The Stiffness Calculation and Optimization for the Variable Stiffness Load Torque Simulation System

Table 2

Root mean square error for different load stiffness values.

Data group	Ma = 0.4; Load stiffness; ()	Ma = 0.8; Load stiffness; ()	Ma = 1.1; Load stiffness; ()
1	0.0178	0.102	0.265	0.032374
2	0.020	0.102	0.265	0.032323
3	0.020	0.111	0.297	0.101773
4	0.0184	0.1026	0.2672	0.036783
5	0.0183	0.1072	0.2558	0.020048
6	0.0167	0.0953	0.2705	0.042441
7	0.015	0.15	0.25	0.055954
8	0.025	0.18	0.3	0.143948