Effects of voltage change on the dynamics in a comb-drive finger of an electrostatic actuator

Here we consider a transverse comb-drive device with one moveable finger between two fixed ones when a harmonic load driven DC-AC voltage Vδ(t)=v0+δv(t), v(t)∈C(R∕TZ), v0-constant and δ∈[0,Δc] is added for some appropriate Δc. By means of the Leray-Schauder Continuation Theorem we find families of symmetric periodic solutions emanating from the DC-voltage case (δ=0) for all positive values of the parameter δ, providing qualitative and quantitative information of this families for a computable Δc avoiding collision of the fingers.