Analysis on Bounce Characteristics of Cu-W Composite Contact with Micro-Oriented Structure

doi:10.16628/j.cnki.2095-8188.2023.08.001

Abstract

Abstract:

The commercial disordered structure Cu-W contact and three kinds of micro-oriented Cu-W composite contacts were taken as the research object. Through the establishment of contactor contact bounce dynamics model, the electromagnetic model and the contact mechanics model, the machine-electric-magnetic multi-physics coupling simulation analysis of the contactor was implemented. The stress-strain difference of the three micro-oriented structure and commercial disordered structure Cu-W contact under load was studied. The influence of the three micro-oriented structure and commercial disordered structure Cu-W contact on contact bounce was analized and verified through experiment. The micro-oriented structure contact was found to have smaller bounce amplitudes and shorter bounce times. The results show that compared with commercial disordered structure Cu-W contacts, the micro-oriented Cu-W composite contacts have better bounce resistance, and Cu-W contact with the rhombic dodecahedron frame structure possess the best anti-bounce characteristics.

Key words: Cu-W composites, micro-oriented structure, contactors, contact bounces

CLC Number:

TM504

HAN Ying, HUANG Xin, LIU Dongrui, HOU Chunguang. Analysis on Bounce Characteristics of Cu-W Composite Contact with Micro-Oriented Structure[J]. LOW VOLTAGE APPARATUS, 2023, 0(8): 1-9.

Figures/Tables 22

References 16

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结构	单元最大应力/MPa	单元最大应变/mm	单元最大应变能/mJ
层叠骨架	2.071	2.410×10^-6	1.521×10^-8
立方体骨架	3.155	3.685×10^-6	2.611×10^-8
菱形十二面体骨架	3.266	5.137×10^-6	6.414×10^-8
商用无序	1.283	5.167×10^-6	1.506×10^-8

骨架结构	最大应变/mm
骨架结构	水平方向	竖直方向
层叠	2.344×10^-6	2.410×10^-6
立方体	3.454×10^-6	3.685×10^-6
菱形十二面体	5.131×10^-6	5.137×10^-6