Journal ArticleDOI
An investigation on the anti-loosening characteristics of threaded fasteners under vibratory conditions
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TLDR
In this article, an attempt has been made to test the anti-loosening ability of various locking screw fasteners, such as nylock nut, aerotight nut, chemical lock, cleveloc nut, flat washer, nylon washer and spring washer with different initial clamping forces under the accelerated vibrating conditions obtained in an indigenously made testing rig.About:
This article is published in Mechanism and Machine Theory.The article was published on 2010-08-01. It has received 64 citations till now. The article focuses on the topics: Washer & Threaded fastener.read more
Citations
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Journal ArticleDOI
Effect of pitch difference between the bolt–nut connections upon the anti-loosening performance and fatigue life
Nao-Aki Noda,Xin Chen,Xin Chen,Yoshikazu Sano,Magd Abdel Wahab,Hikaru Maruyama,Ryota Fujisawa,Yasushi Takase +7 more
TL;DR: In this paper, the effect of a slight pitch difference between a bolt and a nut was studied and a suitable pitch difference was determined taking into account the anti-loosening and clamping abilities.
Journal ArticleDOI
Study on self-loosening of bolted joints excited by dynamic axial load
TL;DR: In this article, the anti-loosening performance of the MoS 2 coating on the bolt was investigated under various preloads and excitation amplitudes, and it was found that the performance was better than that of the other two coatings.
Journal ArticleDOI
Towards an understanding of the loosening characteristics of prevailing torque nuts
TL;DR: In this paper, the authors identify a general condition that can result in the complete loosening and detachment of all-metal prevailing torque type nuts when transverse joint slip is occurring.
Journal ArticleDOI
Anti-loosening performance of coatings on fasteners subjected to dynamic shear load
TL;DR: In this paper, three typical coatings, PTFE, MoS2, and TiN applied to bolts and nuts, are tested in an experimentally examining the loosening mechanisms of fasteners and assessing the anti-loosening performance of the three tested coatings based on their tightening characteristics, loosening curves, and the damage of thread surface.
Journal ArticleDOI
Finite element modelling and experimental validation of bolt loosening due to thread wear under transverse cyclic loading
TL;DR: In this article, a finite element model was proposed to simulate the self-loosening of bolted joints under transverse loading, and the predicted results agreed with the experimental results with respect to the evolutionary trend of the wear profile and clamping force.
References
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Journal ArticleDOI
An anti-loosening screw-fastener innovation and its evaluation
TL;DR: In this article, the step-lock Bolt (SLB) was developed to prevent screw fasteners from starting to loosen by applying a force cyclically at right angles to the center line of a bolt.
Journal ArticleDOI
Evaluation of anti-loosening nuts for screw fasteners
TL;DR: In this paper, the authors compared seven types of anti-loosening nuts and evaluated their ability, including their manoeuvrability, to stop the initiation of the loosening process.
On the Anti-Loosening Property of Different Fasteners
TL;DR: In this paper, the results obtained on the antiloosening property of a number of threaded fasteners are presented, discussed and the effective one is found out, where the clamping force can be continuously recorded under the application of accelerated known frequency vibration between two plates of nuts and bolt.
Related Papers (5)
Three-dimensional finite element analysis of threaded fastener loosening due to dynamic shear load
Avoiding self-loosening failure of bolted joints with numerical assessment of local contact state
G. Dinger,Christoph Friedrich +1 more