摘要
飞机电力系统中的导线是传输电能和信息的关键组件,研究导线材质,对飞机设计的优化具有相当大的意义。在当前节能减排和保护环境的大背景下,铜制导线虽然具有较好的导电性和较强的机械性能,但由于密度大,铜制导线并不太适用于对重量要求非常敏感的场合,在减轻飞机重量和提高燃油效率的考虑下,密度和成本更低的铝代替铜制导线已成为趋势。介绍了目前飞机导线选用的基本原则,然后基于COMSOL Multiphysics仿真软件,对铝制和铜制导线进行电学性能、热学性能、结构性能等方面的仿真对比分析,分析两种不同材质不同的性能特点,总结了铝制导线的性能优势和应用限制,旨在优化飞机导线的设计方案。仿真结果表明,铝制导线的良好导电性能、热稳定性和机械强度,可以满足飞机部分电力系统的使用需求。
It is a key component about wires in aircraft power system to transmit power and information.In the current context of energy conservation,emission reduction,and environmental protection,although copper wire has good conductivity and strong mechanical properties,due to its high density,copper wire is not very suitable for occasions that are very sensitive to weight requirements.In order to reduce aircraft weight and improve fuel efficiency,it has become a trend to use aluminum instead of copper wire.This paper introduces the basic principles of current aircraft wire selection,and then uses COMSOL Multiphysics simulation software,to compare and analyze the electrical,thermal and structural properties of aluminum and copper wires.The performance characteristics of two different materials were analyzed,and the performance advantages and application limitations of aluminum wires were summarized,aiming to optimize the design scheme of aircraft wires.The simulation results show that the good conductivity,thermal stability and mechanical strength of aluminum conductors can meet the requirements of some aircraft power systems.
作者
闫锋
张彦昌
闫群
冉小林
YAN Feng;ZHANG Yanchang;YAN Qun;RAN Xiaolin(Civil Aviation Flight University of China,Guanghan 618307,China;Jilin Oversight Bureau of CAAC,Changchun 130031,China)
出处
《民用飞机设计与研究》
2023年第4期62-69,共8页
Civil Aircraft Design & Research
关键词
导线
铝制
COMSOL软件
仿真分析
性能特点
wire
aluminum
COMSOL software
simulation analysis
performance characteristics
