摘要
Abstract
There are a large number of curved parts on aircraft and a wide range of distribution,such as aircraft wings,tail wings,air inlets,fuselage,doors,windows,etc.,which are generally curved parts.More curved parts are used to improve the overall smoothness of the aircraft and thereby minimize air resistance.Unlike straight and flat parts,the machining and manufacturing of curved parts are more technical difficult.This paper designs the machining plan based on grinding as the core technology,and gives a detailed analysis of the grinding process.In order to generate visual analysis results,static analysis is carried out on finite element analysis software.Here,processing equipment,parts,key components,etc.need to be modeled,so as to obtain a linear relationship under the static state.Further dynamic process analysis results show that damping,vibration frequency,and resonance all have an impact on the machining of aircraft curved parts.The higher the vibration frequency,the greater the stress on the machining tool.The position where resonance occurs will cause the displacement of the machining tool to increase.The abrasive belt and grinding head are optimized,and higher precision on the part surface can be obtained after optimization.关键词
民用飞机/曲面零件/磨削加工/振动频率/有限元分析Key words
civil aircraft/curved parts/grinding processing/vibration frequency/finite element analysis分类
航空航天
