Research on fretting Regimes of gold-plated copper alloy electrical contact material under different vibration amplitude and frequency combinations

Ren, Wanbin; Du, Yingwei; Cui, Li; Wang, Peng; Song, Jing

doi:10.1016/j.wear.2014.10.009

Cited by 29 publications

(2 citation statements)

References 30 publications

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“…(4) Angular vibration excitation: Under the angular vibration excitation, the conductive fluid and the metal electrode have relative motion, which causes the change in contact area and the change in contact resistance [ 22 , 23 , 24 , 25 , 26 ]. Angular vibration is set to

, U r and f r , respectively.…”

Section: Fluid Ring Contact Resistance Modelmentioning

confidence: 99%

Study on the Performance of Liquid-Solid Contact Resistance Based on Magnetohydrodynamic Micro-Angular Vibration Sensor

Xia

Tuo

et al. 2022

Sensors

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In this paper, the influence of the contact resistance between the conductive fluid and the metal electrode on the output characteristics of the magnetic fluid micro-angular vibration sensor (MHD sensor) is theoretically analyzed. The contact resistance models based on the solid-solid electric contact theory are established based on the resistivity, temperature, pressure and angular vibration of the materials between the conductive fluid and the metal electrode. The contact resistance was tested by setting up an experimental platform and making conductive fluid rings with electrode materials of Ag, Cu and Ti. The results show that the static contact resistance between the conductive fluid and the metal electrode is positively correlated with the material resistivity and temperature, and negatively correlated with the surface roughness and contact pressure of the metal electrode. The dynamic contact resistance fluctuation is proportional to the amplitude of the input voltage of the angle shaker and inversely proportional to the square of the input frequency. At the same time, reducing contact resistance can improve the MHD sensor’s performance.

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, U r and f r , respectively.…”

Section: Fluid Ring Contact Resistance Modelmentioning

confidence: 99%

Study on the Performance of Liquid-Solid Contact Resistance Based on Magnetohydrodynamic Micro-Angular Vibration Sensor

Xia

Tuo

et al. 2022

Sensors

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“…The fluctuation of the ECR became more severe when the current was higher, and the threshold value of the ECR (100 mΩ) was delayed at high temperatures. Based on the experimental data and test analysis, the mechanism of the contact failure degradation of electrical contact parts at different temperatures was obtained [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Research on the Influence of the Closing Amount of Electrical Connector Contacts on Fretting Wear under a Vibration Environment

et al. 2023

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As a key component for transmitting electrical signals, the electrical contact performance of electrical connectors is directly affected by the closing amount of the socket. It is urgent to explore the relationship between contact resistance and the closing amount of cylindrical groove electric connectors, as well as the range of the closing amount when their comprehensive performance is optimal in vibration environments. Based on Hertz contact theory, the long- and short-axis parameters of the contact elliptical surface were obtained using the Boussinesq solution and the contact deformation coordination equation. An electrical contact resistance (ECR) theoretical model was obtained using Holm’s electric contact theory and the GW contact model. According to the ECR and long- and short-axis parameters of the contact elliptical surface and the theoretical model of contact resistance, an ECR model based on changes in the initial closing amount (deflection) of the socket spring was established by introducing the cantilever beam model of the socket spring. Then, the failure mechanism of fretting wear and the change mechanism of the ECR of the electrical connectors under a vibration environment were analyzed using the sinusoidal vibration test of electric connectors. The optimal range of the initial closing amount of the cylindrical-groove-closing-type electrical connector socket spring was determined, providing a reference for the reliability designs of electrical connectors.

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A New Method for Calculation of Vapor–Liquid Equilibrium (VLE) of Au–Cu Alloy System

Kong

Gao

et al. 2019

The Minerals, Metals &Amp; Materials Series

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Research on fretting Regimes of gold-plated copper alloy electrical contact material under different vibration amplitude and frequency combinations

Cited by 29 publications

References 30 publications

Study on the Performance of Liquid-Solid Contact Resistance Based on Magnetohydrodynamic Micro-Angular Vibration Sensor

Study on the Performance of Liquid-Solid Contact Resistance Based on Magnetohydrodynamic Micro-Angular Vibration Sensor

Research on the Influence of the Closing Amount of Electrical Connector Contacts on Fretting Wear under a Vibration Environment

A New Method for Calculation of Vapor–Liquid Equilibrium (VLE) of Au–Cu Alloy System

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