DocumentCode :
1976270
Title :
Numerical research on the electrical contact model and thermal analysis of the Roll-Ring
Author :
Junxing Chen ; Mingzhe Rong ; Fei Yang ; Yi Wu ; Hao Sun ; Yun Yang
Author_Institution :
State Key Lab. of Electr. Insulation & Power Equip., Xi´an Jiaotong Univ., Xi´an, China
fYear :
2013
fDate :
20-23 Oct. 2013
Firstpage :
1
Lastpage :
4
Abstract :
The Roll-Ring with a rolling electrical contact is usually utilized in an electrical energy transmission system between two continuous relative rotated equipments, such as the rotation system in radar, tank, space station and so on. As long as the requirement of the transmission power increasing in these years, the rolling electrical characteristic is more and more important for the long-life design of the rolling ring, due to the influence of the thermal effect produced by the electrical resistance which will accelerate the degradation process of the Roll-Ring. In this paper, a three-dimensional numerical model is developed to simulate the rolling electrical contact. In the model, the structural stress, deformation of the flexible ring, current contraction and thermal effect are considered. Based on the calculation, the temperature distribution, current density and the contact status can be obtained. Moreover, the influences of the contact pressure on the electrical contact resistance are analyzed in detail.
Keywords :
contact resistance; current density; deformation; electric connectors; finite element analysis; power transmission; rings (structures); space vehicles; temperature distribution; thermal analysis; 3D numerical model; Roll-Ring; contact pressure; contact status; continuous relative rotated equipments; current contraction; current density; degradation process; electrical contact model; electrical contact resistance; electrical energy transmission system; finite element analysis; flexible ring deformation; numerical research; radar; rolling electrical characteristic; rolling electrical contact; rotation system; space station; structural stress; tank; temperature distribution; thermal analysis; thermal effect; transmission power; Force; Geometry; Materials; Numerical models; Switches; Temperature; Thermal analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electric Power Equipment - Switching Technology (ICEPE-ST), 2013 2nd International Conference on
Conference_Location :
Matsue
Type :
conf
DOI :
10.1109/ICEPE-ST.2013.6804345
Filename :
6804345
Link To Document :
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