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PRELIMINARY THEORETICAL SOLUTION
FOR ELECTRIC CONTACT RESISTANCE BETWEEN ROUGH SURFACES
Cristina CIORNEI
tina_criss2005@yahoo.com
Emanuel DIACONESCU
emdi@fim.usv.ro
Department of
Mechanical Engineering, Stefan cel Mare University of
Suceava, ROMANIA
Abstract.
In contacts design, it is important to know
the contact pressure, the real contact area and the electrical
contact resistance. This depends on the material conductibility, on
the geometry of the contacting surfaces, on the applied load and on
the current through the contact. This paper aims to determine
numerically, by CG-DCFFT technique, contact area configuration and
dimensions, in the case of rough surfaces. Knowing the microcontact
areas configuration and dimensions, the electrical resistance is
computed with analytical formulas.
Keywords:
numerical simulation, electrical contact resistance,
CG-DCFFT
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