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guoj801
1 Posts |
 Posted - Mar 24 2008 : 13:25:00
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Hi there,
I am using FastCap2 for electrostatic problems. It's really great work, but can anybody tell me how to calculate the electrostatic force vector applied on the surface? Should I do it according to F=dC*V^2/2, i.e. calculate C twice with slight different position? |
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Enrico
550 Posts |
Posted - Jul 14 2009 : 11:46:56
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Yes I would say so, I would apply F=dC/dD*V^2/2, where C is the capacitance, D is the distance, V is the voltage. Take care however of how the surface would move, you may need to consider different geometric parameters.
I could suggest as reference the paper by R. C. Batra, M. Porfiri and D. Spinello, "Capacitance Estimate for Electrostatically
Actuated Narrow Microbeams", Micro & Nano Letters, 1:2, 71-73, 2007.
(you can find it online)
Best Regards,
Enrico |
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How to calculate electrostatic force
