Influence of Wear Test Parameters on the Electrical Contact Performance of Brass Alloy/Copper Contactors Under Fretting Wear

Fan, Haosen; Cai, Zhenbing; Liu, Shanbang; Wu, Songbo; Zhu, Minhao

doi:10.1007/s11665-018-3821-9

Cited by 19 publications

(6 citation statements)

References 36 publications

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“…Then, a 3D FE model of the pin insertion process is developed by using ABAQUS software and its boundary conditions and mesh details are presented in Figure 2(B). Specifically, as the most commonly used electrical contact materials, brass and tin bronze are selected as the materials of pin and jack due to their good thermal conductivity, great electrical conductivity, as well as excellent corrosion and wear resistance 13,36,38 . The stress–strain curves of the above materials refer to literatures 39,40 .…”

Section: Fe Modelingmentioning

confidence: 99%

Numerical analysis on mechanical and fatigue behaviors of aviation electrical connector considering structural effect

Luo,

Wang,

Jiang

et al. 2023

Int J Numerical Modelling

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This work is motivated by the fact that the reliability of electrical connectors influenced by their mechanical behavior and fatigue life directly affects the working performance of the whole equipment system. In this paper, theoretical analyses of insertion force, maximum stress, and fatigue life in an aviation electrical connector are presented and the corresponding mathematical models are firstly derived. Then, to numerically investigate its mechanical behavior and fatigue life, a simplified 3D FE model is developed by using ABAQUS and FE‐SAFE software and verified by experiments and theoretical analysis. Finally, the distribution and evolution characteristics of contact forces, stress and fatigue life considering the influences of reed thickness and slot width are quantitatively analyzed in details. The results indicate that the insertion force first increases and then stabilizes at the level of 0.16 N as the pin head is fully inserted into the jack, which shows an opposite to the evolution of extraction force. Moreover, the maximum value of stress and the minimum value of fatigue life are all located at the root of the jack reed. Besides, unlike the small effect of slot width, the Fimax and σmax values obviously increase and the Nf value decreases with the increment of reed thickness.

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Section: Fe Modelingmentioning

confidence: 99%

Numerical analysis on mechanical and fatigue behaviors of aviation electrical connector considering structural effect

Luo,

Wang,

Jiang

et al. 2023

Int J Numerical Modelling

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“…The heating of the equipment clamp is mostly caused by the loose connection bolts, the loose contact of the electrical contact surface, and the greatly reduced actual contact area, which leads to the rapid rise of the contact resistance. Therefore, in order to fundamentally reduce the heating of the equipment clamp, it is necessary to reduce the contact resistance of the connector connection during the use of the strain clamp [14]. In the past, when the power equipment has the defects of heating and power failure, method of comprehensive maintenance of power failure is always adopt.…”

Section: Solutions On Heating Of Clampmentioning

confidence: 99%

Cause Analysis and Solutions About Abnormal Heating of Equipment Clamp

Zheng

Xu²,

Gong³

2023

E3S Web Conf.

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As a kind of link terminal in power grid system, clamp has become one of the key components and widely used for connecting the transmission lines and electrical equipment. However, the joint between the tubular structure and the terminal plate or the drainage plate is always a weak part, which is easy to produce defects and then accelerate the failure of the clamp during service. This is also limited the use space of clamp to a certain extent. In this paper, research status on heating causes of equipment clamps and the corresponding solutions are mainly summarized. And the application of disc shape memory alloy gasket as well as the design of mortise tenon structure clamp will fundamentally solve the problem of abnormal heating of wire clamp.

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“…For instance, the papers by Spalvins [2], Zhu et al [3], Friedrich et al [4], Vamsi Krisha et al [5], and Huai et al [6] provide examples of present and prospective applications of solid lubricants in many fields of industry. In particular, issues related to wear associated to copper electrical contacts is a problem of actual importance that still needs a solution [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Comparison of the Tribological Behaviour of Various Graphene Nano-Coatings as a Solid Lubricant for Copper

et al. 2023

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Among the amazing properties of graphene, superlubricity is one of the most promising properties. This property can be used in industrial field components to reduce friction without using liquid lubricants, and therefore, improve machines’ efficiency and reliability with low environmental impact thanks to the elimination of oil or grease lubricants. In this paper, copper alloy samples for electrical purposes were coated with graphene by four different deposition processes. The investigated synthesis processes are direct grown graphene on bulk Cu, transferred graphene, and self-assembled graphene from graphene flakes. Ball-on-disk tests were performed to evaluate the tribological performance of samples. The aim was to compare the effect on the tribological performance given by different types of coatings, taking also into consideration industrial scalability. Interestingly, not all graphene nano-coatings being compared proved effective in reducing friction and wear in gross sliding conditions. The results show that the cost-effective self-assembled graphene is the longer-lasting nano-coating among those investigated in this work, and can reduce both friction and wear. Tests revealed that graphene coatings can be applied as a solid lubricant, reducing friction up to 78%, and reducing the average wear volume up to 40%.

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Influence of Wear Test Parameters on the Electrical Contact Performance of Brass Alloy/Copper Contactors Under Fretting Wear

Cited by 19 publications

References 36 publications

Numerical analysis on mechanical and fatigue behaviors of aviation electrical connector considering structural effect

Numerical analysis on mechanical and fatigue behaviors of aviation electrical connector considering structural effect

Cause Analysis and Solutions About Abnormal Heating of Equipment Clamp

Comparison of the Tribological Behaviour of Various Graphene Nano-Coatings as a Solid Lubricant for Copper

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