民机襟翼交联机构吸能元件的吸能特性  

Energy absorption characteristics of energy-absorbing elements of civil aircraft flap crosslinking mechanism

作　　者：高煜翔 陆建国 方俊伟 周晓宸 席博伟 GAO Yuxiang;LU Jianguo;FANG Junwei;ZHOU Xiaochen;XI Bowei(Shanghai Aircraft Design and Research Institute,Commercial Aircraft Corporation of China,Limited,Shanghai 200135,China;School of Aeronautics,Northwestern Polytechnical University,Xi'an 710072,China;Aviation Equipment Research Institute,Qing’an Group Company,Limited,Aviation Industry Corporation of China,Limited,Xi'an 710077,China)

机构地区：[1]中国商用飞机有限责任公司上海飞机设计研究院,上海200135 [2]西北工业大学航空学院,西安710072 [3]中国航空工业集团有限公司庆安集团有限公司航空设备研究所,西安710077

出　　处：《航空动力学报》2022年第8期1771-1779,共9页Journal of Aerospace Power

摘　　要：采用有限元分析与冲击试验相结合的方式对膨胀管与波纹管的吸能特性进行探究:通过数值仿真分析对吸能元件的试验过程进行初步掌握,同时根据冲击试验结果对试验设计的不合理之处进行修正;然后开展两种吸能元件的动态冲击试验,探究其吸能特性,最终比较分析有限元仿真分析与落锤冲击试验的试验结果,选择效果理想的吸能元件应用到襟翼交联机构上。结果表明:无论是从吸能行程、吸能稳定性还是吸能结构的设计考虑,波纹管都是最适合应用到交联机构中的吸能元件,该吸能元件比吸能大,吸能过程平缓稳定,吸收能量之后只有塑性形变但结构不发生破坏,同时吸能行程短,吸能结构简单,便于安装拆卸。The energy absorption characteristics of expansion tube and bellows were explored by combining finite element analysis and impact test:the test process of energy-absorbing element was preliminarily mastered through numerical simulation analysis,and the irrationality of test design was corrected according to the impact test results;then the dynamic impact test of two kinds of energy-absorbing elements was carried out to explore their energy absorption characteristics.Finally,the test results of finite element simulation analysis and dropping-hammer impact test were compared and analyzed to select the energy-absorbing element with ideal effect to be applied to the flap crosslinking mechanism.The results showed that the bellows were the most suitable energy absorbing element for interconnecting strut,irrespective of considering the energy absorbing stroke,energy absorbing stability or the design of energy absorbing structure.The specific energy absorption of bellows was large.The energy absorption process was gentle and stable.There was only plastic deformation after absorbing energy and the structure was not dam-aged.Besides,the energy absorption stroke of bellows was short and the energy absorption structure was simple,making it convenient for installation and disassembly.

关 键 词：吸能元件 襟翼交联机构 数值仿真分析 落锤冲击试验 膨胀管 波纹管 

分 类 号：V214.1[航空宇航科学与技术—航空宇航推进理论与工程]