雷达罩变厚度蜂窝展开加工的力学约束

复合材料科学与工程 ›› 2014, Vol. 0 ›› Issue (6): 70-73.

雷达罩变厚度蜂窝展开加工的力学约束

李兴德¹, 周春苹², 裘进浩¹

1.南京航空航天大学,南京210016;
2.中航工业济南特种结构研究所,济南250023

收稿日期:2013-09-23 出版日期:2014-06-28 发布日期:2021-09-14
作者简介:李兴德(1967-),男,在读博士研究生,研究员,主要从事蜂窝夹层结构的结构强度研究,lxingde@126.com。
基金资助:
十二五航空项目(6190100305)

MECHANICAL CONSIDERATIONS FOR UNFOLDED HONEYCOMB MILLING

LI Xing-de¹, ZHOU Chun-ping² QIU Jin-hao¹

1. Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2. Research Institute for Special Structures of Aeronautical Composites, Jinan 250023, China

Received:2013-09-23 Online:2014-06-28 Published:2021-09-14

摘要/Abstract

摘要： 在文献[1]中,雷达罩变厚度蜂窝展开加工后被铺贴到模具上。本文针对蜂窝中的应力应变,运用几何学及力学的综合方法进行力学推导,得到蜂窝的应力应变数据,并确定雷达罩蜂窝展开加工的力学约束条件,从而对不同的雷达罩蜂窝材料加工的合理尺寸给出合理的判据。这种方法避免了传统的有限元方法中的复杂的有限元建模过程,也避免了有限元计算中的误差。在针对FEMAP程序二次开发后,本文的计算结果在FEMAP(参考文献[2])有限元软件中得到形象的显示,使二次开发的程序与有限元模型之间相互联通。

关键词: 变厚度, 蜂窝材料, 夹层结构雷达罩, 展开蜂窝加工, 力学约束条件

Abstract: In reference [1], honeycomb material with changing thickness is applied to the molds of radome after it is milled. This paper investigates the stress and strains in the honeycomb material in this process and use these stress and strains as criteria to determine proper portions suitable for milling in one process. These methods avoid the complicated finite modeling process and the errors caused by the finite elements. After proper programming to the FEMAP software, the results in this paper can be displayed in FEMAP in the form of stress and strain level contours, which gives a vivid link between the FEM analysis and the results of this paper.

Key words: changing thickness, honeycomb material, sandwich radome, expanded honeycomb machining, mechanical constrains

中图分类号:

TB332

李兴德, 周春苹, 裘进浩. 雷达罩变厚度蜂窝展开加工的力学约束[J]. 复合材料科学与工程, 2014, 0(6): 70-73.

LI Xing-de, ZHOU Chun-ping QIU Jin-hao. MECHANICAL CONSIDERATIONS FOR UNFOLDED HONEYCOMB MILLING[J]. COMPOSITES SCIENCE AND ENGINEERING, 2014, 0(6): 70-73.