Research Article

Variable Structure Control and Its Ground Experimental Test for the Space Station Robot

Table 2

Estimated dynamic parameters of the robot.

ParametersJoint 1Joint 2Joint 3Joint 4Joint 5Joint 6

(kg)101010101010
(kg·m)0.0000001467.621893120.9736650.877570-5.497015-3.474394
(kg·m)0.000000-485.168899512.922191-4.10534349.2017869.947225
(kg·m)0.0000000.0000000.0000000.0000000.0000000.000000
(kg·m2)0.000000-3105.984543-429.633816139.535980-35.190459-5.898670
(kg·m2)0.000000-2279.068182175.632270-37.783294-5.6128434.712513
(kg·m2)0.000000-168.579890137.1440881.357674-25.300536-3.631684
(kg·m2)0.000000-2153.914022-14.634628-0.000770-0.030217-0.012071
(kg·m2)0.000000-467.555176158.191065-34.563860-15.506560-19.074189
(kg·m2)1355.845148-4625.319065315.581754123.91823039.386756-10.111644
(kg·m2)0.0000000.000000-1198.01047681.708986-14.478101-27.911115
(Nm·s/rad)5469.2581784450.4764428730.3266942888.5546521857.202169-2029.910574
(Nm·s/rad)7102.36447031212.70109916441.7859263909.4600841322.9478881322.947888