The Effect of Shock and Vibration Loads on Disconnection and Fluctuations of Electrical Current in Connectors

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Darvish Gohari, Hamed | 2013

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 44687 (08)
University: Sharif University of Technology
Department: Mechanical Engineering
Advisor(s): Behzad, Mehdi
Abstract:
Electrical connectors that used in high speed systems interrupt the connection at the effect of Inertia. Also connectors should be able to work in high vibration conditions without any problems. Vibration of the connector pins can reduce the contact area or even remove it at very short time intervals, which lead to increase connector resistance or disconnection of instantaneous current. These current fluctuations will result in unpredictable performance disturbanceof the electrical system in very sensitive systems and therefore it should be avoided. In this Project, impacts of shock and vibration loads on the connectors is modeled by using FEM and with consideration of this model, connection or disconnection of the electrical current of connector is distinguished. To investigation of connection of electrical current, the conncector is done with experimental data. For contininge of modeling, fluctuations of electrical resistance of the circuit are investigated by ANSYS. Finally, the parameters, effective on the electrical resistance fluctuations of connection are determined and their relationship with fluctuations in electrical resistance is specified
Keywords:
Electrical Resistivity ; Electric Connector ; Vibration ; Contact Problem ; Contact Stresses

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