Research Article

Adaptive Neural Network Control of Serial Variable Stiffness Actuators

Table 1

SVSA parameter specifications.

DescriptionSymbol (unit)Value

Output link inertia (kg⋅m2)0.0063
Motor M1 + gearbox + intermediate inertia (kg⋅m2)0.0134
Motor M2 + gearbox + ASRM inertia (kg⋅m2)0.0110
Output link damping (N⋅ms/rad)
Motor M1 damping (N⋅ms/rad)
Motor M2 damping (N⋅ms/rad)
Inherent spring stiffnessKs (N/m)3764.5
Radius (mm) (m)0.05
Range of motion(deg.)0–360
Range of deflection angle(deg.)0–30
Range of stiffness(N⋅m/rad)1.7–150.5