[Retracted] Vibration Control of a Helicopter Rescue Simulator on a Flexible Base

Table 1

Specification parameters of the electric cylinder.

Symbol	Physical sense	Value and unit
γ	Potential coefficient	0.53 V∙s/rad
λ	Torque coefficient	8.87 V∙m/N
Jd	Moment of inertia of the motor rotor	0.0004 kg∙m^2
Jz	Moment of inertia of the load (screw)	0.0016 kg∙m^2
iz	Transmission ratio	1 : 1
η	Transmission efficiency	0.9
b	Equivalent viscous friction coefficient	0.003 N∙s/m