Table 1. Parameters used in the numerical simulations.

Parameters	Symbols	Value	Unit
Elasticity modulus (Young’s modulus) of FR4	E	19 × 109	Pa
Stretchable beam thickness	tS	2 × 10−4	m
Stretchable beam width	wS	2 × 10−3	m
Thick beam thickness	tR	5 × 10−4	m
Thick beam width	wR	4 × 10−3	m
Thick beam length	l	20 × 10−3	m
Equivalent mass	M	3.56 × 10−3	kg
Linear spring coefficient	k	440	N/m
Nonlinear spring coefficient	kn	5.88 × 108	N/m3
Dipole moments of magnets in bistable configuration	m1, m2	12.64 × 10−3	A·m2
Gap distance between bistable magnets	d	variable	m
Mechanical damping coefficient	ξ	0.012	—
Inductance of the coil	L	3.425 × 10−3	H
Resistance of the coil	RCoil	710	Ohm
Load resistance	RLoad	3000	Ohm