From: Improved Stiffness Modeling for An Exechon-Like Parallel Kinematic Machine (PKM) and Its Application
 | Correction effect | Mean | Stdev | Max | Min | Distribution | ||
---|---|---|---|---|---|---|---|---|
[0.9, 1] | [0.6, 0.9) | [0, 0.6) | ||||||
Orthogonal experiment | me11 | 0.96 | 0.01 | 0.98 | 0.95 | 49 | 0 | 0 |
me22 | 0.90 | 0.12 | 1.00 | 0.53 | 36 | 12 | 1 | |
me33 | 0.98 | 0.01 | 1.00 | 0.97 | 49 | 0 | 0 | |
me44 | 1.00 | 0.00 | 1.00 | 1.00 | 49 | 0 | 0 | |
me55 | 1.00 | 0.00 | 1.00 | 1.00 | 49 | 0 | 0 | |
me66 | 1.00 | 0.00 | 1.00 | 0.99 | 49 | 0 | 0 | |
Verification experiment | me11 | 0.83 | 0.12 | 1.00 | 0.37 | 3 | 20 | 2 |
me22 | 0.69 | 0.16 | 0.91 | 0.32 | 1 | 18 | 6 | |
me33 | 0.68 | 0.07 | 0.73 | 0.44 | 0 | 23 | 2 | |
me44 | 0.99 | 0.00 | 1.00 | 0.99 | 25 | 0 | 0 | |
me55 | 0.99 | 0.00 | 0.99 | 0.98 | 25 | 0 | 0 | |
me66 | 0.93 | 0.02 | 0.98 | 0.86 | 24 | 1 | 0 |