Table 1.

Mechanical and geometrical properties of the considered cantilever setups.

Parameter	Constant Cross-Section Area Cantilever	Optimal Shape
${\omega }_1, \text{Hz}$	86	66
${\omega }_2,\text{Hz}$	541	534
Density, kg/m3	7850
Elastic modulus, N/m2	2 × ${10}^{10}$
Poisson’s ratio	0.33
Length, m	0.1
Width a, m	0.01
Thickness b, m	1 × 10−3	Varying from 4 × 10−4 to 1 × 10−3