Figure 2

Comparison of mode shapes between irregular-shaped plate and the equivalent rectangular plate for the lowest 4 modes11. (a) Mode 1:T(1,1), (b) Mode 1: m = 1, n = 1, (c) Mode 2: T(1,2), (d) Mode 2: m = 2, n = 1, (e) Mode 3: T(2,1), (f) Mode 3: m = 1, n = 2, (g) Mode 4: T(1,3), (h) Mode 4: m = 3, n = 1.