复合材料机身壁板连接分析及轻量化设计

复合材料科学与工程 ›› 2021, Vol. 0 ›› Issue (1): 28-34.

复合材料机身壁板连接分析及轻量化设计

邵家儒¹, 张月月^1*, 曾宪君², 刘牛¹

1.重庆理工大学机械工程学院,重庆400054;
2.重庆通用航空产业集团有限公司,重庆401135

收稿日期:2020-04-08 出版日期:2021-01-28 发布日期:2021-01-25
通讯作者: 张月月(1995-),女,研究生,主要从事机械CAE设计方面的研究,1368317837@qq.com。
作者简介:邵家儒(1986-),男,副教授,博士,主要从事材料结构一体化设计、机械CAE设计、流固耦合动力学方面的研究。
基金资助:
重庆市技术创新与应用发展重大主题专项(cstc2019jscx-zdztzx0020,cstc2019jscx-zdztzx0028)

CONNECTION ANALYSIS AND LIGHTWEIGHT DESIGN OF THE LIGHT AIRCRAFT COMPOSITE FUSELAGE PANEL

SHAO Jia-ru¹, ZHANG Yue-yue^1*, ZENG Xian-jun², LIU Niu¹

1. College of Mechanical Engineering, Chongqing University of Technology, Chongqing 400054,China;
2. Chongqing General Aviation Industry Group Limited Liability Company, Chongqing 401135, China

Received:2020-04-08 Online:2021-01-28 Published:2021-01-25

摘要/Abstract

摘要： 对复合材料机身壁板的单钉连接、多钉连接和胶接三种形式进行结构损伤分析,基于Hashin准则对基体和纤维的起始损伤进行判定,分析了纵向拉伸载荷下的失效模式。采用Optistruct对机身壁板进行了轻量化设计,在满足力学性能和制造工艺的要求下,对复合材料进行非均匀铺层优化,通过自由尺寸优化确定铺层数量,尺寸优化确定铺层厚度,优化铺层顺序获取最优材料性能,实现减轻结构重量的目标。通过优化设计,机身结构在满足强度、刚度和制造工艺要求的前提下重量得到大幅降低。

关键词: 复合材料, 机身壁板, 连接损伤, 铺层优化

Abstract: The structural damage analysis was carried out on three types of composite fuselage panels (single rivet, multi-rivets and adhesive connection). Based on Hashin criterion, the initial damage of matrix and fiber was determined, and the failure mode under longitudinal tensile load was analyzed. Optistruct was used to conduct structural optimization analysis on the lightweight of fuselage panel. In order to meet the requirements of mechanical properties and technological manufacturing, the number, thickness and sequence of composite layers were optimized. The number of layings was determined by free dimensional optimization, the thickness of layings was determined by dimensional optimization, and the layering sequence was optimized to obtain the optimal material properties to achieve the goal of reducing the structural weight. The results show that the weight of the fuselage structure is greatly reduced while meeting the requirements of strength, stiffness and manufacturing process.

Key words: composite material, fuselage panel, connection damage, layer optimization

中图分类号:

TB332

邵家儒, 张月月, 曾宪君, 刘牛. 复合材料机身壁板连接分析及轻量化设计[J]. 复合材料科学与工程, 2021, 0(1): 28-34.

SHAO Jia-ru, ZHANG Yue-yue, ZENG Xian-jun, LIU Niu. CONNECTION ANALYSIS AND LIGHTWEIGHT DESIGN OF THE LIGHT AIRCRAFT COMPOSITE FUSELAGE PANEL[J]. COMPOSITES SCIENCE AND ENGINEERING, 2021, 0(1): 28-34.

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