiffened plate has excellent bearing capacity, significant lightweight design effects, and promising optimization results.
- arc rib stiffened plate /
- smeared stiffener method /
- critical buckling load /
- lightweight

HTML全文

图 1 正交网格加筋板示意图

注为了解释图中的颜色，读者可以参考本文的电子网页版本，后同.

Figure 1. Schematic diagram of the orthogonal grid stiffened plate

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图 2 传统网格加筋板

Figure 2. The traditional grid stiffened plate

下载: 全尺寸图片幻灯片

图 3 弧形网格加筋板

Figure 3. The arc grid stiffened plate

下载: 全尺寸图片幻灯片

图 4 带凸筋和凹筋的弧形加筋板示意图

Figure 4. Schematic diagram of the stiffened plate with convex and concave arc ribs

下载: 全尺寸图片幻灯片

图 5 优化历程

Figure 5. The optimization process

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表 1 弧形加筋板参数的验证与设计空间

Table 1. The validation and design space of parameters of arc rib stiffened cylindrical plates

	H/mm	t/mm	h_e1/mm	h_m1/mm	h_e2/mm	h_m2/mm	N_a	N_c
lowerbound	1	5	5	20	20	5	3	4
upperbound	4	15	20	80	80	20	10	10

下载: 导出CSV

表 2 传统加筋板和弧形加筋板优化

Table 2. Optimization of traditional and arc rib stiffened plates

	H/mm	t/mm	h_e1/mm	h_m1/mm	h_e2/mm	h_m2/mm	N_a	N_c	critical load P_cr/(kN/m)	structural mass M/kg
initial design	1.10	13.00	24.00	24.00	24.00	24.00	3	3	13.5	7.91
lightweight design (traditional)	1.00	8.13	25.40	25.40	25.40	25.40	3	4	14.1	6.82
lightweight design (arc rib stiffened)	1.00	6.00	5.00	66.14	25.08	13.35	3	4	14.1	5.42

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