波动载荷下滑动电接触摩擦力建模

doi:10.19595/j.cnki.1000-6753.tces.181488

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Abstract During the sliding electrical contact of the pantograph catenary, the wear of the pantograph slide is intensified, which greatly shortens the service life of the pantograph slide. Since the wear problem of the pantograph slide is directly related to the sliding friction, it is important to study the sliding friction of the slide. In this paper, the Coulomb+Viscous static friction model was used to the model of sliding electrical contact friction. A new friction model was established by modifying the viscous friction part of the original friction model and introducing the factors, such as the contact current, contact force, and their fluctuation amplitude and fluctuation frequency. The experiment was carried out by self-developed sliding electrical contact experimental machine. Then the parameters of the new friction model were identified by particle swarm optimization and Matlab, and the improved friction model was verified. From the fitting effect diagram and residual plot, the improved friction model could reasonably predict the sliding electrical contact sliding friction force of pantograph catenary under the fluctuating load.

Key words： Fluctuating load sliding electrical contact friction model Coulomb+Viscous friction model particle swarm optimization

Received: 04 September 2018 Published: 30 December 2019

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TM501

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	Chen Zhonghua
	Dang Wei
	Shi Guang
	Wang Xili
	Liu Fusheng

Cite this article:

Chen Zhonghua,Dang Wei,Shi Guang等. Modeling of Sliding Electrical Contact Friction under Wave Loading[J]. Transactions of China Electrotechnical Society, 2019, 34(24): 5126-5134.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.181488 OR https://dgjsxb.ces-transaction.com/EN/Y2019/V34/I24/5126

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