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
J d	Moment of inertia of the motor rotor	0.0004 kg∙m2
J z	Moment of inertia of the load (screw)	0.0016 kg∙m2
i z	Transmission ratio	1 : 1
η	Transmission efficiency	0.9
b	Equivalent viscous friction coefficient	0.003 N∙s/m