Study on self-loosening of bolted joints excited by dynamic axial load

被引：74
|
作者：
Liu, Jianhua [1 ]
Ouyang, Huajiang [2 ]
Feng, Zhiqiang [3 ]
Cai, Zhenbing [1 ]
Liu, Xuetong [1 ]
Zhu, Minhao [1 ]
机构：
[1] Southwest Jiaotong Univ, Tribol Res Inst, Chengdu 610031, Sichuan, Peoples R China
[2] Univ Liverpool, Sch Engn, Liverpool L69 3GH, Merseyside, England
[3] Univ Evry Val dEssonne, LMEE, Evry, France
来源：
TRIBOLOGY INTERNATIONAL | 2017年 / 115卷
基金：
中国国家自然科学基金;
关键词：
Bolted joints; Loosening; Fretting wear; Frictional energy dissipation; FINITE-ELEMENT-ANALYSIS; FRICTION COEFFICIENT; THREADED COMPONENTS; HARMONIC VIBRATION; WEAR; PERFORMANCE; MECHANISM; CONTACT; MODEL; TESTS;
D O I：
10.1016/j.triboint.2017.05.037
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Loosening tests of bolted joints are carried out under various preloads and excitation amplitudes. Three coatings are utilized to treat bolts, and their effects on the anti-loosening performance are studied. For the MoS2 coated bolt, a reasonable preload is calculated, and its anti-loosening performance is also examined. It is found that the anti-loosening performance of MoS2 coating on bolt is better than that of the other two coatings. Under the same equivalent stress as that of the uncoated bolt at the thread root, both the preload and the anti-loosening performance of the MoS2 coated bolt are significantly greater. Additionally, a FE model is created to simulate the bolted joint, and very good agreement is found between numerical and experimental results.
引用
收藏
页码：432 / 451
页数：20
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