一种飞机着陆灯的结构设计及其机械特性分析  

Design of an Aircraft Landing Light and Analysis of Its Mechanical Characteristics

作　　者：姚晨熙 段富海[1] 杨光 胡伟 韩东旭 季贤聪 YAO Chenxi;DUAN Fuhai;YANG Guang;HU Wei;HAN Dongxu;JI Xiancong(School of Mechanical Engineering,Dalian University of Technology,Dalian,Liaoning 116023,China)

机构地区：[1]大连理工大学机械工程学院,辽宁大连116023

出　　处：《机电工程技术》2020年第5期123-126,共4页Mechanical & Electrical Engineering Technology

基　　金：大学生创新创业训练计划资助项目(编号:2019101410501010823)。

摘　　要：碳纤维复合材料具有高比模量、高比强度、耐腐蚀和可设计性等突出特性,已应用在众多领域,同时随着飞机设计向轻量化方向发展,采用碳纤维复合材料代替铝合金材料已成为主要研究方向。设计了一种典型的飞机着陆灯,并通过有限元仿真分析对比了铝合金材料和碳纤维复合材料的机械特性,优化了机械结构。仿真结果表明,使用碳纤维材料可以减轻着陆灯重量,减少应力和变形,优化后的壳体和基体重量分别降低了15%和17%。因此用碳纤维复合材料替代铝合金来解决飞机着陆灯在使用和维护时存在的问题,是一个有效技术途径。Carbon fiber composites have outstanding characteristics such as high specific modulus, high specific strength, corrosion resistance and design ability. It have been applied in many fields. At the same time, with the development of aircraft design in the direction of lightweight, the use of carbon fiber composites instead of aluminum alloys has been a main research direction. A typical aircraft landing light was designed, the mechanical properties of aluminum alloy materials and carbon fiber composite materials were compared and the mechanical structure by finite element simulation was optimized. It can be seen from the simulation results that the use of carbon fiber material can reduce the weight of landing light, stress and deformation, and the optimized shell and substrate weights are reduced by 15% and 17%. Therefore, replacing aluminum alloys with carbon fiber composite materials to solve the problems in the use and maintenance of aircraft landing lights is an effective technical approach.

关 键 词：着陆灯 机外照明 碳纤维复合材料 有限元仿真 

分 类 号：TH122[机械工程—机械设计及理论]