摘要
针对某型机研制中遇到钛合金耳片结构小边距孔的强化问题,以Forcemate压合衬套为强化方法,研究其对小边距孔的强化效果。结合有限元方法分析干涉量分别为0.5%、1.0%、1.5%、2.0%、2.5%对孔周应力应变的影响,并将小边距孔与常规边距孔的应力结果进行对比。对强化后的耳片施加循环外载,获得干涉量与疲劳寿命之间的关系,最终为最佳工艺参数的选取提供理论依据。
Strengthening problem of short-edge hole of titanium lug is an important task during a new aircraft development stage, ForceMate steel bushing process has been carried out to study the fatigue life of short-edge hole. Research the interference of 0. 5% ,1.0% ,1.5% ,2.0% ,2. 5% how to effect the stress and strain around the hole with FEA, and comparisons with short- edge hole and normal hole are made as well. Then apply a cycle load on the lug to predict the fatigue life and provide a theoretical guidance for the optimum technology parameter.
作者
曹增强
胡朝阳
甘学东
赵勇
王杰
韩超众
CAO Zeng Qiang HU ZhaoYang GAN XueDong ZHAO Yong WANG Jie HAN ChaoZhong(School of Mechanical Engineering, Northwestern Polytechnical University, Xi＇ an 710072, China Chinese Aincrafi Design Research Institute, Chengdu 610041, China)
出处
《机械强度》
CAS
CSCD
北大核心
2016年第5期1093-1098,共6页
Journal of Mechanical Strength
关键词
小边距孔
压合衬套
干涉配合
疲劳寿命
Short-edge hole
Steel bushing
Interference-flt
Fatigue life
