Analysis on Vibration Characteristic of Contactor Based on Modelica

doi:10.16628/j.cnki.2095-8188.2023.08.005

Abstract

Abstract:

To study the failure mechanism of contactors in vibration environments, taking a high-voltage DC contactor as an example, the mathematical model of its four degree of freedom vibration system is built and solved using Modelica, which is a language based on equations. By defining the acceleration amplification factor and analyzing the influence factors, it is found that the acceleration amplification factor is decreasing and the anti-vibration characteristics of the product is improving with the increase of the spacer stiffness. Finally, the measured acceleration amplification factor is obtained by testing two different material of spacers on the vibration test-bed. The measured data is consistent with the theoretical results. The conclusions are valuable for the anti-vibration design of the product.

Key words: contactor, vibration characteristic, Modelica, vibration test-bed

CLC Number:

TM572.2

ZHAO Yong, MA Wei, WANG Jianxiong. Analysis on Vibration Characteristic of Contactor Based on Modelica[J]. LOW VOLTAGE APPARATUS, 2023, 0(8): 29-32.

Figures/Tables 9

References 10

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参数	数值	参数	数值
m₁/kg	0.009	k₃/(N·m^-1)	2.3×10⁷
m₂/kg	0.01	k₄/(N·m^-1)	2050
m₃/kg	0.29	k₅/(N·m^-1)	531.8
m₄/kg	0.11	k₆/(N·m^-1)	1.3×10⁷
k₁/(N·m^-1)	855	x₀₁/m	0.002 55
k₂/(N·m^-1)	1.9×10⁷	x₀₂/m	0.004 4

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