Effect of clearance position of torque link structure on nose landing gear shimmy

被引：4

作者：

Gao, Xiangguo ^{[1
]}

Zheng, Yuchen ^{[2
]}

Du, Xiaolei ^{[3
]}

Shan, Zezhong ^{[1
]}

Jia, Baohui ^{[2
]}

Lu, Xiang ^{[2
]}

机构：

[1] Civil Aviat Univ China, Aviat Engn Inst, Tianjin 300300, Peoples R China

[2] Civil Aviat Univ China, Sch Transportat Sci & Engn, Tianjin 300300, Peoples R China

[3] Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Xian 710072, Peoples R China

来源：

INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS | 2024年 / 159卷

基金：

中国国家自然科学基金;

关键词：

Clearance position; Shimmy; Torque link; Bifurcation analysis; Nose landing gear; MODEL; COULOMB;

D O I：

10.1016/j.ijnonlinmec.2023.104616

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The clearance of the torque link will affect the stability of landing gear shimmy. In this paper, a six-degree of-freedom mathematical model of dual-wheel nose landing gear shimmy including longitudinal bending and axial displacement of the strut is established. The shimmy characteristics of five different positions of clearance at the central connecting pin of the lower torque link and connection between the lower torque link and the inner cylinder of the strut are analyzed by bifurcation diagram, limit cycle and time history diagram. The results show that: there is a clearance on both sides of the head of the lower torque link, compared with the clearance exists only on one side (left or right), the range of the torsional shimmy of the nose landing gear is larger; when there is a clearance on one side (left or right) near 2 mm at the connection between the lower torque link and the inner cylinder of the strut, the torsional shimmy appears a period doubling phenomenon.

引用

页数：14

共 29 条

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