Open AccessResearch on the simulation modelling of high‐voltage switchgear ring‐shaped spring contact force
Author(s) -
Zhijun Wang,
Yujing Guo,
Yongqi Yao,
Yapei Liu,
Gang Wang,
Bo Zhang,
Hao Zhang,
Xiangyu Hao
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.8736
Subject(s) - contact force , switchgear , contact resistance , spring (device) , mechanics , deformation (meteorology) , finite element method , voltage , coulomb's law , materials science , stress (linguistics) , coulomb , structural engineering , mechanical engineering , engineering , physics , electrical engineering , classical mechanics , composite material , electron , linguistics , philosophy , layer (electronics) , quantum mechanics
In order to explore the simulation method of the contact force for the ring‐shaped spring and provide the support for the design of high‐voltage switchgear‐rated current and mechanical operating power, the parametric equation was derived, based on NX software the three‐dimensional model was built, considering the influence of contact, friction, and large deformation, the non‐linear dynamic finite element simulation model for the process of assembling and operating was established, the stress, resistance force, and friction force at any moment were obtained by simulation, and the variation of resistance and friction force during contact insertion was analysed. The results show that during the mechanical operating process, the resistance force rapidly increased to the extreme value and then gradually decreased to a stable value of 238N, and the friction force quickly increased and then slowly rose to the steady value of 238N, which is consistent with the experience and proved the rationality of the simulation model. Finally, according to the Coulomb friction law, the contact force of the spring contact was calculated as 1190N.