直升机金属桨叶后段件与大梁胶接强度分析方法研究
Research on Bonding Strength Analysis Method Between the Rear Section of Metal Blade and Girder of Helicopter
潘永福 1何水莲 1姜天增1
作者信息
- 1. 昌河飞机工业(集团)有限责任公司,景德镇 333000
- 折叠
摘要
某型直升机的主桨叶是金属桨叶构型,其金属大梁和后段件通过结构胶胶接在一起,若结构胶胶接强度不足,会造成后段件脱离,对直升机的飞行安全造成重大影响.为分析金属桨叶后段件与大梁的胶接强度,先计算桨叶受到的气动力、离心力等载荷,然后构建有限元分析模型,获得在正常工作状态下桨叶后段件与大梁胶接处胶层的应力分布情况,检验该处结构胶的强度是否满足使用要求.
Abstract
The main blade of a certain type of helicopter is a metal blade configuration,and the metal girder and the rear part are bonded together by structural adhesive.If the structural adhesive bonding strength is insufficient,the rear part will be separated,which has a great impact on the flight safety of the helicopter.In order to analyze the adhesive strength between the rear section of the metal blade and the girder,the aerodynamic force,centrifugal force and other loads subjected to the blade were first calculated,and then the finite element analysis model was constructed to obtain the stress distribution of the adhesive layer at the adhesive joint between the rear section of the blade and the girder under normal working conditions,and to check whether the strength of the structural adhesive there meets the application requirements.
关键词
胶接强度/金属桨叶/有限元分析/直升机Key words
bonding strength/metal blades/finite element analysis/helicopter引用本文复制引用
出版年
2024
NETL
NSTL
万方数据