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Table 2 Required range of the position and orientation variables and their speed

From: Parameter Optimization of a Stability-Training Platform’s 4-PSS/PS Parallel Mechanism Based on Training Ability Evaluation Index and PSO Algorithm

Symbol of the position and orientation parameters

The required range

The required speed range

Roll angle θr (°)

[− 15, 15]

[− 5, 5] (°)/s

Pitch angle θp (°)

[− 28, 28]

[− 5, 5] (°)/s

Yaw angle θy (°)

[− 28, 28]

[− 5, 5] (°)/s

Translation distance z (mm)

[0, 300]

[− 50, 50] mm/s