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 14 publications

(5 citation statements)

References 36 publications

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“…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 Moreover, all the displacements and rotations at the bottom of the jack are restricted.…”

Section: Fatigue Lifementioning

confidence: 99%

“…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%

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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: Fatigue Lifementioning

confidence: 99%

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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“…Francisco et al 8 studied the relationship between contact surface morphology and contact resistance, the number of contact spots between contact pieces increased, the contact resistance decreased. Kong and Swingler 9 and Liu et al 10 found that the more serious wear on the contact surface of electrical connectors, the greater the friction force, and contact resistance. Zhang et al 11 reported that the silver and aluminum electrodes are in contact with each other to form a galvanic cell, which was an important reason for the contact resistance of the battery.…”

Section: Introductionmentioning

confidence: 99%

Evolution of contact performance of industry electrical connector based on reliability accelerated testing

Han

Pan

et al. 2021

Advances in Mechanical Engineering

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The evolution of contact performance of electrical connectors, as an expression of service performance, played a significant role in various electronic equipment or system. However, very few methods had been used to detect the evolution of contact performance effectively and accurately. Hence, in this research, reliability accelerated testing was conducted to investigate the evolution of contact performance of electrical connectors. To detect the evolution of contact performance, contact resistance and friction and wear of the connector were measured using a DC resistance tester and an electron microscope respectively. Also, the effect of external conditions such as ambient temperature, mating speed, mating cycles was statistically investigated, and evolution curves were developed for contact resistance and abrasion loss. The obtained results revealed the temperature and mating speed affected the contact performance of electrical connectors. The increment of temperature reduced the shear strength of material and increased the thickness of oxide film. Increased mating speed greatly increased the probability of fracture of micro-protrusion due to collision, the wear form of connector had realized transition from low-speed adhesive wear to high-speed peeling wear. In addition, when the connector was mated about 3000 cycles, the contact performance of the connector would be greatly decreased.

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

Cited by 14 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

Evolution of contact performance of industry electrical connector based on reliability accelerated testing

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