Figure 1. Coupled mechanical and electrical mesh.

(A) Coupled mechanical and electrical mesh. The mass points are indicated as large black dots. The finite difference points to solve Eq.(1) are indicated as small white dots. The lattice springs are indicated as black lines. (B) Unit cell of the two-dimensional lattice. Mass point 1 and its four horizontal and vertical nearest neighbors and four diagonal next-nearest neighbors are connected with direct active and diagonal passive springs. Lattice springs are indicated by zigzagging lines (fat lines for active and thin lines for passive springs). Dotted contours indicate insets for the associated subfigures. (C) Vectors used in Eqs.(7)-(10) for calculating lattice interactions. Figure taken from [15].