TY - JOUR
T1 - 铝钛复合耳片结构设计及可靠性分析
AU - Feng, Yunwen
AU - Zhang, Jiale
AU - Xue, Xiaofeng
AU - Zhong, Xiaoping
AU - Xie, Wei
N1 - Publisher Copyright:
© 2021 Journal of Northwestern Polytechnical University.
PY - 2021/2
Y1 - 2021/2
N2 - Aircraft lug joint is the key part of load transfer. In order to improve the safety of lug joint, on the premise of meeting the design requirements of static strength and fatigue, the composite connection lug structure design technology of different metal materials is proposed in this paper. Firstly, the damage safety design and life reliability analysis of the lug structure are studied theoretically. Secondly, based on the concept of damage safety design and the design principle of deformation coordination, the design method of composite connection lug with deformation coordination is proposed, and the thickness ratio of single ear is 0.8:1:0.8. Finally, the reliability of the composite lug is analyzed. The results show that the structural design scheme of aluminum-titanium composite ear piece can meet the requirements of static strength and damage tolerance, and compared with the conventional ear structure, the failure probability of structure mission life is greatly reduced when the weight of the composite connection lug is only increased by 4.9%. The proposed method can effectively guide the structural design of composite ear piece.
AB - Aircraft lug joint is the key part of load transfer. In order to improve the safety of lug joint, on the premise of meeting the design requirements of static strength and fatigue, the composite connection lug structure design technology of different metal materials is proposed in this paper. Firstly, the damage safety design and life reliability analysis of the lug structure are studied theoretically. Secondly, based on the concept of damage safety design and the design principle of deformation coordination, the design method of composite connection lug with deformation coordination is proposed, and the thickness ratio of single ear is 0.8:1:0.8. Finally, the reliability of the composite lug is analyzed. The results show that the structural design scheme of aluminum-titanium composite ear piece can meet the requirements of static strength and damage tolerance, and compared with the conventional ear structure, the failure probability of structure mission life is greatly reduced when the weight of the composite connection lug is only increased by 4.9%. The proposed method can effectively guide the structural design of composite ear piece.
KW - Composite connection lug
KW - Damage safety design
KW - Damage tolerance
KW - Deformation coordination
KW - Life reliability analysis
KW - Structural design
UR - http://www.scopus.com/inward/record.url?scp=85099879726&partnerID=8YFLogxK
U2 - 10.1051/jnwpu/20213910001
DO - 10.1051/jnwpu/20213910001
M3 - 文章
AN - SCOPUS:85099879726
SN - 1000-2758
VL - 39
SP - 1
EP - 8
JO - Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University
JF - Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University
IS - 1
ER -