Functional degradation reliability analysis for non-uniform wear of multi-rotating joints of mechanical structures

Jiang, Deyin; Han, Yajie; Wang, Keke; Jiang, Senke; Cui, Weimin; Song, Bifeng

doi:10.1016/j.engfailanal.2023.107934

Cited by 8 publications

(2 citation statements)

References 38 publications

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“…/ ij e = ij ne (10) Before the bearing and journal wears out, the contact deformation caused by the contact collision can be expressed:…”

Section: Vector Modeling Of Clearance For Revolving Jointmentioning

confidence: 99%

“…Li et al [9] utilized the Archard model to calculate the wear of aircraft landing gear hatch locks, and combined with multi-source uncertainty, proposed a margin-based reliability analysis method for hatch lock mechanism. Jiang et al [10] investigated the non-uniform wear characteristics of aircraft landing gear hatch locks containing multiple clearance joints and performed a degradation reliability analysis of the mechanism using the Wiener process. Zhuang et al [11] proposed an effective wear prediction method based on Archard model in the framework of multi-body dynamics, and verified the effectiveness of the wear prediction method through experimental experiment of crank-slider mechanism.…”

Section: Introductionmentioning

confidence: 99%

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A method for predicting non-uniform wear of flapping driving mechanism joint considering uncertainty

Wang,

Jiang,

Jiang

et al. 2024

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The driving mechanism of the flapping wing aircraft is a critical component which affects the aircraft performance directly. However, in practical flights, the joint of the mechanism was found with non-uniform wear, in some cases leading to the failure of the mechanism. As an essential connection component, the joint has a crucial effect on the transmitting loads and the motion rules, but the clearance of the joint is unavoidable, it will affect the performance of the mechanism. At the same time, the contact collision force triggers non-uniform wear, accelerates the functional degradation of the mechanism, and impacts the safety of the mechanism. Therefore, a method for predicting non-uniform wear of joint considering multi-source random variables is proposed in this paper, and the flapping driving mechanism is taken as an example for joint wear prediction, and the validity of the method is verified by comparing with the practical experimental joint wear. In addition, the wear reliability and sensitivity of the flapping driving mechanism considering uncertainty are also investigated, and it provides guidance for the lifetime prediction and optimization design of the flapping driving mechanism.

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“…/ ij e = ij ne (10) Before the bearing and journal wears out, the contact deformation caused by the contact collision can be expressed:…”

Section: Vector Modeling Of Clearance For Revolving Jointmentioning

confidence: 99%